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THE SHOULDER JOINT


 MAJ VM PHILIP
 JUNIOR RESIDENT
 ORTHOPAEDICS
FUNCTIONS OF SHOULDER
 PRIMARY: hand placement in
various positions to accomplish
the upper limb tasks
 SECONDARY:
1) Suspension of the upper
limb
2)Sufficient fixation for upper
limb movement
3)Fulcrum for arm elevation
SHOULDER COMPLEX
 Three bones
 Three joints
 One pseudojoint
1/3
-
1/4
Diameter: 37-
55 mm
Diameter: ≈ 41
mm
Humeral head is half a sphere roughly
articulating with one third to one fourth of
the surface of glenoid fossa
ball and socket
Anatomy
 Glenohumeral joint
 “Ball and socket” vs
“Golf ball and tee”
 Very mobile
 Price: instability
 45% of all dislocations
 Joint stability depends
on multiple factors
Glenohumeral Joint
 Humeral head faces medially,
posteriorly and superiorly
 Glenoid :laterally,anteriorly and
superiorly at rest and lateral,
inferior and posterior in
dependant position
 Head shaft angle : 130 – 150 deg
(long axis) and 30 – 40 deg
retroverted in the frontal plane
Glenohumeral Joint
 GLENOID LABRUM
 Dense fibro cartilage attached the
glenoid fossa and joint capsule
 Forms a part of articular surface
 Long head of biceps: half of the
fibres originate from the superior
labrum
 Increases joint stability (75%
vertical and 56% transverse)
Glenohumeral Joint
 Joint capsule:
- laterally attached to the neck
of humerus
- medially to the periphery of
glenoid and labrum
 Capsule is lax with multiple
recesses
 Axillary recess: inferiorly is lax
and redundant permitting
normal arm elevation
Joint Capsule - Posterior View
A. Acromion
B. Scapular spine
C. Coracohumeral ligament
D. Supraspinatus muscle
(cut away)
E. Infraspinatus muscle (cut
away)
F. Teres minor muscle (cut
away)
G. Triceps muscle (cut away)
H. Capsule
Glenohumeral Joint: capsule
 Joint capsule:
 -Anteriorly reinforced by
the ‘Z’ ligaments
 Rotator cuff : stregthens
capsule anterior, superior and
posteriorly

lined by synovial membrane
from glenoid labrum to neck
of humerus
Anatomy
 Scapula
 Glenoid
 Acromion
 Coracoid
 Subscapular fossa
 Scapular spine
 Supraspinatus
fossa
 Infraspinatus
fossa
GLENOHUMERAL JOINT
 Humerus
 Anatomical neck
 Greater and lesser
tuberosities
 IT groove: angle of
wall(60° to 75°)
 Tendon of long h
 ead of biceps makes an
abrupt right angle turn to
lie in the IT groove
GLENOHUMERAL JOINT
 Surgical neck of
humerus
region below greater
and lesser tuberosities
where head meets the
shaft
Axillary nerve
Posterior circumflex
humeral artery
Glenohumeral Joint
 Joint capsule:
 -Anteriorly reinforced by the ‘Z’
ligaments
 Rotator cuff : stregthens capsule
anterior, superior and posteriorly

lined by synovial membrane from glenoid
labrum to neck of humerus
Glenohumeral Joint
 Ligaments : function in a load
sharing fashion by reciprocal
tightening and loosening.
 Lax in mid range of motion
where rotator cuffs maintain
stability
 Anterior aspect of GH joint:
Gleno humeral
ligaments(sup,middle and inf) +
coraco humeral ligaments:
Z ligaments
Glenohumeral Joint : Ligaments
 Superior GH ligament
 Origin - 12o’ clock of
glenoid rim
 Direction - inferior and
lateral
 Insertion - anatomical
neck
 Function - limits external
rotation and inferior
translation of the humeral
head with arm on the side
Glenohumeral Joint : Ligaments
 Middle GH ligament: poorly
developed
 Origin :2 or 3 o’ clock of glenoid
rim
 Direction: inferior and lateral
 Insertion: anatomical neck
 limits external rotation and
anterior translation of the
humeral head with arm in 0 to 45°
of abduction
Glenohumeral Joint : Ligaments
 Inferior GH ligament complex(IGHLC)
 Components:
1. Anterior band
2. Posterior band
3. Axillary pouch
 Anterior band
 Origin : b/w 2 and 4 o’ clock of
glenoid rim
Insertion : below lesser tuberosity
Function : limits external rotation
and inferior translation of the humeral
head with arm abducted to 90°
Glenohumeral Joint : Ligaments
 Inferior GH ligament
complex
- Posterior band
- b/w 7 and 9 o’ clock of
glenoid rim
- limits internal rotation in
abduction
- Anteror + posterior : anterior
translation at 90° abduction
IGHLC
Glenohumeral Joint : Ligaments
 Coracohumeral ligament:
Functions
 covers the Superior GH ligaments
 fills the space b/w supraspinatus
and subscapularis and complete
the rotator cuff anteriorly
 Ant band limits extension of GH
 Post band limits flexion of GHJ
 Both limit the inferior and posterior
translation of humeral head

Glenohumeral Joint : Ligaments
 Coraco acromial ligament: roof
of the shoulder
 From coracoid to antero inferior
acromion ext into AC joints
 Two bands near acromion
 Prevent separation of AC jt
Glenohumeral Joint : Ligaments
 Coraco acromial arch: Ant inf
acromion + coracoacromial
ligament +inf ascpect of AC jt
 Scaption: supraspinatus tendon
passes under the arch
 Scaption + int rotation : SS tendon
passes under coraco acromial
ligament
 Scaption + ext rotation: SS tendon
passes under acromion
Glenohumeral Joint : Suprahumeral space
 Boundaries:
Inf : tuberosity of humerus
ant med : coracoid process
sup : coraco acromial arch
 Structures (inf to sup)
- Head of humerus
- Long head of biceps tendon
- Superior aspect of joint capsule
- Supraspinatus,upper margins of
subscapularis and infraspinatus
- Subacromial-subdeltoid bursae
Glenohumeral Joint : Suprahumeral space
 Arm adducted by the side : 11 mm
 Arm at 90° abduction : 5.7mm
 Space is narrowest b/w 60° and 120°
Anatomy
 Rotator Cuff
Muscles
 S – Supraspinatus
 I – Infraspinatus
 T - Teres minor
 S- Supscapularis
Glenohumeral Joint : Bursae
 Approx eight in shoulder
complex
 Subacromial Bursa: one of the
largest
 Two smooth serosal layers to
deltoid and rotator cuff
 Also connected to
acromion,GT,coraco acromial
ligament
 Allows rotator cuff to slide easily
beneath deltoid
Glenohumeral Joint Nerve supply
 Derived from C5 to C8 nerve roots embryologically
 Anterior shoulder joint : axillary(C5-C6)
subscapular(C5-C6)
lateral pectoral(C5-C6)
 Posterior shoulder joint : suprascapular(C5-C6)
axillary(C5-C6)
Glenohumeral Joint : Blood supply
 Branches of Axillary artery
- ant circumflex humeral
- post circumflex humeral
- suprascapular
- circumflex scapular
Glenohumeral Joint : Blood supply
 Labrum: post cx humeral and subscapular ( capsule)
 Rotator cuff:
- supraspinatus : thoracoacromial
- subscapularis : ant cx humeral
- infraspinatus post cx humeral
- teres minor suprascapular
Glenohumeral Joint : Blood supply
 Biceps :Branches of Brachial artery
 Critical zones : supraspinatus and biceps
relatively avascular
 Supraspinatus vulnerable:
 compressed by subacromial sructures
 Blood supply parallel to tendon fibres, susceptible to
stretch
 Critical zone proximal to insertion
Acromioclavicular Joint
 Connects acromion
process with lateral
clavicle
 Plane- synovial joint
 Gliding motion
occurs in all planes
 Suspends upper limb
from the trunk
Acromioclavicular Joint
 hyaline cartilage initially,
fibrous in adolescence
 10 to 50 deg inclination
 Acromion faces ant, med
and sup
 Thin capsule ,capsular lig
 AC ligament prevents
posterior translation and
posterior axial rotation
Acromioclavicular Joint: ligaments
 CORACOCLAVICULAR
 from coracoid to inferior
surface of clavicle
 Two parts:
 Conoid ligament
 Trapezoid ligament
 Vertical stability to AC
jt, superior & ant
translation , ant axial
rotation
Acromioclavicular Joint: ligaments
 Conoid ligament
 Fan shaped
 Apex inferior
 Medial of the two
 Frontal pane
 prevent coracoid movt
away from clavicle
Acromioclavicular Joint: ligaments
 Trapezoid ligament
 Quadrilateral sheet
 From medial border of
upper surface of coracoid
 Runs supero laterally to
the inferior surface of
clavicle
 Larger,longer and
stronger
 Plane perpendicular to
conoid
 Blocks medial coracoid
movt
Sternoclavicular Joint
 Formed by
- medial end of clavicle
- claviclar notch of manubrium
- first rib cartilage
 Saddle/plane joint
 Fibrocartilagenous articular
disc
 Angulated 20° posterolaterally
 Lateral aspect of the joint acts
as an ovoid
Sternoclavicular Joint
 In vertical: proximal
end of clavicle is
convex and
manubrium concave
 In AP view: proximal
clavicle is concave
and the manubrium
convex
Sternoclavicular Joint (cont’d)
 Articular disk
- attached to the upper and
posterior end of clavicle and
cartilage of first rib
- thick in perphery
- divides the joint into two unequal
parts
- more movt occurs b/w clavicle and
disk
- prevents medial displacement of
clavicle
-
Sternoclavicular Joint : ligaments
 Anterior Sternoclavicular
 Posterior Sternoclavicular
 Interclavicular
 Costoclavicular
 Ant sternoclavicular
 Covers ant aspect
 Runs obliquely from clavicle to
sternum
Sternoclavicular Joint (cont’d)
 Post SC ligaments
 Posterior aspect of jt
 Runs down and medially
 Interclavicular ligaments
 Connects the
superomedial sternal
ends of both clavicles
with the capsular
ligaments and upper
sternum
Scapulothoracic Articulation
 Not a joint anatomically
 Scapula moves over the rib cage of the
thorax
 Not directly attached
 Connected indirectly via the clavicle and
several muscles
 Provides motion and flexibility to the
body
 15-18 cms of translation at ST jt
normally
Anterior Shoulder Muscles
 Coracobrachialis
 Pectoralis Major
 Subscapularis
 Biceps Brachii
Biceps Brachii
 Origin
 Short head:
coracoid process of
scapula
Long head:
supraglenoid
tubercle of scapula
 Insertion
Tuberosity of radius
 Action Flexion of the
elbow and shoulder,
Supinates forearm
 ***the long head is
the “5th
rotator cuff”
Coracobrachialis
 O: Coracoid process
 I: Anteromedial
surface of midshaft
of humerus
 Actions: (WEAK!)
