Presentation on theme: "Shoulder Syndromes VOMA September 2011 P. Gunnar Brolinson, DO, FAOASM, FACOFP, FAAFP Head Team Physician, Virginia Tech Chief of Sports Medicine Edward."— Presentation transcript:
Shoulder Syndromes VOMA September 2011 P. Gunnar Brolinson, DO, FAOASM, FACOFP, FAAFP Head Team Physician, Virginia Tech Chief of Sports Medicine Edward Via Virginia College of Osteopathic Medicine Director Primary Care Sports Medicine Fellowship
Objectives Review anatomy of the shoulder complex Review motions of the shoulder complex Describe the functional biomechanical evaluation of the shoulder Understand and be able to perform an evaluation of shoulder using various functional and special tests Review some common shoulder problems
Introduction Shoulder injury is very common in the active patient population. It is a complex joint and presents unique challenges to diagnosis and subsequent treatment.
Introduction Shoulder Pain is the third most common MS complaint in primary care offices –Second to knee pain for referrals to ortho/sports medicine physicians Incidence 25/1000 patients –Peak incidence in year olds 8-13% of athletic injuries involve the shoulder
Introduction The shoulder complex is a loosely constructed highly mobile complex of bones, muscles and ligaments. It is designed for increased mobility to the upper extremity with only sufficient stability to provide a proper foundation for muscular function which is vital for the performance of sports or activities of daily living (ADL)
Introduction Effective diagnosis and treatment of the shoulder requires a mastering of the relationship of structure and function of this complicated joint.
Anatomy It is composed of 3 joints (sternoclavicular, acromioclavicular and glenohumeral) and one articulation (scapulothoracic). All four work together in a synchronous rhythm for full range dynamic motion.
Anatomy…SC Joint The sternoclavicular joint (SCJ) enables the humerus to achieve 180 degrees of Abduction. It is a saddle shaped joint made up of the medial end of the clavicle, the manubrium sternum and the cartilage of the 1st rib. There is an articular disc separating the surfaces which adds strength to the joint.
Anatomy…AC Joint A plane synovial joint that augments the range of motion (ROM) in the humerus. It is made up of the acromiom process of the scapula and the lateral edge of the clavicle.
Anatomy…AC Joint It is surrounded by a fibrous capsule and an articular disc separates the surfaces. Primary strength is supplied by the acromioclavicular and coracoclavicular ligaments – trapezoid ligament –conoid ligaments
Type I 17% Type II 43% Type III 40% Type III found in up to 80% of RC tears Compared with 3% in Type I
AC Joint/Subacromial Articulation Impingement –Greater tubercle –Acromion –Coracoacromial ligaments –Supraspinatus tendon Between 48-72% of shoulder pain in PCP office is subacromial impingement
Anatomy…GH Joint A multi-axial ball and socket joint surrounded by a capsule. Most of the support is provided by the rotator cuff muscles.
Anatomy of GH Joint The glenoid labrum is a ring of fibrocartilage that surrounds and deepens the glenoid fossa which increases the available contact area by approximately 70%.
Functional Anatomy…GH Joint The relaxed position of the humerus has it placed in the upper portion of the glenoid cavity. Contraction of the rotator cuff muscles pulls the humerus down into the lower/wider portion of the glenoid cavity. Without the dropping down, full Abduction is impossible.
GH Joint…Static Restraints Labrum –Ring of fibrocartilage –Deepens the glenoid fossa –Increases contact area ~70% Ligaments –Superior Glenohumeral –Middle Glenohumeral –Inferior Glenohumeral (important when shoulder is abducted and externally rotated)
The Scapulothoracic Articulation The scapula serves as a mobile platform from which the upper limb operates. It is made up of the body of the scapula and the muscles covering the posterior chest wall.
The Scapulothoracic Articulation The GHJ moves 120 degrees as the scapula swings about 60 degrees around the chest wall in a smooth 2:1 ratio.
