Shoulder Flashcards
Posterior drawer test/Posterior load and shift test
- Position
- Mistakes with testing
Position: 90 deg abd in scapular plane
Mistakes: testing in coronal plane and direct posterior glide instead of posterolateral motion
Testing IR passively
- Position
Coronal plane in supine with posterior translation along coracoid (anterior aspect) and shoulder
IR ROM stretching position for high posterior capsule strain
30 deg shoulder elevation in scapular plane (scaption)
6 types of synovial joints
- Pivot 2. Ball and Socket 3. Plane 4. Hinge 5. Condyloid 6. Saddle
AC joint ligaments (3)
- Acromioclavicular 2. Coracoacromial 3. Coracoclavicular (conoid, trapezoid)
Glenohumeral ligaments (3)
- Superior 2. Middle 3. Inferior
Pectoral region muscles (4)
Pectoralis major and minor, serratus anterior, subclavius
Pec major
A, F, I
Attachment: anterior medial half of clavicle; sternum, costal cartilages of ribs 1-6; anterior layer of rectus sheath; greater tubercle of humerus
Innervation: lateral pectoral n. to clavicular head (C5-7); medial pectoral n. to sternal head (C8, T1)
Subcalvius
A, F, I, AS
A: clavicle subclavian groove; origin: first rib
F: depression of clavicle elevation, elevation of 1st rib
I: subclavian n.
AS: thoracoacomial trunk, clavicular branch
Serratus Anterior
A, F, I, AS
A: 2nd<>9th ribs (origin) costal aspect of medial margin of scapula (insertion)
F: protracts/stabilizes scapula, assist with upward rotation
I: long thoracic n. (C5-C7)
AS: lateral thoracic a., superior thoracic a. (upper part), thoracodorsal a. (lower part)
Upper brachial plexus injury MOIs and presentation
MOIs: 1. birthing traction on neck 2. fall on neck
Presentation: dislocated look of shoulder
Lower brachial plexus injury MOIs and presentation
MOIs: 1. hanging from branch/ladder with a fall 2. birthing traction on baby’s arm; claw hand with radial n. finger extension deficit
Sections of brachial plexus
Roots, Trunks, Divisions, Cords, Terminal branches
Dorsal scapular n.
- root(s)
- innervates
- C5
- Rhomboids and levator scapulae muscles
Long thoracic n.
- root(s)
- innervates
- C5-7
- SA muscle
Suprascapular n.
- root(s)
- direction/location
- innervates
- C5-6
- passes through scapular notch
- supraspinatus, infrapsinatus, and shoulder joint
N. to the subclavius
roots
innervates
- C5-6
- Subclavius and slips to SCJ
Median n. branches in arm? muscles innervated (general) cutaneous innervation area entrapment?
No branches in arm
Forearm and hand muscles
cutaneous distribution in hand
Commonly entrapped