 Flexion
 Adduction of the
shoulder
Pectoralis Major
 Origin:
 Medial two-thirds of clavicle
 Sternum
 Insertion: intertubercular
groove
 Actions
 Upper fibers (Clavicular)
• Flexion
• Horizontal Adduction
 Lower fibers (Sternal)
• Internal/medial Rotation
• Horizontal adduction
Subscapularis
 O: Subscapular fossa
 I: Lesser tubercle and
crest of humerus
 Actions:
 Internal Rotation
 Stabilization
 Anterior Rotator Cuff
Muscle.
Superior Shoulder Muscles
 Deltoid
 Supraspinatus
Deltoid
 Origin
 Lateral 1/3 of clavicle
(Anterior fibers)
 Acromion process (Middle
fibers)
 Spine of scapula
(Posterior fibers)
 Insertion – deltoid tuberosity
Actions
Anterior –Flexion
Middle – Abduction
Posterior –Extension
Inferior Shoulder Muscles
 Latissimus Dorsi
 Teres Major
Latissimus Dorsi
 O: Spinous process of
lower 6 thoracic and all
lumbar and sacral
vertebrae; iliac crest
 I: Intertubercular groove
 Actions:
 Adduction
 Internal Rotation
 Extension
Teres Major
 O: Inferior angle of
scapula
 I: Intertubercular groove
 Actions:
 Adduction
 Internal rotation
 “Lats little helper”
Posterior Shoulder Muscles
 Infraspinatus
 Teres Minor
 Triceps
Brachii
Triceps Brachii
 Origin
Long head: infraglenoid
tubercle of scapula
Lateral head: posterior
surface of humerus,
Medial head: posterior
surface of humerus
Insertion Olecranon
process of ulna
 Action Chief extensor of
elbow (long head
extends the shoulder)
Infraspinatus
 O: Infraspinous fossa
 I: Greater tubercle
 Actions:
 External rotation
 Stabilization
 Posterior Rotator Cuff
Muscle
 Second most commonly
injured rotator cuff muscle
Teres Minor
 O: lateral border of
scapula
 I: Greater tubercle
 Actions:
 External rotation
 Stabilization
 Posterior Rotator
Cuff Muscle
Trapezius
 Origin occipital
bone, nuchal
ligament, and
spinous processes of
C7 - T12 vertebrae
 Insertion Lateral
third of clavicle,
acromion, and spine
of scapula
 Action
 superior fibers
elevate,
 middle fibers retract,
 inferior fibers
depress scapula;
Levator Scapula
 Origin C1 - C4
vertebrae
 Insertion
Superior angle
 Action Elevates
scapula
Rhomboid major and minor
 Origin
Minor: spinous
processes of C7 and
T1 vertebrae
Major: spinous
processes of T2 - T5
vertebrae
 Insertion Medial
border of scapula
 Action Retract
scapula
Serratus Anterior
 Origin the eight
upper frontal ribs
 Insertion lateral
border of scapula
 Action protracts
scapula
Glenohumeral Joint: Biomechanics
 Complex interaction amongst the joints
in a smooth harmonious movt
 G-H :: ball on a seal’s nose
 Greatest ROM
 2:1 at gh:st joints
Glenohumeral Joint: Biomechanics
 Three DOF:
- flexion/extension
- abduction/adduction
- internal/ext rotation
Glenohumeral Joint:biomechanics
 Scapula: stable base
 Attaches indirectly to the rib
cage
• Anteriorly concave and glides over
the convex rib
• Located between the second and
seventh ribs
• Position : 30 degrees (frontal)
3 degree superior
FRONTAL PLANE
SAGITTAL PLANE
SCAPULAR PLANE
30 degrees
Glenohumeral Joint
 Scaption : arm elevation occuring
at 30 to 45 degrees anterior to
the frontal plane
Glenohumeral Joint: Biomechanics
 Static shoulder stabilisation
- requires very little muscle support
- provided by trapezius and supraspinatus
- vertical stability:glenoid facing up by trapezius
- inferior stability: intra articular pressure and
adhesion/cohesion of articular surfaces
- anatomic curvature of humerus
- glenoid labrum
- negative intraarticular pressure
Glenohumeral Joint: Biomechanics
 Dynamic shoulder stabilisation
- requires complex factors
Major dynamic stabilisers
- long head of triceps and biceps
- humeral head max stabilisation: subscapularis
Posterior restraints
- <90° abduction : post capsule
- 90° abduction : IGHLC
Scapulohumeral Rhythm
 Describes the movement relationship between the
scapula and humerus to maintain angle b/w scapula
and humerus <30°
 First 30° of shoulder joint motion pure GH motion
 After that, for every 2° of shoulder flexion or abduction,
the scapula rotates 1°
 2:1 ratio → scapulohumeral rhythm
 Full abduction: glenoid completely support humerus
 0-80° →more humeral motion
 80-140° → more scapular motion
 140-170° →neighbouring joints
Scapulothoracic Articulation:Biomechanics
 0-90°=60°+30° at GH and ST
- St movt = 20-25°of clavicular elevation at SC jt
05-10° of upward rotation at AC jt
 90 to 180° = 60° of GH movt + 30° ST movt
- St movt = 05-10°of clavicular elevation at SC jt
20-25° of upward rotation at AC jt
Glenohumeral Joint:Biomechanics
 Close Pack position : 90° abduction
and full external rotation
 Open Pack position : 55°abduction
with 30° horizontal adduction
 Zero position : 0 degree
abduction,12° flexion,10° external
rotn
 Capsular pattern-Ext rotn:abduction:
internal rotation = 3:2:1
Acromioclavicular Joint:Biomechanics
 Three types:
rotation,spin,glide
 Rotation:
- AP rotatation
- superoinferior
AP rotation: longitudinal
 Through SC and AC jts
 30 to 50 deg -mostly SC
Acromioclavicular Joint:Biomechanics
 Protraction:ant movt of
acromial end of clavicle
 Retraction: post movt of
acromial end
Acromioclavicular Joint: Biomechanics
 Close Packed position
 90° GH joint abduction
 Open Packed position
 Arm is on the side
 Clavicle is 15° retracted
and 2° elevated
 Capsular pattern
pain in extremes of
horizontal adduction
and full elevation
Sternoclavicular Joint: Biomechanics
 Two types of translations
A-P & sup-inf (2:1) allowing
1. Elevation/depression
2. Protraction/retraction
3. Backward /forward rotation
 Elevation and depression
- 35 to 40 deg of elevation
- 15 deg depression
Sternoclavicular Joint: Biomechanics
 Protraction/retraction
- 15 to 20 deg both
- on protraction the concave
surface of clavicle moves on
convex sternum producing an
anterior glide of clavicle and
anterior rotation of lateral
clavicle
- on retraction medial clavicle
articulates with flat surface
and posterior rotation of
lateral end
Sternoclavicular Joint: Biomechanics
 Rotation
spin of the clavicle on manubrium
40° anterior and 5° posterior rotation
 Close Packed position
maximum arm elevation and protraction
 Open Packed position
arm by the side (postulated)
 Capsular pattern
full elevation and horizontal adduction
Scapulothoracic Articulation:Biomechanics
 scapula has five degrees of
freedom for movement on the
thorax:
 two translations and rotate in
three planes around three
different axes.
 translations:
- Elevation /Depression
- retraction &Protraction
 Rotations:
- scapular winging .
- scapular tipping
- up & down rotation
Rotational Movement of the
Scapula
 All three parts work together
(synergists) to retract the scapula
Rotational Movement of the
Scapula (cont’d)
 Middle trapezius - prime mover
 Upper and lower trapezius are antagonistic in
elevation/ depression
 Upper and lower trapezius are agonistic in upward
rotation
Clinical Examination
 History
 Inspection
 Palpation
 Range of Motion
 Measurements
 Special Tests
History - PainHistory - Pain
 Type and location of pain or symptoms
 Onset of pain (traumatic, insidious)Onset of pain (traumatic, insidious)
 Location of painLocation of pain
 Alleviating/Aggravating factorsAlleviating/Aggravating factors
 Night painNight pain
 Pain/weakness overhead activitiesPain/weakness overhead activities
Pain
 Typically pain of gleno-humeral origin is
felt in the upper arm, often at the insertion
of the deltoid.