The Scapulothoracic Articulation The articulation allows the scapula to glide medially, laterally, superiorly and inferiorly and rotate over the posterolateral chest cage. Asymmetry of position usually indicates asymmetry of motion.
The Scapulothoracic Articulation In any given arm position, the scapula aligns itself to allow the glenoid cavity to be in the best position to receive the head of the humerus. The apparent simple motion of the scapula is neurologically complex due to relatively little direct muscle action.
Extrinsic Muscles of the Shoulder Region Deltoid –Anterior (Flex/IR) –Mid-portion (ABd) –Posterior (Ext/ER) Pectoralis Major (ADd/flex/IR) Biceps (Flex) Triceps (Ext) Teres Major (ADd/IR) Latissimus dorsi (Ext/ADd/IR)
Intrinsic Muscles of the Shoulder Region Rotator Cuff Supraspinatus (ABd) Infraspinatus (ER) Teres Minor (ER) Subscapularis (IR)
Muscles of the Scapulothoracic Articulation Scapular Stabilizers Trapezius –Superior (Elev) –Middle (Retract) –Inferior (Depress) Levator Scapulae (Elev) Pectoralis Minor (Depress) Rhomboids (Retract) Serratus anterior (Protract)
Shoulder Stability The shoulder consists of passive and dynamic stabilizers.
Dynamic Shoulder Stability The dynamic stabilizers are the rotator cuff muscles along with the long head of the biceps. The scapulothoracic stabilizers are the rhomboids, trapezius, serratus anterior, and the pectoralis minor.
Ultimately Our Goal is Joint Congruence Maintenance of the articular surfaces apposition is the keystone to avoiding injury Altered engrams (motor activation patterns) increases loads on tissues, resulting in a singular macrotrauma or repetitive microtraumas More than a tight capsule and strong rotator cuff…
Shoulder Examination HISTORY Listen to the patient long enough and they will tell you what is wrong with them Where/when/what/how/why Specific mechanism of injury (MOI) (if any?) Chronic vs. acute What makes symptoms better or worse Instability/weakness Pain (0/10) Crepitation Radicular symptoms (pain radiation)
Shoulder Examination HISTORY Pain in shoulder coming from rotator cuff or bursa radiates to lateral deltoid – NOT past elbow! Pain that wakes on rolling over in bed suggests bursitis Pain that wakes from sleep suggests rotator cuff tear –88% sensitive, 20% specific
Shoulder Exam Physical exam should be done in the same manner each time so that nothing is forgotten: –Inspection –Palpation –ROM Active and Passive –Strength and Neurologic Testing –Regional Osteopathic Structural Examination –Special Testing
Shoulder Pain Diagram
Shoulder Exam Inspect –Expose the area –Step offs –Deformities –Ecchymosis –Asymmetry
ROM Forward flexion Extension 45 0 ABduction ADduction 45 0 IR 55 0 ER
A/PROM tests Apley scratch test: ER and aBduction (C7) IR and aDduction (T7) Asymmetry can be indicative of: – limited GH adduction –internal/external rotation –scapular movement Painful arc of motion –33% sensitive –81% specific
Scapular Dyskinesis Functional base for shoulder Alterations in the resting position affects timing and magnitude of: –Acromial upward rotation –Excessive movement of the glenoid –Decrease maximal RC activation Often associated with other upper extremity disorders
Range of Motion Asymmetry is the Key! Master the feel of normal/abnormal endpoints and restrictions of motion. Extra-articular blockage: rubbery feel and gives slightly under pressure Intra-articular blockage: inflexible and ROM ends abruptly
Physical Exam Neurologic exam Muscle & tendon pain worse with: –Passive stretch –Active contraction in a neutral position –Palpation Ligaments/capsule pain worse with: –Passive & active loading, usually only at the end ROM –Palpation
Reflex and Sensory Testing
Spurlings Test Puts pressure on posterolateral complex (articular pillars, facets, & neural foramina Could be a ligament, muscle/tendon, disc, osteoarthritis, nerve root inflammation (virus, etc.), or tumor
Lhermittes Sign/Test the Barber Chair phenomenon Trauma to cervical spinal cord Space occupying lesion (tumor, disc) Multiple sclerosis Cervical spondylosis Vitamin B 12 deficiency
Muscle Testing Range of normal muscle strength. When testing for strength, keep in mind that you are also testing for neurological function.
