Shoulder Anatomy
Coracobrachialis, Brachialis, and Biceps Brachii are innervated by what nerve?
What is Musculocutaneous nerve
Activity limitations of SLAP lesion, Bankart Lesion and Hill-Sachs Lesion
Difficulty throwing
Difficulty reaching for a glass of water
Overhead movements IADLS
demonstrate how you would perform shoulder extension goni
Position: Prone (Head turned away)
Range: 0-60 degrees
End Feel: Firm
Axis: Lateral Acromion Process
Moveable part: Midline of humerus
Equation for Sensitivity
Sensitivity = a/a+c
Ability of the test to obtain a positive test when the target condition is really present (True positive)
Sensitivity (SnNOUT)
List the shoulder joints (4)
Glenohumeral Joint
Acromioclavicular Joint
Sternoclavicular Joint
Scapulothoracic Junction
Compression of or tension imposed on neurovascular structures of the brachial plexus, diagnosed by Roos or Adson's
What is Thoracic Outlet Syndrome
demonstrate MMT of shoulder abduction
AG: Seated
GM: Supine
Stabilize: Scapula
Observe: pt abducts shoulder at 90 degrees , Pt palm remains down.
Resist at: distal end of the humerus (push as to ADduction)
Muscles involved: Middle Deltoid and Supraspinatus
Equation for specificity
Specificity = d/b+d
Ability of the test to obtain a negative test when the condition is really absent. (True negative)
Specificity (SpPIN)
innervated by the lower subscapular nerve
actions: shoulder add, extension, IR
does not touch humerus
what muscle?
teres major
What disorder?
Inflammation and scarring of joint capsule in a capsular pattern (external rotation > abduction > internal rotation); collagen fibers of capsule adheres to surrounding structures
What is Adhesive Capsulitis
Equation for PPV
Positive predictive value (PPV or PV+)
PPV = a/a + b
PPV estimates the probability that the person who tests positive actually has the disease
Name one of the superficial/deep (extrinsic) and intrinsic muscles of the shoulder
Superficial extrinsic muscles (thoracoappendicular):
1. Latissimus Dorsi: shoulder adduction, extension, and internal rotation
2. Trapezius: scapular upward rotation
B. Deep extrinsic muscles (thoracoappendicular):
1. Levator Scapulae: scapular elevation & downward rotation
2. Rhomboid Major: scapular retraction & downward rotation
3. Rhomboid Minor: scapular retraction & downward rotation
4. Serratus Anterior: scapular protraction & upward rotation
C. Intrinsic muscles (scapulohumeral):
1. Deltoid: shoulder flexion & internal rotation > abduction & extension
2. *Infraspinatus: shoulder external rotation
3. *Supraspinatus: shoulder abduction > external rotation
4. *Subscapularis: shoulder internal rotation
5. Teres Major: shoulder adduction, extension, internal rotation
6. *Teres Minor: shoulder external rotation
Name the muscles of the rotator cuff
Bonus: name a special test for rotator cuff!
What is subscapularis, teres minor, supraspinatus, and infraspinatus
Lift-Off Test (Gerber's Test)
Equation for negative predictive value
Negative predictive value (NPV or PV-)
NPV estimates the probability that the person who tests negative is actually disease free.
NPV = d/c + d
brachial plexus!
What cords make up the median nerve?
lateral and medial cords
What disorder?
Failure of the non-contractile and/or contractile tissue to provide stabilization to the GH joint; presence of laxity/weakness; humeral head is no longer in appropriate alignment at rest and/or during activity.
Non-contractile Tissue Structures: GH capsule; GH ligaments (superior, middle, inferior)
What is glenohumeral instability
do we got this