 Severe shoulder problems can cause pain
to radiate as far as the radial side of the
wrist.
 Impingement/rotator cuff
pathology:anterior/lateral shoulder pain
aggrevated with overhead activities
Pain
 The shoulder is derived from the fifth
cervical segment and therefore refers pain
into the C5 dermatome.
 The acromio-clavicular joint is a C4
structure and refers pain into the C4
dermatome.
Pain
 The shoulder is deep and proximal in the
C5 dermatome, hence it can potentially
refer pain a great distance.
 Conversely the acromio-clavicular joint is a
superficial structure at the distal end of the
dermatome causing it to give rise to
accurate, local pain
Physical Exam – Inspection
 Front & Back
 Height of shoulder
& scapulae
 Asymmetry
 Obvious deformity
 Ecchymosis
 Muscle atrophy
 Supraspinatus
 Infraspinatus
 Deltoid
Physical Exam –Inspection
 Front & Back
 Height of shoulder
& scapulae
 Asymmetry
 Obvious deformity
 Ecchymosis
 Muscle atrophy
 Supraspinatus
 Infraspinatus
 Deltoid
Physical Exam – Inspection
 Front & Back
 Height of shoulder
& scapulae
 Asymmetry
 Obvious deformity
 Ecchymosis
 Muscle atrophy
 Supraspinatus
 Infraspinatus
 Deltoid
Palpation
 At rest & with
movement
 Bony structures
 Joints
 Soft tissues
Palpation
 Surface Anatomy
(Anterior)
 Clavicle
 SC Joint
 Acromion process
 AC Joint
 GH joint
 Coracoid process
 LT
 GT
 Subacromial bursa
 Pectoralis major
 Trapezius
 Biceps (long head)
AC joint
SC joint
biceps
Palpation  Surface Anatomy
(Posterior)
 Scapular spine
 Acromion process
 Supraspinatus
 Infraspinatus
 Teres Minor
 Trapezius
 Latissumus dorsi
 Scapula
• Inferior angle
• Medial border
Supraspinatus
Infraspinatus
Inferior angle
of scapula
Range of Motion
 Forward flexion:
160 - 180°
 Extension: 40 - 60°
 Abduction: 180◦
 Adduction: 45 °
 External rotation:
80 - 90 °
 Internal rotation:
60 - 90 °
Range of Motion
 Scapular dyskinesis
(Scapulothoracic
dysfuntion)
 Compare scapular
motion through ROM on
both sides
 Wall push-ups
 Symmetrical
 Smooth
 No or minimal winging
Strength Testing
 External rotation
 Tests RTC muscles that
ER the shoulder
• Infraspinatus
• Teres minor
 Arms at the sides
 Elbows flexed to 90
degrees
 Externally rotates arms
against resistance
Strength Testing
 Internal rotation
 Tests RTC muscle that
IR the shoulder
• Subscapularis
 Arms at the sides
 Elbows flexed to 90
degrees
 Internally rotates arms
against resistance
 Subscapularis Lift-Off
Test
 Other techniques
Strength Testing
 Supraspinatus
“Empty can" test
Jobe’s Test
Tests Supraspinatus
Attempt to isolate from
deltoid
Special Tests
 Impingement
 Rotator Cuff
Integrity
 Labrum and Biceps
 AC (SC) Joints
 Instability
:TESTS FOR
ROTATOR
CUFF/IMPING
MENT
TESTS FOR
ACROMIOCLAV
ICULAR JOINT
TESTS FOR
BICEP
TENDON
TESTS FOR
INSTABILITY
 Neer
impingment
test
 Hawkins
kennedy test
 Empty can test
 Drop arm test
 Lift off.Test
 Infraspinatus
test
 Spring back
test
 Teres minor
 Painful arc
 Forced
adduction test
 Forced
adduction test
in hanging
arm
 Duga’s test
1. Speed test
2. Yergason test
3. Bicep tendon
with
transverse
humeral
ligament test
1. Anterior
apprehension test
2. Posterior
apprehension test
3. Anterior posterior
drawer test
4. Inferior instability
test
5. Sulcus test
Impingement
TESTS FOR ROTATOR CUFF
AND IMPINGMENT
SYNDROME
IMPINGEMENT:
Primary impingment Secondary impingment
Occur because of degenerative
changes to the rotator cuff,the
acromian process,the coracoid
process and anterior tissues from
stress overload.
Occurs due to problem with
muscle dynamics with an upset
in the normal force couple action
leading to muscle imbalance and
abnormal movement patterns at
both the glenohumeral joint and
the scapulothoracic articulation.
Impingement is primary cause of
pain.
It is secondary to altered muscle
dynamics.
Occurs mostly in 40+ age group
people.
Occurs in young patients.(15-
35years old)
It is said to be intrinsic when
rotator cuff degeneration occurs
and extrinsic when the shape of
the acromian and degeneration of
the coracoacromial ligament
occurs.
Commonly seen with joint
instability.
NEER IMPINGMENT TEST:
PATIENT’S AFFECTED ARM IS PASSIVELY AND
FORCIBLY FULLY ELEVATED IN THE SCAPULAR
PLANE WITH THE ARM MEDIALLY ROTATED BY THE
EXAMINER.
•This passive stress
causes “jamming of
the greater tuberosity
against the
anteroinferior border
of the acromian.
•The patient’s face
shows pain reflecting
a +ve test.
HAWKIN’S KENNEDY IMPINGMENT
TEST:
PATIENT STANDS / SITS WHILE THE EXAMINER FORWARD
FLEXS THE ARM TO 90º AND FORCIBLY MEDIALLY ROTATES
THE SHOULDER.
•This movement
pushes the
supraspinatus
tendon against the
anterior surface of
the coracoacromial
ligament and
coracoid process.
•Pain indicates +ve
test.
THIS TEST MAY BE PERFORMED WITH THE PATIENT
STANDING OR SEATED.WITH THE ELBOW EXTENDED,
THE PATIENT’S ARM IS HELD AT 90° OF
ABDUCTION,30° OF HORIZONTAL FLEXION, AND IN
INTERNAL ROTATION (WITH THUMB FACING DOWN).
THE EXAMINER EXERTS PRESSURE ON THE UPPER
ARM DURING THE ABDUCTION AND HORIZONTAL
FLEXION MOTION.
•When this test elicits severe
pain and the patient is
unable to hold his or her arm
abducted 90° against gravity,
this is called a positive empty
can test/supraspinatus
tendinitis.
•The superior portions of the
rotator cuff (supraspinatus) are
particularly assessed in
internal rotation (with the
thumb down), and the
•anterior portions in external
rotation.
DROP ARM(CODMAN’S)TEST:
THE PATIENT IS SEATED, AND THE EXAMINER
PASSIVELY ABDUCTS THE PATIENT’S EXTENDED ARM
APPROXIMATELY 120°. THE PATIENT IS ASKED TO
HOLD THE ARM IN THIS POSITION WITHOUT SUPPORT
AND THEN SLOWLY ALLOW IT TO DROP.
Weakness in maintaining the
position of the arm, with or
without pain, or sudden dropping of
the arm suggests a rotator cuff
lesion. Most often this is due to a
defect in the supraspinatus.
APLEY’S SCRTCH TEST:
THE SEATED PATIENT IS ASKED TO TOUCH THE
CONTRALATERAL SUPERIOR MEDIAL CORNER OF THE
SCAPULA WITH THE INDEX FINGER.
Pain elicited in the rotator cuff and failure
to reach the scapula because of restricted
mobility in external rotation and abduction
indicate rotator cuff pathology (most
probably involving the supraspinatus).
YOCUM TEST
 LIFT PATIENT’S ELBOW TO SHOULDER
HEIGHT WITH ARM RESTING ON THE
NORMAL SHOULDER
HORNBLOWER’S SIGN (PATTE TEST)
 determines the strength of
the teres minor.
  The examiner elevates the
patient’s arm to 90 degrees
in the scapular plane. The
therapist then flexes the
elbow to 90 degrees, and the
patient is asked to laterally
rotate the shoulder. A
positive test occurs with
weakness and/or pain.
SUBSCAPULARIS TEST/LIFT OFF
TEST:
PATIENT IN STANDING POSITION PLACES THE
DORSUM OF THE HAND ON THE BACK. THE PATIENT
THEN LIFTS THE HAND AWAY FROM THE BACK. IF
PATIENT IS ABLE TO DO THEN LOAD PUSHING ON
HAND IS DONE BY THE EXAMINER TO CHECK THE
STRENGH.
•A patient with a subscapularis
tear will be unable to do
this.
•Abnormal motion in the scapula
during the test may indicate
scapular instability.
COMPARATIVE TESTING OF BOTH SIDES IS BEST.
THE PATIENT’S ARMS SHOULD HANG RELAXED WITH
THE ELBOWS FLEXED 90° BUT NOT QUITE TOUCHING
THE TRUNK. THE EXAMINER PLACES HIS OR HER
PALMS ON THE DORSUM OF EACH OF THE PATIENT’S
HANDS AND THEN ASKS THE PATIENT TO
EXTERNALLY ROTATE BOTH FOREARMS AGAINST
THE RESISTANCE OF THE EXAMINER’S HANDS.