Special Testing Special testing can be done to add information for the diagnosis of the problem. Structured to uncover a specific type of pathology or dysfunction. Shoulder special testing includes but not limited to the following….
Specific Special Tests Biceps tendonitis –Yergasons –Speeds Rotator Cuff –Empty Can –Full Can –Lift Off/Napolean –Scapular Retraction Instability –Apprehension –Jobe relocation –Anterior Release –Glide/Load and Shift –Sulcus Test Impingement –Hawkins –Neers Cross Arm Adduction SLAP lesion –OBriens –Clunk or Crank –Resisted Supination/ER –Biceps load I and II –Zaslav TOS –Adsons –Roos
Biceps Tendonitis Yergasons Test Patient flexes elbow to 90 0 Physician grasps the elbow with one hand and the wrist with the other The examiner resists as patient attempts to supinate and flex the elbow The test is positive if pain is elicited as the biceps tendon or bicipital groove
Biceps Tendonitis Speeds Test Patient fully extends the elbow, flexes the shoulder and supinates the forearm Physician resists further flexion The test is positive when there is tenderness in the bicipital groove
Supraspinatus Testing Position the arms in a position of 90 0 ABduction and 30 0 forward flexion with the thumbs pointing down Apply a downward force as the patient resists The test is positive with weakness or pain –89% sensitive; 68% specific Full Can Test –Less impingement –Minimized infraspinatus –86% sensitive; 74% specific
Supraspinatus Test Scapular Retraction Test Scapular dyskinesis may decrease maximum RC activation With arm in empty can test position, scapula is lightly held in retraction by forearm pressure on the medial scapular border while the patient exerts maximum resistance Strength values increased by 24% in injured group, and 13% in control
Subscapularis Test Gerber Lift Off Test/Napoleon Test Internal rotation Minimal activation of pectoralis and latisimus Ability to lift off 62% sensitive 100% specific
Infraspinatus Test 0 0 abduction and 45 0 IR of humerus Minimal activation of supraspinatus and deltoid –Contribute more from 0 0 to 45 0 ER
GH Instability Apprehension Test –Causes anterior translation (subluxation) –Sens 40%, Spec 87% Jobe Relocation Test –Posterior pressure on the head alleviates the discomfort (relocation) –Sens 56%, Spec 93% Anterior Release Test –Allows for quick anterior translation/apprehension returns –Sens 92%, Spec 89%
GH Instability Glide Test This test is performed to assess of A/P instability Compare bilaterally The test is positive if there is excessive mobility
GH Instability Load and Shift Test Patient lie flat on the back so that the center of the scapula is on the edge of the table The physician holds the arm out 90 0 abduction Assess movement in the shoulder joint in the anterior and posterior directions Grade 0-3 Lachman of the shoulder 01 23
Inferior GH Instability Sulcus Test Apply traction in an inferior direction with the arm relaxed The test is positive if it causes inferior subluxation of the humeral head and widening of the sulcus between the humerus and the acromion About 25% of patients with MDI will have sulcus of 2cm or more
Multidirectional Instability (MDI) Usually not difficult to diagnose Laxity in at least the anterior and posterior planes, inferior is usually lax as well Can be overlaid by another pathology Often a laxity in a joint is the compensatory result of restriction elsewhere Imaging not usually necessary or helpful
Multidirectional Instability (MDI) Treatment considerations Neuromuscular retraining Maintenance of joint congruence Kinetic chain TX Somatic Dysfunction Reduction of capsule laxity –Prolotherapy –Bankhart or capsular plication
