2- Shoulder & Neck Flashcards
(31 cards)
List 4 internal rotators of the shoulder. ๐๐ MOCK
- Subscapularis (upper and lower subscapular nerves, posterior cord, C5,6)
- Pectoralis major (lateral and medial pectoral nerves, med and la cord, C5-T1)
- Teres major (lower subscapular nerves, posterior cord, upper trunk, C5, 6)
- Latissimus dorsi (thoracodorsal nerve, posterior cord, C6, 7, 8)
What muscles are considered the primary scapular stabilizers? ๐๐ Dr. Jamal
List exercises that are used to train and strengthen them
- Levator Scapula: Shrugs, press ups
- Trapezius: Scapular rotation, shrugs
- Rhomboids: Rows, Prone arm lifts
- Teres Major: Pull Down
- Serratus anterior: Push up, punches
PMR Secrets 3rd Edition Chapter 43 Shoulder pg342
Describe the importance of the scapula in shoulder function and rehabilitation.
The scapula is the platform of glenohumeral articulation and motion
After shoulder injury, serratus anterior and lower trapezius are reflexively inhibited, thus destabelizing the platform, producing retracted and downward rotation of scapula, which exacerbate shoulder pathology (impingement and rotator cuff disease).
Neuromuscular reeducation of the serratus anterior and lower trapezius and then strengthening are the initial rehabilitation steps for many shoulder disorders
PMR Secrets 3rd Edition Chapter 43 Shoulder pg342
Is posture a factor in evaluation shoulder pain?
Yes, exaggerated thoracic kyphosis causes scapula to rotate downward making impingement more possible
PMR Secrets 3rd Edition Chapter 43 Shoulder pg342
Name the three most common anatomic structures of the shoulder involved in shoulder impingement syndrome.
SUBACROMIAL SPACE
- Subacromial bursa
- Biceps tendon
- Rotator cuff (most commonly the supraspinatus)
Cuccurollo 4th Edition Chapter 4 MSK pg163-167
What is the mechanism of โdrop arm testโ
Patient cannot actively abduct his arm, passive abduction to horizontal level can be briefly held by deltoid muscle, but the arm drops gradually +/- minimal wieght.
PMR Secrets 3rd Edition Chapter 43 Shoulder pg343
Mention one test to determine the presence of a complete rotate cuff tear
In complete tear, active external rotation of the arm is not possible.
PMR Secrets 3rd Edition Chapter 43 Shoulder pg343
Describe common radiographic findings after a traumatic anterior shoulder dislocation ๐๐
- Bankart lesion: Injury and detachment of anterior inferior glenoid labrum
- Bony Bankart: fracture of anterior interior glenoid rim
- Hill Sachs lesion: compression fracture of posteriolateral aspect of humeral head
PMR Secrets 3rd Edition Chapter 43 Shoulder pg344
Describe the two types of shoulder impingement ๐๐ Dr. Jamal
Primary outlet impingement โ Extrinsic compression
- Hooked acromion
- Subacromion osteophyte
- Thick coracoacromial ligament
- Thoracic kyphosis
- Protracted and downward rotated scapula
Secondary (internal or glenoid) impingement โ Intrinsic compression
- Overhead throwing athletes, related to shoulder stability
PMR Secrets 3rd Edition Chapter 43 Shoulder pg344
What are the mechanism, diagnosis and management of shoulder subluxation ๐๐
Mechanism
- Glenohumeral capsule โ Injury or laxity
- Rotator cuff weakness โ Stroke
Management
- Positioning to avoid downward traction
- Increase supraspinatous muscle contraction mechanically or electrically
PMR Secrets 3rd Edition Chapter 43 Shoulder pg345
What is the optimum treatment of a frozen shoulder? ๐๐
NON-PHARMA
- Avoid splinting
- Early mobilization with pendulum exercises
- Aggressive passive then active-assisted range of motion
- Daily stretches 2-3 times
PHARMA
- Medication for pain relief prior to stretching
- NSAID
- Oral steroid
- Intraarticular injection
SURGICAL
- Manipulation under anasthesia
- Surgical release of adhesion
PMR Secrets 3rd Edition Chapter 43 Shoulder pg346
Suggest a convenient way for initiating active-passive shoulder movement
Pendulum (Codmanโs) exercises: patient bend forward, arm pendular position and body actively moving to passively move the arm.