Pain or weakness in external rotation
indicates a disorder of the
infraspinatus (external rotator).
.
 SPRING BACK TEST:Infraspinatus
Patient either in sitting or standing hold the
elbow in flexion at 90º by the side. Examiner
passively bring the shoulder to 90º abduction and
laterally rotate to the end range and ask the
patient to hold the arm to this position. For +ve
test of infraspinatus weakness/lesion patient
cannot hold the position and hand spring back
anteriorly.
TERES MAJOR TEST:
THE PATIENT IS STANDING AND RELAXED. THE
EXAMINER ASSESSES THE POSITION OF THE
PATIENT’S HANDS FROM BEHIND. THE TERES MAJOR
IS AN INTERNAL ROTATOR. WHERE A CONTRACTURE
IS PRESENT, THE PALM OF THE AFFECTED HAND
WILL FACE BACKWARD COMPARED WITH THE
CONTRALATERAL HAND.
LABRAL TEARS
 Clunk test
 Crank Test
 O Brien’s Test
 Compression-rotation test akin to Apley’s
grinding
 Biceps load test
CLUNK TEST
 Patient supine, examiner
puts hand on the posterior
aspect of the shoulder,
other hand hold the
humerus above the elbow
and abducts the arm over
the head. Then pushing
anteriorly with the hand
under the shoulder and
rotating the humerus
laterally with the other
hand, feel for a grind or
clunk which may indicate
a tear of the labrum.
O’BRIEN’S TEST
 Labral, AC, or biceps
pathology
 Arm flexed to 90°
 Arm cross-arm
adducted 10-15°
 Elbow extended
 Max pronation
 Resist downward force
 Positive test if painful
 Beware location of
pain
 AC
 Biceps
LABRAL TEAR: CRANK TEST
 Abduct arm to 90-120°
 Stabilize shoulder
 Elbow secured with
one hand
 Axially load with ER /
IR at shoulder
 Positive test: audible
or painful click / catch /
grind
ACROMIOCLAVICULAR JOINT
TESTS
PAINFUL ARC:
THE PATIENT’S ARM IS PASSIVELY AND ACTIVELY
ABDUCTED FROM THE REST POSITION ALONGSIDE
THE TRUNK. PAIN IN THE ACROMIOCLAVICULAR
JOINT OCCURS BETWEEN 140°AND 180° OF
ABDUCTION. IN AN IMPINGEMENT SYNDROME OR A
ROTATOR CUFF TEAR, BY COMPARISON, PAIN
SYMPTOMS WILL OCCUR BETWEEN 70°AND 120°.
In the evaluation of the active
and passive ranges of motion,
the patient can often avoid the
painful arc by externally
rotating the arm while
abducting it. This increases
the clearance between the
acromion and the diseased
tendinous portion of the
rotator cuff, avoiding
impingement in the range
between 70° and 120°.
THE NORMAL SIDE.
FORCED ADDUCTION TEST ON
HANGING ARM:
THE EXAMINER GRASPS THE UPPER ARM OF THE AFFECTED
SIDE
WITH ONE HAND WHILE THE OTHER HAND RESTS ON THE
CONTRALATERAL SHOULDER AND IMMOBILIZES THE
SHOULDER GIRDLE. THEN THE EXAMINER FORCIBLY
ADDUCTS THE HANGING AFFECTED ARM BEHIND THE
PATIENT’S BACK AGAINST THE PATIENT’S RESISTANCE.
Pain across the
anterior aspect of the
shoulder suggests
acromioclavicular joint
disease or subacromial
impingement.
DUGA’S TEST:
THE PATIENT IS SEATED OR STANDING AND
TOUCHES THE CONTRALATERAL SHOULDER
WITH THE HAND OF THE 90°-FLEXED ARM OF
THE AFFECTED SIDE THEN ATTEMPT TO LOWER
THE ELBOW TO THE CHEST IS MADE.
Acromioclavicular joint pain
suggests joint disease
(osteoarthritis,
instability, disk injury, or
infection).
A differential diagnosis
must exclude anterior
subacromial impingement
BICEP TENDON TEST
THE CLOSE ANATOMIC PROXIMITY OF
THE INTRAARTICULAR PORTION OF THE
TENDON TO THE CORACOACROMIAL
ARCH PREDISPOSES IT TO INVOLVEMENT
IN DEGENERATIVE PROCESSES IN THE
SUBACROMIAL SPACE. A ROTATOR CUFF
TEAR IS OFTEN ACCOMPANIED BY A
RUPTURE OR INJURIES OF THE BICEPS
TENDON.
SPEED TEST:
IN SITTING THE EXAMINER RESISTS SHOULDER
FORWARD FLEXION BY THE PATIENT WHILE THE
PATIENT’S FOREARM IS IN SUPINATION. PAIN IN
THE REGION OF THE BICIPITAL GROOVE
SUGGESTS A DISORDER OF THE LONG HEAD OF
THE BICEPS TENDON.
YERGASON TEST:
WITH THE PATIENT’S ELBOW FLEXED TO 90º AND
STABILIZED AGAINST THORAX AND WITH FOREARM
PRONATED, THE EXAMINER RESISTS SUPINATION
WHILE THE PATIENT ALSO LATERALLY ROTATES THE
ARM AGAINST RESISTANCE. DURING THIS
MOVEMENT WHEN THE TENDON IS FELT IN GROOVE
AS “POP OUT” .
•Pain in the bicipital groove is a sign
of a lesion of the biceps tendon, its
tendon sheath, or its ligamentous
connection via the
•transverse ligament.
•The typical provoked pain can be
increased by pressing on the tendon in
the bicipital groove.
BICEP TENDINITIS WITH
TRANSVERSE HUMERAL LIGAMENT
TEST:
THE PATIENT IS SEATED WITH THE ARM ABDUCTED
90°, INTERNALLY ROTATED, AND EXTENDED AT THE
ELBOW. FROM THIS POSITION, THE EXAMINER
EXTERNALLY ROTATES THE ARM WHILE PALPATING
THE BICIPITAL GROOVE TO VERIFY WHETHER THE
TENDON SNAPS.
•In the presence of
ligamentous insufficiency,
this motion will cause the
biceps tendon to
spontaneously displace out of
the bicipital groove.
•Pain reported without
displacement suggests biceps
•tendinitis.
INSTABILITY TESTS
SHOULDER PAIN MAY BE ATTRIBUTABLE
TO AN UNSTABLE SHOULDER. USUALLY
HISTORY OF A PERIOD OF INTENSIVE
SHOULDER USE (SUCH AS COMPETITIVE
SPORTS), AN EPISODE OF REPEATED
MINOR TRAUMA (OVERHEAD USE), OR
GENERALIZED LIGAMENT LAXITY. BOTH
YOUNG ATHLETES AND INACTIVE
PERSONS ARE AFFECTED, MEN AND
WOMEN ALIKE.
ANTERIOR APPREHENSION TEST:
PATIENT LIE SUPINE OR IN SITTING . ARM IS
ABDUCTED TO 90º WITH OTHER HAND ON THE
HUMERAL HEAD AND LATERALLY ROTATED
SLOWLY BY THE EXAMINER. WHILE
PERFORMING PATIENT’S EXPRESSIONS ARE
NOTED FOR APPREHENSION/FURTHER
RESISTENCE TO ROTATION. . WITH THE GUIDING
HAND, THE EXAMINER PRESSES THE HUMERAL
HEAD IN AN ANTERIOR AND INFERIOR
DIRECTION
Shoulder pain with reflexive
muscle tensing is a sign of an
anterior instability syndrome.
This muscle tension is an
attempt by the patient to prevent
imminent subluxation or
dislocation of the humeral
head.
SURPRISE TEST
 Similar to apprehension test
 But at max ext rotation the posterior force on the
humerus is removed and we look for
apprehension
 Most accurate single test for anterior instability
ROCKWOOD TEST
 It is important to know that at 45° of abduction,
the test primarily evaluates the medial
glenohumeral ligament and the subscapularis
tendon. At or above 90° of abduction, the
stabilizing effect of the subscapularis is
neutralized and the test primarily evaluates the
inferior glenohumeral ligament.
POSTERIOR APPREHENSION TEST:
PATIENT LIES SUPINE OR IN SITTING POSITION AND
EXAMINER ABDUCTS ARM IN SCAPULAR PLNE TO 90º
WHILE STABILIZING THE SCAPULA WITH OTHER
HAND. EXAMINER THEN APPLIES A POSTERIOR
FORCE ON THE ELBOW AND MOVES THE ARM IN
ADDUCTION AND MEDIALLY ROTATION.
ANTERIOR AND POSTERIOR DRAWER
TEST:
THE PATIENT IS SEATED. THE EXAMINER STANDS
BEHIND THE PATIENT. TO EVALUATE THE RIGHT
SHOULDER, THE EXAMINER GRASPS THE PATIENT’S
SHOULDER WITH THE LEFT HAND TO STABILIZE THE
CLAVICLE AND SUPERIOR MARGIN OF THE SCAPULA
WHILE USING THE RIGHT HAND TO MOVE THE
HUMERAL HEAD ANTERIORLY AND POSTERIORLY.
INFERIOR APPREHENSION
TEST/FEAGIN TEST:
PATIENT STANDS WITH THE ARM ABDUCTED TO 90º
AND ELBOW EXTENDED AND RESTING ON TOP OF
THE EXAMINER’S SHOULDER. EXAMINER CLASP
HIS/HER HANDS AROUND THE PATIENT’S HUMERUS
AND PUSHES THE HUMERUS DOWN AND FORWARD.
IN THIS SULCUS MAY ALSO BE SEEN ABOVE THE
CORACOID PROCESS.
SULCUS TEST:
PATIENT STANDS WITH ARM BY THE SIDE AND
SHOULDER MUSCLE RELAXED. THE EXAMINER
GRASPS THE PATIENT’S FOREARM BELOW THE
ELBOW AND PULLS THE ARM DISTALLY. THE
PRESENCE OF SULCUS/INDENTATION INFERIOR
TO ACROMIAN IS THE INDICATIVE.
THANK YOU

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Examination of shoulder joint

  • 1. THE SHOULDER JOINT    MAJ VM PHILIP  JUNIOR RESIDENT  ORTHOPAEDICS
  • 2.
  • 3. FUNCTIONS OF SHOULDER  PRIMARY: hand placement in various positions to accomplish the upper limb tasks  SECONDARY: 1) Suspension of the upper limb 2)Sufficient fixation for upper limb movement 3)Fulcrum for arm elevation
  • 4. SHOULDER COMPLEX  Three bones  Three joints  One pseudojoint
  • 5. 1/3 - 1/4 Diameter: 37- 55 mm Diameter: ≈ 41 mm Humeral head is half a sphere roughly articulating with one third to one fourth of the surface of glenoid fossa ball and socket
  • 6. Anatomy  Glenohumeral joint  “Ball and socket” vs “Golf ball and tee”  Very mobile  Price: instability  45% of all dislocations  Joint stability depends on multiple factors
  • 7. Glenohumeral Joint  Humeral head faces medially, posteriorly and superiorly  Glenoid :laterally,anteriorly and superiorly at rest and lateral, inferior and posterior in dependant position  Head shaft angle : 130 – 150 deg (long axis) and 30 – 40 deg retroverted in the frontal plane
  • 8. Glenohumeral Joint  GLENOID LABRUM  Dense fibro cartilage attached the glenoid fossa and joint capsule  Forms a part of articular surface  Long head of biceps: half of the fibres originate from the superior labrum  Increases joint stability (75% vertical and 56% transverse)
  • 9. Glenohumeral Joint  Joint capsule: - laterally attached to the neck of humerus - medially to the periphery of glenoid and labrum  Capsule is lax with multiple recesses  Axillary recess: inferiorly is lax and redundant permitting normal arm elevation
  • 10. Joint Capsule - Posterior View A. Acromion B. Scapular spine C. Coracohumeral ligament D. Supraspinatus muscle (cut away) E. Infraspinatus muscle (cut away) F. Teres minor muscle (cut away) G. Triceps muscle (cut away) H. Capsule
  • 11. Glenohumeral Joint: capsule  Joint capsule:  -Anteriorly reinforced by the ‘Z’ ligaments  Rotator cuff : stregthens capsule anterior, superior and posteriorly  lined by synovial membrane from glenoid labrum to neck of humerus
  • 12. Anatomy  Scapula  Glenoid  Acromion  Coracoid  Subscapular fossa  Scapular spine  Supraspinatus fossa  Infraspinatus fossa
  • 13. GLENOHUMERAL JOINT  Humerus  Anatomical neck  Greater and lesser tuberosities  IT groove: angle of wall(60° to 75°)  Tendon of long h  ead of biceps makes an abrupt right angle turn to lie in the IT groove
  • 14. GLENOHUMERAL JOINT  Surgical neck of humerus region below greater and lesser tuberosities where head meets the shaft Axillary nerve Posterior circumflex humeral artery
  • 15. Glenohumeral Joint  Joint capsule:  -Anteriorly reinforced by the ‘Z’ ligaments  Rotator cuff : stregthens capsule anterior, superior and posteriorly  lined by synovial membrane from glenoid labrum to neck of humerus
  • 16. Glenohumeral Joint  Ligaments : function in a load sharing fashion by reciprocal tightening and loosening.  Lax in mid range of motion where rotator cuffs maintain stability  Anterior aspect of GH joint: Gleno humeral ligaments(sup,middle and inf) + coraco humeral ligaments: Z ligaments
  • 17. Glenohumeral Joint : Ligaments  Superior GH ligament  Origin - 12o’ clock of glenoid rim  Direction - inferior and lateral  Insertion - anatomical neck  Function - limits external rotation and inferior translation of the humeral head with arm on the side
  • 18. Glenohumeral Joint : Ligaments  Middle GH ligament: poorly developed  Origin :2 or 3 o’ clock of glenoid rim  Direction: inferior and lateral  Insertion: anatomical neck  limits external rotation and anterior translation of the humeral head with arm in 0 to 45° of abduction
  • 19. Glenohumeral Joint : Ligaments  Inferior GH ligament complex(IGHLC)  Components: 1. Anterior band 2. Posterior band 3. Axillary pouch  Anterior band  Origin : b/w 2 and 4 o’ clock of glenoid rim Insertion : below lesser tuberosity Function : limits external rotation and inferior translation of the humeral head with arm abducted to 90°
  • 20. Glenohumeral Joint : Ligaments  Inferior GH ligament complex - Posterior band - b/w 7 and 9 o’ clock of glenoid rim - limits internal rotation in abduction - Anteror + posterior : anterior translation at 90° abduction
  • 21. IGHLC
  • 22. Glenohumeral Joint : Ligaments  Coracohumeral ligament: Functions  covers the Superior GH ligaments  fills the space b/w supraspinatus and subscapularis and complete the rotator cuff anteriorly  Ant band limits extension of GH  Post band limits flexion of GHJ  Both limit the inferior and posterior translation of humeral head 
  • 23. Glenohumeral Joint : Ligaments  Coraco acromial ligament: roof of the shoulder  From coracoid to antero inferior acromion ext into AC joints  Two bands near acromion  Prevent separation of AC jt
  • 24. Glenohumeral Joint : Ligaments  Coraco acromial arch: Ant inf acromion + coracoacromial ligament +inf ascpect of AC jt  Scaption: supraspinatus tendon passes under the arch  Scaption + int rotation : SS tendon passes under coraco acromial ligament  Scaption + ext rotation: SS tendon passes under acromion
  • 25. Glenohumeral Joint : Suprahumeral space  Boundaries: Inf : tuberosity of humerus ant med : coracoid process sup : coraco acromial arch  Structures (inf to sup) - Head of humerus - Long head of biceps tendon - Superior aspect of joint capsule - Supraspinatus,upper margins of subscapularis and infraspinatus - Subacromial-subdeltoid bursae
  • 26. Glenohumeral Joint : Suprahumeral space  Arm adducted by the side : 11 mm  Arm at 90° abduction : 5.7mm  Space is narrowest b/w 60° and 120°
  • 27. Anatomy  Rotator Cuff Muscles  S – Supraspinatus  I – Infraspinatus  T - Teres minor  S- Supscapularis
  • 28. Glenohumeral Joint : Bursae  Approx eight in shoulder complex  Subacromial Bursa: one of the largest  Two smooth serosal layers to deltoid and rotator cuff  Also connected to acromion,GT,coraco acromial ligament  Allows rotator cuff to slide easily beneath deltoid
  • 29. Glenohumeral Joint Nerve supply  Derived from C5 to C8 nerve roots embryologically  Anterior shoulder joint : axillary(C5-C6) subscapular(C5-C6) lateral pectoral(C5-C6)  Posterior shoulder joint : suprascapular(C5-C6) axillary(C5-C6)
  • 30. Glenohumeral Joint : Blood supply  Branches of Axillary artery - ant circumflex humeral - post circumflex humeral - suprascapular - circumflex scapular
  • 31. Glenohumeral Joint : Blood supply  Labrum: post cx humeral and subscapular ( capsule)  Rotator cuff: - supraspinatus : thoracoacromial - subscapularis : ant cx humeral - infraspinatus post cx humeral - teres minor suprascapular
  • 32. Glenohumeral Joint : Blood supply  Biceps :Branches of Brachial artery  Critical zones : supraspinatus and biceps relatively avascular  Supraspinatus vulnerable:  compressed by subacromial sructures  Blood supply parallel to tendon fibres, susceptible to stretch  Critical zone proximal to insertion
  • 33. Acromioclavicular Joint  Connects acromion process with lateral clavicle  Plane- synovial joint  Gliding motion occurs in all planes  Suspends upper limb from the trunk
  • 34. Acromioclavicular Joint  hyaline cartilage initially, fibrous in adolescence  10 to 50 deg inclination  Acromion faces ant, med and sup  Thin capsule ,capsular lig  AC ligament prevents posterior translation and posterior axial rotation
  • 35. Acromioclavicular Joint: ligaments  CORACOCLAVICULAR  from coracoid to inferior surface of clavicle  Two parts:  Conoid ligament  Trapezoid ligament  Vertical stability to AC jt, superior & ant translation , ant axial rotation
  • 36. Acromioclavicular Joint: ligaments  Conoid ligament  Fan shaped  Apex inferior  Medial of the two  Frontal pane  prevent coracoid movt away from clavicle
  • 37. Acromioclavicular Joint: ligaments  Trapezoid ligament  Quadrilateral sheet  From medial border of upper surface of coracoid  Runs supero laterally to the inferior surface of clavicle  Larger,longer and stronger  Plane perpendicular to conoid  Blocks medial coracoid movt
  • 38. Sternoclavicular Joint  Formed by - medial end of clavicle - claviclar notch of manubrium - first rib cartilage  Saddle/plane joint  Fibrocartilagenous articular disc  Angulated 20° posterolaterally  Lateral aspect of the joint acts as an ovoid
  • 39. Sternoclavicular Joint  In vertical: proximal end of clavicle is convex and manubrium concave  In AP view: proximal clavicle is concave and the manubrium convex
  • 40. Sternoclavicular Joint (cont’d)  Articular disk - attached to the upper and posterior end of clavicle and cartilage of first rib - thick in perphery - divides the joint into two unequal parts - more movt occurs b/w clavicle and disk - prevents medial displacement of clavicle -
  • 41. Sternoclavicular Joint : ligaments  Anterior Sternoclavicular  Posterior Sternoclavicular  Interclavicular  Costoclavicular  Ant sternoclavicular  Covers ant aspect  Runs obliquely from clavicle to sternum
  • 42. Sternoclavicular Joint (cont’d)  Post SC ligaments  Posterior aspect of jt  Runs down and medially  Interclavicular ligaments  Connects the superomedial sternal ends of both clavicles with the capsular ligaments and upper sternum
  • 43. Scapulothoracic Articulation  Not a joint anatomically  Scapula moves over the rib cage of the thorax  Not directly attached  Connected indirectly via the clavicle and several muscles  Provides motion and flexibility to the body  15-18 cms of translation at ST jt normally
  • 44.