PMR Secrets 3rd Edition Chapter 43 Shoulder pg349
Contracture management in any patient. 4 marks. ๐๐
Non-Pharmacological
- Passive ROM and stretching exercises
- Proper positioning
- Maintain the maximally corrected position with rigid AFO
- Effective management of spasticity
Surgical
- Tenotomy
- Tendon-lengthening
Anatomical Classification of Contractures List 3 intrinsic and 3 extrinsic causes of myogenic contracture ๐
-
SKIN
- Trauma, burns, infection, systemic sclerosis
-
BONE & TENDON
- Immobilization, capsular fibrosis, infection, trauma, degenerative joint disease
- Tendinitis, bursitis, ligamentous tear, and fibrosis
-
MUSCLE
- Intrinsic: Traumatic (e.g., bleeding, edema), Inflammatory (e.g., myositis, polymyositis), Degenerative (e.g., muscular dystrophy), Ischemic (Compartment)
- Extrinsic: Spasticity, Flaccid paralysis,Mechanical/Positional, Immobilization
- MIXED
DeLisa 5th Edition Chapter 48 Physical Inactivity pg1255 Table 48.2
What are the 5 stages of rehabilitation in sports injury? ๐๐ Dr. Jamal
- Management of PAIN and inflammation with relative rest.
- ROM exercises, goal is to restore painless full motion
- STRENGTH exercises and fixing muscle imbalance
- PRIOPRIOCEPTION training.
- Sports/task SPECIFIC activities.
Delisa pg 1414.
List 6 reasons for non-union of a fracture (delayed fracture healing).
ALIGMENT
- Bone - poor fixation.
BLOOD
- Smoking.
- AVN (poor blood supply).
NUTRIENTS
- Nutrition (Vit D deficiency, calcium deficiency)
- Endocrine (Vit D deficiency, calcium deficiency, occult hyper PTH, HypoTSH, poor DM control, Pagets disease).
INFLAMMATION
- Meds (anti-inflammatory i.e. Corticosteroids, NSAIDs).
- Infection.
GHJ Instability: Classification, Presentation, Directions, Xray, Complications, Tx ๐๐ (OSCE)
DEGREES OF INSTABILITY
Instability
Translation of the humeral head with respect to the glenoid fossa.
- Anterior (most common): abduction & external rotation (ie throwing)
- Posterior: adducted & internal rotated (fall on flexed arm) โ during seizure
- Multi-Directional: generalized laxity (Ehlers-Danlos syndromes (EDS) & Marfan)
Subluxation
Incomplete separation of the humeral head from the glenoid fossa with immediate reduction and partial intact joint capsule.
Dislocation
Complete separation of the humeral head from the glenoid fossa without immediate reduction with injured joint capsule.
PRESENTATION
- Generalized ligament laxity
- Dead arm syndrome: Shoulder fatigue, pain, numbness, and paresthesias
- Fear of re-dislocation in abduction and external rotation (ie throwing and vollyball)
DIRECTIONS
Anterior Instability
- Most common, younger population, high recurrence rate
- Mechanism: Arm abduction and external rotation (ie throwing)
- Complication
- Axillary n. injury
- Bankart lesion
- Labral Tear of anterior glenoid
- Avulsion fracture off the glenoid rim (boney Bankart)
- HillโSachs lesion
- Compression fracture of posteriolateral humeral head
- Provocative Tests
- Anterior load-and-shift test (modified anterior drawer test)
- Apprehension
- Relocation test
- Anterior drawer test
Posterior Instability
- Provocative Tests
- Posterior load-and-shift test
- Jerk Test
- Posterior drawer test
- Complications
- Reverse Bankart lesion
- Reverse HillโSachs lesion
- Treatment
- Immobilize roughly 3 weeks
- Strengthening the posterior shoulderโscapula musculature (6 months)
Multidirectional
- Provocative Tests
- Sulcus Sign
- Load-and-shift test
XRAY
- AP, scapular-Y, and axillary lateral views
TREATMENT
๐ก Higher mobility joint uses dynamic muscular control as its greatest stabilizer.
1. Non-Traumatic AMBRI
- Atraumatic - Multidirectional - Bilateral - Rehabilitation - Inferior capsular shift
- 80% of the patients obtain excellent results with rehabilitation
- This highly mobile joint uses dynamic muscular control as its greatest stabilizer
- Educating patients for avoid positions of known instability
- Inferior capsular shift indicated surgical treatment
2. Traumatic TUBS
- Traumatic - Unidirectional - Bankart - Surgical
- Sling immobilization 2-3 weeks
- Passive range of motion (PROM): Codmanโs pendulum exercises
- Isometric exercises early in the recovery course
- ROM and strengthening the posterior shoulderโscapula musculature
- After a third dislocation, surgical maybe considered
Cuccurollo 4th Edition Chapter 4 MSK pg159-162
Labrum Tear: Presentation, Complication, Tx ๐๐
Presentation
- Shoulder instability (clicking, locking, pain)
Etiology
- Repetitive overhead sports (baseball, volleyball) or traumas
Pathophysiology
- Tears may occur through the anterior, posterior, or superior aspect
- Accompanied by rotator cuff or biceps tendon pathology, as they are insert on the labrum
- Superior glenoid Labral tear in the Anterior-to-Posterior direction (SLAP)
Provocative Test
- Load-and-shift test
- OโBrienโs test
Treatment
- Same as GHJ instability
Cuccurollo 4th Edition Chapter 4 MSK pg162-163
Deltoid injury: Presentation & Treatment
ANATOMY
- Origin: Anterior clavicle, the acromion, and the spine of the scapula.