  • 45. Anterior Shoulder Muscles  Coracobrachialis  Pectoralis Major  Subscapularis  Biceps Brachii
  • 46. Biceps Brachii  Origin  Short head: coracoid process of scapula Long head: supraglenoid tubercle of scapula  Insertion Tuberosity of radius  Action Flexion of the elbow and shoulder, Supinates forearm  ***the long head is the “5th rotator cuff”
  • 47.
  • 48. Coracobrachialis  O: Coracoid process  I: Anteromedial surface of midshaft of humerus  Actions: (WEAK!)  Flexion  Adduction of the shoulder
  • 49.
  • 50. Pectoralis Major  Origin:  Medial two-thirds of clavicle  Sternum  Insertion: intertubercular groove  Actions  Upper fibers (Clavicular) • Flexion • Horizontal Adduction  Lower fibers (Sternal) • Internal/medial Rotation • Horizontal adduction
  • 51. Subscapularis  O: Subscapular fossa  I: Lesser tubercle and crest of humerus  Actions:  Internal Rotation  Stabilization  Anterior Rotator Cuff Muscle.
  • 52. Superior Shoulder Muscles  Deltoid  Supraspinatus
  • 53. Deltoid  Origin  Lateral 1/3 of clavicle (Anterior fibers)  Acromion process (Middle fibers)  Spine of scapula (Posterior fibers)  Insertion – deltoid tuberosity Actions Anterior –Flexion Middle – Abduction Posterior –Extension
  • 54.
  • 55.
  • 56. Inferior Shoulder Muscles  Latissimus Dorsi  Teres Major
  • 57. Latissimus Dorsi  O: Spinous process of lower 6 thoracic and all lumbar and sacral vertebrae; iliac crest  I: Intertubercular groove  Actions:  Adduction  Internal Rotation  Extension
  • 58.
  • 59.
  • 60. Teres Major  O: Inferior angle of scapula  I: Intertubercular groove  Actions:  Adduction  Internal rotation  “Lats little helper”
  • 61.
  • 62. Posterior Shoulder Muscles  Infraspinatus  Teres Minor  Triceps Brachii
  • 63. Triceps Brachii  Origin Long head: infraglenoid tubercle of scapula Lateral head: posterior surface of humerus, Medial head: posterior surface of humerus Insertion Olecranon process of ulna  Action Chief extensor of elbow (long head extends the shoulder)
  • 64. Infraspinatus  O: Infraspinous fossa  I: Greater tubercle  Actions:  External rotation  Stabilization  Posterior Rotator Cuff Muscle  Second most commonly injured rotator cuff muscle
  • 65. Teres Minor  O: lateral border of scapula  I: Greater tubercle  Actions:  External rotation  Stabilization  Posterior Rotator Cuff Muscle
  • 66. Trapezius  Origin occipital bone, nuchal ligament, and spinous processes of C7 - T12 vertebrae  Insertion Lateral third of clavicle, acromion, and spine of scapula  Action  superior fibers elevate,  middle fibers retract,  inferior fibers depress scapula;
  • 67. Levator Scapula  Origin C1 - C4 vertebrae  Insertion Superior angle  Action Elevates scapula
  • 68. Rhomboid major and minor  Origin Minor: spinous processes of C7 and T1 vertebrae Major: spinous processes of T2 - T5 vertebrae  Insertion Medial border of scapula  Action Retract scapula
  • 69. Serratus Anterior  Origin the eight upper frontal ribs  Insertion lateral border of scapula  Action protracts scapula
  • 70. Glenohumeral Joint: Biomechanics  Complex interaction amongst the joints in a smooth harmonious movt  G-H :: ball on a seal’s nose  Greatest ROM  2:1 at gh:st joints
  • 71. Glenohumeral Joint: Biomechanics  Three DOF: - flexion/extension - abduction/adduction - internal/ext rotation
  • 72. Glenohumeral Joint:biomechanics  Scapula: stable base  Attaches indirectly to the rib cage • Anteriorly concave and glides over the convex rib • Located between the second and seventh ribs • Position : 30 degrees (frontal) 3 degree superior
  • 74. Glenohumeral Joint  Scaption : arm elevation occuring at 30 to 45 degrees anterior to the frontal plane
  • 75. Glenohumeral Joint: Biomechanics  Static shoulder stabilisation - requires very little muscle support - provided by trapezius and supraspinatus - vertical stability:glenoid facing up by trapezius - inferior stability: intra articular pressure and adhesion/cohesion of articular surfaces - anatomic curvature of humerus - glenoid labrum - negative intraarticular pressure
  • 76. Glenohumeral Joint: Biomechanics  Dynamic shoulder stabilisation - requires complex factors Major dynamic stabilisers - long head of triceps and biceps - humeral head max stabilisation: subscapularis Posterior restraints - <90° abduction : post capsule - 90° abduction : IGHLC
  • 77. Scapulohumeral Rhythm  Describes the movement relationship between the scapula and humerus to maintain angle b/w scapula and humerus <30°  First 30° of shoulder joint motion pure GH motion  After that, for every 2° of shoulder flexion or abduction, the scapula rotates 1°  2:1 ratio → scapulohumeral rhythm  Full abduction: glenoid completely support humerus
  • 78.  0-80° →more humeral motion  80-140° → more scapular motion  140-170° →neighbouring joints
  • 79.
  • 80. Scapulothoracic Articulation:Biomechanics  0-90°=60°+30° at GH and ST - St movt = 20-25°of clavicular elevation at SC jt 05-10° of upward rotation at AC jt  90 to 180° = 60° of GH movt + 30° ST movt - St movt = 05-10°of clavicular elevation at SC jt 20-25° of upward rotation at AC jt
  • 81. Glenohumeral Joint:Biomechanics  Close Pack position : 90° abduction and full external rotation  Open Pack position : 55°abduction with 30° horizontal adduction  Zero position : 0 degree abduction,12° flexion,10° external rotn  Capsular pattern-Ext rotn:abduction: internal rotation = 3:2:1
  • 82. Acromioclavicular Joint:Biomechanics  Three types: rotation,spin,glide  Rotation: - AP rotatation - superoinferior AP rotation: longitudinal  Through SC and AC jts  30 to 50 deg -mostly SC
  • 83. Acromioclavicular Joint:Biomechanics  Protraction:ant movt of acromial end of clavicle  Retraction: post movt of acromial end
  • 84. Acromioclavicular Joint: Biomechanics  Close Packed position  90° GH joint abduction  Open Packed position  Arm is on the side  Clavicle is 15° retracted and 2° elevated  Capsular pattern pain in extremes of horizontal adduction and full elevation
  • 85. Sternoclavicular Joint: Biomechanics  Two types of translations A-P & sup-inf (2:1) allowing 1. Elevation/depression 2. Protraction/retraction 3. Backward /forward rotation  Elevation and depression - 35 to 40 deg of elevation - 15 deg depression
  • 86. Sternoclavicular Joint: Biomechanics  Protraction/retraction - 15 to 20 deg both - on protraction the concave surface of clavicle moves on convex sternum producing an anterior glide of clavicle and anterior rotation of lateral clavicle - on retraction medial clavicle articulates with flat surface and posterior rotation of lateral end
  • 87. Sternoclavicular Joint: Biomechanics  Rotation spin of the clavicle on manubrium 40° anterior and 5° posterior rotation  Close Packed position maximum arm elevation and protraction  Open Packed position arm by the side (postulated)  Capsular pattern full elevation and horizontal adduction
  • 88. Scapulothoracic Articulation:Biomechanics  scapula has five degrees of freedom for movement on the thorax:  two translations and rotate in three planes around three different axes.  translations: - Elevation /Depression - retraction &Protraction
  • 89.  Rotations: - scapular winging . - scapular tipping - up & down rotation
  • 90. Rotational Movement of the Scapula  All three parts work together (synergists) to retract the scapula
  • 91. Rotational Movement of the Scapula (cont’d)  Middle trapezius - prime mover  Upper and lower trapezius are antagonistic in elevation/ depression  Upper and lower trapezius are agonistic in upward rotation
  • 92. Clinical Examination  History  Inspection  Palpation  Range of Motion  Measurements  Special Tests
  • 93.
  • 94. History - PainHistory - Pain  Type and location of pain or symptoms  Onset of pain (traumatic, insidious)Onset of pain (traumatic, insidious)  Location of painLocation of pain  Alleviating/Aggravating factorsAlleviating/Aggravating factors  Night painNight pain  Pain/weakness overhead activitiesPain/weakness overhead activities
  • 95. Pain  Typically pain of gleno-humeral origin is felt in the upper arm, often at the insertion of the deltoid.  Severe shoulder problems can cause pain to radiate as far as the radial side of the wrist.  Impingement/rotator cuff pathology:anterior/lateral shoulder pain aggrevated with overhead activities
  • 96.
  • 97. Pain  The shoulder is derived from the fifth cervical segment and therefore refers pain into the C5 dermatome.  The acromio-clavicular joint is a C4 structure and refers pain into the C4 dermatome.
  • 98. Pain  The shoulder is deep and proximal in the C5 dermatome, hence it can potentially refer pain a great distance.  Conversely the acromio-clavicular joint is a superficial structure at the distal end of the dermatome causing it to give rise to accurate, local pain
  • 99.
  • 100.
  • 101.
  • 102. Physical Exam – Inspection  Front & Back  Height of shoulder & scapulae  Asymmetry  Obvious deformity  Ecchymosis  Muscle atrophy  Supraspinatus  Infraspinatus  Deltoid
  • 103. Physical Exam –Inspection  Front & Back  Height of shoulder & scapulae  Asymmetry  Obvious deformity  Ecchymosis  Muscle atrophy  Supraspinatus  Infraspinatus  Deltoid
  • 104. Physical Exam – Inspection  Front & Back  Height of shoulder & scapulae  Asymmetry  Obvious deformity  Ecchymosis  Muscle atrophy  Supraspinatus  Infraspinatus  Deltoid
  • 105. Palpation  At rest & with movement  Bony structures  Joints  Soft tissues
  • 106. Palpation  Surface Anatomy (Anterior)  Clavicle  SC Joint  Acromion process  AC Joint  GH joint  Coracoid process  LT  GT  Subacromial bursa  Pectoralis major  Trapezius  Biceps (long head) AC joint SC joint biceps
  • 107. Palpation  Surface Anatomy (Posterior)  Scapular spine  Acromion process  Supraspinatus  Infraspinatus  Teres Minor  Trapezius  Latissumus dorsi  Scapula • Inferior angle • Medial border Supraspinatus Infraspinatus Inferior angle of scapula
  • 108. Range of Motion  Forward flexion: 160 - 180°  Extension: 40 - 60°  Abduction: 180◦  Adduction: 45 °  External rotation: 80 - 90 °  Internal rotation: 60 - 90 °
  • 109. Range of Motion  Scapular dyskinesis (Scapulothoracic dysfuntion)  Compare scapular motion through ROM on both sides  Wall push-ups  Symmetrical  Smooth  No or minimal winging
  • 110. Strength Testing  External rotation  Tests RTC muscles that ER the shoulder • Infraspinatus • Teres minor  Arms at the sides  Elbows flexed to 90 degrees  Externally rotates arms against resistance
  • 111. Strength Testing  Internal rotation  Tests RTC muscle that IR the shoulder • Subscapularis  Arms at the sides  Elbows flexed to 90 degrees  Internally rotates arms against resistance  Subscapularis Lift-Off Test  Other techniques
  • 112. Strength Testing  Supraspinatus “Empty can" test Jobe’s Test Tests Supraspinatus Attempt to isolate from deltoid
  • 113. Special Tests  Impingement  Rotator Cuff Integrity  Labrum and Biceps  AC (SC) Joints  Instability
  • 114. :TESTS FOR ROTATOR CUFF/IMPING MENT TESTS FOR ACROMIOCLAV ICULAR JOINT TESTS FOR BICEP TENDON TESTS FOR INSTABILITY  Neer impingment test  Hawkins kennedy test  Empty can test  Drop arm test  Lift off.Test  Infraspinatus test  Spring back test  Teres minor  Painful arc  Forced adduction test  Forced adduction test in hanging arm  Duga’s test 1. Speed test 2. Yergason test 3. Bicep tendon with transverse humeral ligament test 1. Anterior apprehension test 2. Posterior apprehension test 3. Anterior posterior drawer test 4. Inferior instability test 5. Sulcus test
  • 116. TESTS FOR ROTATOR CUFF AND IMPINGMENT SYNDROME
  • 117. IMPINGEMENT: Primary impingment Secondary impingment Occur because of degenerative changes to the rotator cuff,the acromian process,the coracoid process and anterior tissues from stress overload. Occurs due to problem with muscle dynamics with an upset in the normal force couple action leading to muscle imbalance and abnormal movement patterns at both the glenohumeral joint and the scapulothoracic articulation. Impingement is primary cause of pain. It is secondary to altered muscle dynamics. Occurs mostly in 40+ age group people. Occurs in young patients.(15- 35years old) It is said to be intrinsic when rotator cuff degeneration occurs and extrinsic when the shape of the acromian and degeneration of the coracoacromial ligament occurs. Commonly seen with joint instability.
  • 118. NEER IMPINGMENT TEST: PATIENT’S AFFECTED ARM IS PASSIVELY AND FORCIBLY FULLY ELEVATED IN THE SCAPULAR PLANE WITH THE ARM MEDIALLY ROTATED BY THE EXAMINER. •This passive stress causes “jamming of the greater tuberosity against the anteroinferior border of the acromian. •The patient’s face shows pain reflecting a +ve test.
  • 119. HAWKIN’S KENNEDY IMPINGMENT TEST: PATIENT STANDS / SITS WHILE THE EXAMINER FORWARD FLEXS THE ARM TO 90º AND FORCIBLY MEDIALLY ROTATES THE SHOULDER. •This movement pushes the supraspinatus tendon against the anterior surface of the coracoacromial ligament and coracoid process. •Pain indicates +ve test.
  • 120. THIS TEST MAY BE PERFORMED WITH THE PATIENT STANDING OR SEATED.WITH THE ELBOW EXTENDED, THE PATIENT’S ARM IS HELD AT 90° OF ABDUCTION,30° OF HORIZONTAL FLEXION, AND IN INTERNAL ROTATION (WITH THUMB FACING DOWN). THE EXAMINER EXERTS PRESSURE ON THE UPPER ARM DURING THE ABDUCTION AND HORIZONTAL FLEXION MOTION. •When this test elicits severe pain and the patient is unable to hold his or her arm abducted 90° against gravity, this is called a positive empty can test/supraspinatus tendinitis. •The superior portions of the rotator cuff (supraspinatus) are particularly assessed in internal rotation (with the thumb down), and the •anterior portions in external rotation.
  • 121. DROP ARM(CODMAN’S)TEST: THE PATIENT IS SEATED, AND THE EXAMINER PASSIVELY ABDUCTS THE PATIENT’S EXTENDED ARM APPROXIMATELY 120°. THE PATIENT IS ASKED TO HOLD THE ARM IN THIS POSITION WITHOUT SUPPORT AND THEN SLOWLY ALLOW IT TO DROP. Weakness in maintaining the position of the arm, with or without pain, or sudden dropping of the arm suggests a rotator cuff lesion. Most often this is due to a defect in the supraspinatus.
  • 122. APLEY’S SCRTCH TEST: THE SEATED PATIENT IS ASKED TO TOUCH THE CONTRALATERAL SUPERIOR MEDIAL CORNER OF THE SCAPULA WITH THE INDEX FINGER. Pain elicited in the rotator cuff and failure to reach the scapula because of restricted mobility in external rotation and abduction indicate rotator cuff pathology (most probably involving the supraspinatus).
  • 123. YOCUM TEST  LIFT PATIENT’S ELBOW TO SHOULDER HEIGHT WITH ARM RESTING ON THE NORMAL SHOULDER
  • 124. HORNBLOWER’S SIGN (PATTE TEST)  determines the strength of the teres minor.   The examiner elevates the patient’s arm to 90 degrees in the scapular plane. The therapist then flexes the elbow to 90 degrees, and the patient is asked to laterally rotate the shoulder. A positive test occurs with weakness and/or pain.
  • 125. SUBSCAPULARIS TEST/LIFT OFF TEST: PATIENT IN STANDING POSITION PLACES THE DORSUM OF THE HAND ON THE BACK. THE PATIENT THEN LIFTS THE HAND AWAY FROM THE BACK. IF PATIENT IS ABLE TO DO THEN LOAD PUSHING ON HAND IS DONE BY THE EXAMINER TO CHECK THE STRENGH. •A patient with a subscapularis tear will be unable to do this. •Abnormal motion in the scapula during the test may indicate scapular instability.
  • 126. COMPARATIVE TESTING OF BOTH SIDES IS BEST. THE PATIENT’S ARMS SHOULD HANG RELAXED WITH THE ELBOWS FLEXED 90° BUT NOT QUITE TOUCHING THE TRUNK. THE EXAMINER PLACES HIS OR HER PALMS ON THE DORSUM OF EACH OF THE PATIENT’S HANDS AND THEN ASKS THE PATIENT TO EXTERNALLY ROTATE BOTH FOREARMS AGAINST THE RESISTANCE OF THE EXAMINER’S HANDS. Pain or weakness in external rotation indicates a disorder of the infraspinatus (external rotator). .