- Insertion: Deltoid tuberosity of humerus
- Nerve: Axillary nerve (C5, C6)
STRAIN
- Anterior deltoid can be injured during the acceleration phase of throwing.
- Posterior deltoid can be injured during the deceleration phase of throwing.
- Swelling, local tenderness, and limited shoulder motion
RUPTURE
- Crush injuries or severe direct blows
- Swelling, ecchymosis, palpable defect & weakness.
- Grade V AC joint separations
IMAGING
- Plain radiographs to r/o shoulder dislocation or AC separation
- MRI suspected cases of deltoid rupture.
TREATMENT
- For strains and contusions, ice and immobilize acutely. Then perform stretching and progressive strengthening exercises.
- For complete rupture or avulsion, treatment is surgical reattachment.
Cuccurollo 4th Edition Chapter 4 MSK pg172
Types of scapular winging. Nerve injury and muscles affected ๐๐ MOCK
Management
- Electrodiagnostic studies โ diagnose nerve injury and prognosis.
- Scapular stabilization rehabilitation
Cuccurollo 4th Edition Chapter 4 MSK pg173-173
PMR Secrets 3rd Edition Chapter 43 Shoulder pg 342 Table 43-1
What are the 3 stages of shoulder impingement (Neerโs staging) ๐๐ MOCK
Describe the classification of impingement syndrome ๐๐ Dr. Jamal
Why does impingement syndrome result in rotator cuff tears?
Shoulder impingement: Presentation, PEx, Management
NEER CLASSIFICATION
Stage 1: Edema or hemorrhage (age <25) โ Reversible, conservative
Stage 2: Fibrosis and tendonitis (ages 25โ40) โ Less reversible, usually not surgical.
Stage 3: AC spur and rotator cuff tear (age >40) โ Surgery
INTERNAL IMPINGEMENT
Primary
- Hooked acromion
- Thick coracoacromial ligament
Secondary
- Glenohumeral joint instability
- Weak scapular stabilizers
- Scapulothoracic dyskinesis
EXTERNAL IMPINGEMENT
- Overhead athletes
- Abduction and external rotation
- Augmented by posterior joint instability capsular tightness
ROTATOR CUFF
Muscle
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis
Function
- Rotate the arm
- Stabilize the humeral head against the glenoid.
Why does impingement syndrome result in rotator cuff tears?
- Because the critical zone of hypovascularity is about 1 cm from the insertion site
Inadequate scapula rotation during shoulder elevation
- Weakness of the scapula stabilizers
- Muscle incoordination
Tear
- Direct trauma
- The result from chronic impingement (older than 40 years old)
- Curved or hooked acromion has a higher risk of rotator cuff tears.
PRESENTATION
- Pain in repetitive overhead activities (Flexion, abduction, internal rotation)
- Crepitus, clicking or catching on overhead activities
- Pain may be referred anywhere along the shoulder girdle
- Nocturnal pain โ Difficulty sleeping on the affected side.
- Glenohumeral joint instability: numbness, tingling, feelings of subluxation, or previous โdead armโ episodes.
PHYSICAL EXAMINATION
- Atrophy (chronic tears)
- Strength testing of the rotator cuff muscles
- Tenderness: Over the greater tuberosity or inferior to the acromion on palpation
- Painful arc
- Inability to initiate abduction may indicate a rotator cuff tear
- pain occurring roughly between 60 degrees and 120 degrees.
- Impingement โ Near Hawk
- Neerโs impingement sign
- Supraspinatus tendon being compressed between the acromion and greater tuberosity of the humerus
- Hawkinsโ impingement sign
- Impingement of the tendon, most commonly the supraspinatus, under the acromion and the greater tuberosity occurs with arm abduction and internal rotation.
- Supraspinatus tendon being compressed between the coracoacromial ligament and greater tuberosity of the humerus
- Neerโs impingement sign
- Supraspinatus โ Drop the Can
- Empty can (supraspinatus) test
- Drop arm test
- The arm is passively abducted to 90 degrees and internally rotated
- Initially, the deltoid will assist in abduction but fails to indicate a complete tear of the cuff
- Apprehension test
- Anterior apprehension โ anterior instability of the glenohumeral joint and internal impingement โ relieved with the relocation test
INVESTIGATIONS
-
Shoulder
- AP View
- Subacromial sclerosis
- Superior migration of proximal humerus (Acromiohumeral distance < 7 mm)
- Flattening of the greater tuberosity
- Superior and medial wear into the glenoid, coracoid, AC joint, and acromion
- AC joint osteophytes
- โYโ view
- Assess acromion morphology
- AP View
-
MRI
- The gold standard (Full thickness tears and partial tears)
-
Ultrasound (US)
- Full thickness tears: non-visualization of the cuff
- Thickened, heterogeneous appearing tendon: partial tear or tendinosis.