  • 127.  SPRING BACK TEST:Infraspinatus Patient either in sitting or standing hold the elbow in flexion at 90º by the side. Examiner passively bring the shoulder to 90º abduction and laterally rotate to the end range and ask the patient to hold the arm to this position. For +ve test of infraspinatus weakness/lesion patient cannot hold the position and hand spring back anteriorly.
  • 128. TERES MAJOR TEST: THE PATIENT IS STANDING AND RELAXED. THE EXAMINER ASSESSES THE POSITION OF THE PATIENT’S HANDS FROM BEHIND. THE TERES MAJOR IS AN INTERNAL ROTATOR. WHERE A CONTRACTURE IS PRESENT, THE PALM OF THE AFFECTED HAND WILL FACE BACKWARD COMPARED WITH THE CONTRALATERAL HAND.
  • 129. LABRAL TEARS  Clunk test  Crank Test  O Brien’s Test  Compression-rotation test akin to Apley’s grinding  Biceps load test
  • 130. CLUNK TEST  Patient supine, examiner puts hand on the posterior aspect of the shoulder, other hand hold the humerus above the elbow and abducts the arm over the head. Then pushing anteriorly with the hand under the shoulder and rotating the humerus laterally with the other hand, feel for a grind or clunk which may indicate a tear of the labrum.
  • 131. O’BRIEN’S TEST  Labral, AC, or biceps pathology  Arm flexed to 90°  Arm cross-arm adducted 10-15°  Elbow extended  Max pronation  Resist downward force  Positive test if painful  Beware location of pain  AC  Biceps
  • 132. LABRAL TEAR: CRANK TEST  Abduct arm to 90-120°  Stabilize shoulder  Elbow secured with one hand  Axially load with ER / IR at shoulder  Positive test: audible or painful click / catch / grind
  • 134. PAINFUL ARC: THE PATIENT’S ARM IS PASSIVELY AND ACTIVELY ABDUCTED FROM THE REST POSITION ALONGSIDE THE TRUNK. PAIN IN THE ACROMIOCLAVICULAR JOINT OCCURS BETWEEN 140°AND 180° OF ABDUCTION. IN AN IMPINGEMENT SYNDROME OR A ROTATOR CUFF TEAR, BY COMPARISON, PAIN SYMPTOMS WILL OCCUR BETWEEN 70°AND 120°. In the evaluation of the active and passive ranges of motion, the patient can often avoid the painful arc by externally rotating the arm while abducting it. This increases the clearance between the acromion and the diseased tendinous portion of the rotator cuff, avoiding impingement in the range between 70° and 120°.
  • 135. THE NORMAL SIDE. FORCED ADDUCTION TEST ON HANGING ARM: THE EXAMINER GRASPS THE UPPER ARM OF THE AFFECTED SIDE WITH ONE HAND WHILE THE OTHER HAND RESTS ON THE CONTRALATERAL SHOULDER AND IMMOBILIZES THE SHOULDER GIRDLE. THEN THE EXAMINER FORCIBLY ADDUCTS THE HANGING AFFECTED ARM BEHIND THE PATIENT’S BACK AGAINST THE PATIENT’S RESISTANCE. Pain across the anterior aspect of the shoulder suggests acromioclavicular joint disease or subacromial impingement.
  • 136. DUGA’S TEST: THE PATIENT IS SEATED OR STANDING AND TOUCHES THE CONTRALATERAL SHOULDER WITH THE HAND OF THE 90°-FLEXED ARM OF THE AFFECTED SIDE THEN ATTEMPT TO LOWER THE ELBOW TO THE CHEST IS MADE. Acromioclavicular joint pain suggests joint disease (osteoarthritis, instability, disk injury, or infection). A differential diagnosis must exclude anterior subacromial impingement
  • 137. BICEP TENDON TEST THE CLOSE ANATOMIC PROXIMITY OF THE INTRAARTICULAR PORTION OF THE TENDON TO THE CORACOACROMIAL ARCH PREDISPOSES IT TO INVOLVEMENT IN DEGENERATIVE PROCESSES IN THE SUBACROMIAL SPACE. A ROTATOR CUFF TEAR IS OFTEN ACCOMPANIED BY A RUPTURE OR INJURIES OF THE BICEPS TENDON.
  • 138. SPEED TEST: IN SITTING THE EXAMINER RESISTS SHOULDER FORWARD FLEXION BY THE PATIENT WHILE THE PATIENT’S FOREARM IS IN SUPINATION. PAIN IN THE REGION OF THE BICIPITAL GROOVE SUGGESTS A DISORDER OF THE LONG HEAD OF THE BICEPS TENDON.
  • 139. YERGASON TEST: WITH THE PATIENT’S ELBOW FLEXED TO 90º AND STABILIZED AGAINST THORAX AND WITH FOREARM PRONATED, THE EXAMINER RESISTS SUPINATION WHILE THE PATIENT ALSO LATERALLY ROTATES THE ARM AGAINST RESISTANCE. DURING THIS MOVEMENT WHEN THE TENDON IS FELT IN GROOVE AS “POP OUT” . •Pain in the bicipital groove is a sign of a lesion of the biceps tendon, its tendon sheath, or its ligamentous connection via the •transverse ligament. •The typical provoked pain can be increased by pressing on the tendon in the bicipital groove.
  • 140. BICEP TENDINITIS WITH TRANSVERSE HUMERAL LIGAMENT TEST: THE PATIENT IS SEATED WITH THE ARM ABDUCTED 90°, INTERNALLY ROTATED, AND EXTENDED AT THE ELBOW. FROM THIS POSITION, THE EXAMINER EXTERNALLY ROTATES THE ARM WHILE PALPATING THE BICIPITAL GROOVE TO VERIFY WHETHER THE TENDON SNAPS. •In the presence of ligamentous insufficiency, this motion will cause the biceps tendon to spontaneously displace out of the bicipital groove. •Pain reported without displacement suggests biceps •tendinitis.
  • 141. INSTABILITY TESTS SHOULDER PAIN MAY BE ATTRIBUTABLE TO AN UNSTABLE SHOULDER. USUALLY HISTORY OF A PERIOD OF INTENSIVE SHOULDER USE (SUCH AS COMPETITIVE SPORTS), AN EPISODE OF REPEATED MINOR TRAUMA (OVERHEAD USE), OR GENERALIZED LIGAMENT LAXITY. BOTH YOUNG ATHLETES AND INACTIVE PERSONS ARE AFFECTED, MEN AND WOMEN ALIKE.
  • 142. ANTERIOR APPREHENSION TEST: PATIENT LIE SUPINE OR IN SITTING . ARM IS ABDUCTED TO 90º WITH OTHER HAND ON THE HUMERAL HEAD AND LATERALLY ROTATED SLOWLY BY THE EXAMINER. WHILE PERFORMING PATIENT’S EXPRESSIONS ARE NOTED FOR APPREHENSION/FURTHER RESISTENCE TO ROTATION. . WITH THE GUIDING HAND, THE EXAMINER PRESSES THE HUMERAL HEAD IN AN ANTERIOR AND INFERIOR DIRECTION Shoulder pain with reflexive muscle tensing is a sign of an anterior instability syndrome. This muscle tension is an attempt by the patient to prevent imminent subluxation or dislocation of the humeral head.
  • 143. SURPRISE TEST  Similar to apprehension test  But at max ext rotation the posterior force on the humerus is removed and we look for apprehension  Most accurate single test for anterior instability
  • 144. ROCKWOOD TEST  It is important to know that at 45° of abduction, the test primarily evaluates the medial glenohumeral ligament and the subscapularis tendon. At or above 90° of abduction, the stabilizing effect of the subscapularis is neutralized and the test primarily evaluates the inferior glenohumeral ligament.
  • 145. POSTERIOR APPREHENSION TEST: PATIENT LIES SUPINE OR IN SITTING POSITION AND EXAMINER ABDUCTS ARM IN SCAPULAR PLNE TO 90º WHILE STABILIZING THE SCAPULA WITH OTHER HAND. EXAMINER THEN APPLIES A POSTERIOR FORCE ON THE ELBOW AND MOVES THE ARM IN ADDUCTION AND MEDIALLY ROTATION.
  • 146. ANTERIOR AND POSTERIOR DRAWER TEST: THE PATIENT IS SEATED. THE EXAMINER STANDS BEHIND THE PATIENT. TO EVALUATE THE RIGHT SHOULDER, THE EXAMINER GRASPS THE PATIENT’S SHOULDER WITH THE LEFT HAND TO STABILIZE THE CLAVICLE AND SUPERIOR MARGIN OF THE SCAPULA WHILE USING THE RIGHT HAND TO MOVE THE HUMERAL HEAD ANTERIORLY AND POSTERIORLY.
  • 147. INFERIOR APPREHENSION TEST/FEAGIN TEST: PATIENT STANDS WITH THE ARM ABDUCTED TO 90º AND ELBOW EXTENDED AND RESTING ON TOP OF THE EXAMINER’S SHOULDER. EXAMINER CLASP HIS/HER HANDS AROUND THE PATIENT’S HUMERUS AND PUSHES THE HUMERUS DOWN AND FORWARD. IN THIS SULCUS MAY ALSO BE SEEN ABOVE THE CORACOID PROCESS.
  • 148. SULCUS TEST: PATIENT STANDS WITH ARM BY THE SIDE AND SHOULDER MUSCLE RELAXED. THE EXAMINER GRASPS THE PATIENT’S FOREARM BELOW THE ELBOW AND PULLS THE ARM DISTALLY. THE PRESENCE OF SULCUS/INDENTATION INFERIOR TO ACROMIAN IS THE INDICATIVE.