CONFIRM DIAGNOSIS
- Elimination of the pain provoked by impingement testing after injection of 5 to 10 mL of 1% lidocaine into the subacromial space confirms the diagnosis of impingement.
CONSERVATIVE (REHABILITATION)
-
Acute phase (up to 4 weeks) โ Pain
- Reduce pain and inflammation
- Relative rest
- Reestablish nonpainful and scapulohumeral ROM.
- Minimize muscle atrophy of the entire upper extremity
- Extracorporeal shock-wave therapy
-
Recovery phase (months) โ ROM & Stabilize
- Proprioception
- Full pain-free ROM
- Improve scapular stabilizers (rhomboids, levator scapulae, trapezius, serratus anterior) โ 1st priority
- To reduce impingement, pull the shoulder down
- Strengthen scapula stabilizer (serratus anterior)
- Strengthen scapula retractor, and depress (rhomboids and inferior trapezius)
- Stretching muscles that protract and elevate the scapula (e.g., pectoralis minor and upper trapezius)
- Improve rotator cuff (supraspinatus) โ 2nd priority
- Closed chain exercises to promote stability and proprioception
- Open chain exercises can be used to correct strength imbalances, such as weakness of the shoulder external rotators relative to the internal rotators
- Re-establish normal scapulothoracic kinematics through neuromuscular retraining.
-
Functional phase โ Strength & Sport
- Strengthening exercises
- Increasing power and endurance (plyometrics)
- Perform activity-specific training
SURGICAL MANAGEMENT
-
Ultrasound-guided percutaneous lavage and aspiration
- Calcific tendinopathy is presented
-
Corticosteroid injection
- Only up to three injections yearly
-
Surgery
- Indicated in partial or full thickness tears that fail conservative treatment
- Acute rotator cuff tears (i.e., athletes/trauma) โ first 3 weeks
- Acromioplasty, coracoacromial ligament lysis, repair rotator cuff tendon.
- Restoration of abduction is less predictable than relief of pain.
Cuccurollo 4th Edition Chapter 4 MSK pg163-167
Braddom 6th Edition Chapter 35 UL Upper Limb Pain and Dysfunction pg717-718
List diagnoses associated with rotator cuff impingement
NARROW SPACE
- Subacromial spurs
- Subacromial bursitis
- Bicipital tendonitis
STATIC & DYNAMIC STABILIZER
- Coracoacromial ligament degeneration
- Rotator cuff disease
- Scapular dyskinesis
- GH instability
- Labral tear
REFERRED
- Cervical radiculopathy
Pain with shoulder abduction and overhead activities. Diagnosis & Management.
Diagnosis
- Calcified tendonitis, Ca deposit in supraspinatous tendon
- Size of the deposit has no correlation to symptoms
Management
- Physical therapy
- US-guided percutaneous needling, aspiration, and saline lavage
- Subacromial injection
- Surgical treatment for those who have failed more conservative treatments.
Cuccurollo 4th Edition Chapter 4 MSK pg168-169
When do you suspect AC joint injury?
List 2 Provocation Tests.
Mention 3 ligaments stabelize AC joint
Rackwood Classification of AC injury & their management. ๐๐
AC Joint:
- Gliding joint
Stabilization (3)
- Acromioclavicular (AC) Ligament: horizontal stability
- Coracoclavicular (CC) Ligament: preventing vertical translation
- Coracoacromial (CA) Ligament
Presentation
- Soft tissue swelling
- AC joint displacement type III or greater.
- AC joint tenderness
- Severe shoulder droop & instability
- Cross-chest (horizontal adduction or scarf) test
Xray
- Type III injuries may show a 25% to 100% widening of the CC space
- Type V injuries may show a widening >100%.
Acute
- Incomplete Tear (Types I & II): P.O.L.I.C.E., Return after 6 weeks
- Complete Tear (Type III): Surgical for heavy laborers, athletes
- Dislocation (Types IV, V, VI): (ORIF) or distal clavicular resection with reconstruction of the CC ligament
Chronic
- Corticosteroid injection
- Clavicular resection and CC reconstruction
Complications
- Clavicular fractures and dislocations
- AC joint arthritis
- Distal clavicle osteolysis
Cuccurollo 4th Edition Chapter 4 MSK pg155-158