Impingement Syndrome Primary –Repetitive overhead motion –Supraspinatus impinges on acromion –Prominent coracoacromial ligament Secondary –GH laxity and instability of shoulder –Cephalad migration of humeral head –Labral lesion possible Internal (posterior-superior glenoid) –Inferior supraspinatus trapped between greater tuberosity and posterior superior labrum –Posterior superior synovitis and partial under-surface tears Tensile failure –Often as a result of fatigue and tears with eccentric loading
Impingement Tests Neers Test Patient seated, passively IR arm so that thumb is downward Flex the arm while stabilizing scapula The test is positive if discomfort or pain is elicited Impingement of the humerus against the coracoacromial arch 81% sensitive 50% specific
Impingement Tests Hawkins Test Tests supraspinatus impingement against the coracoacromial ligament Elevate the patients shoulder to 90 0, flex the elbow to 90 0 and place the forearm in neutral position IR the humerus The test is positive when there is pain or discomfort 90% sensitive, 60% specific
Impingement Syndrome Treatment Injection –Diagnostic –Therapeutic –Larger volume PT –Up to 6 mos –60-90% resolve OMT
AC Joint/Posterior Capsule Cross Arm Test With the patient seated, bring the arm across the chest as far as possible The test is positive if there is pain elicited at the AC joint By comparison with the opposite side one can ascertain the tightness or laxity of the posterior capsule
Superior Labral Anterior Posterior Lesions (SLAP) Anterior pain Posterior tightness Clicking or popping Dominant arm Mechanisms –Eccentric loading of biceps during throwing –Fall with compressive load –Forced Abd/ER –Excessive traction from weight lifting –MVA from seatbelt
SLAP - OBriens Test Shoulder 90 0 flexion, adduction, thumb pointed down Patient resists downward pressure Rotate to supination and resist flexion Test is positive if pain alleviated in palm-up position Sensitivity 67% Specificity 49%
SLAP - Crank Test Patient shoulder aBducted to 90 0 Axial load placed by examiner Humerus then IR The test is positive if pain is noted with or without an clunk, or reproduction of activity related symptoms Sensitivity 59% Specificity 82%
SLAP - Resisted Supination ER Test Patient is supine with scapula near the edge Examiner supports the limb in 90 0 aBduction, elbow flexed , forearm in neutral Patient attempts to supinate, as examiner resists and then gently externally rotated to the maximal point The test is positive if anterior or deep pain, clicking, or reproduction of activity related symptoms 83% sensitive, 82% specific
SLAP - Biceps Load Test Loads the superior labrum via stress on the biceps tendon during resisted flexion force Positive test is pain or apprehension Test I is 90 0 /90 0 Sens 91%, Spec 97% Test II is /90 0 Sens 90%, Spec 97%
SLAP - Zaslav Test Helps to differentiate labral tears from impingement syndrome Positive test denoted by weakness, NOT pain Sensitivity 88%, Specificity 96%
Thoracic Outlet Syndrome (TOS) Compression of the neurovascular structures at the superior aperture of the thorax Etiology –Neurologic Brachial plexus (95%) –Vascular Subclavian vein (4%) Subclavian artery (1%) Neurologic - Female-to-male ratio approximately 3.5:1 Venous - More common in males than in females Arterial - No sexual predilection
TOS - Etiology Anatomic –Scalene triangle (most common) –Cervical ribs (more common in arterial) –Congenital fibromuscular bands (up to 80% in neurologic) –Transverse process of C7 is elongated Trauma or repetitive activities –MVA, hyperextension injury, with subsequent fibrosis and scarring –Effort vein thrombosis (ie, spontaneous thrombosis of the axillary veins following vigorous arm exertion) –Playing a musical instrument: maintain the shoulder in abduction or extension for long periods Neurovascular entrapment –Costoclavicular space between the 1st rib and the head of the clavicle –C8-T1 (90%)-ulnar n. distribution
TOS - Adsons Test Patency of subclavian artery Classic maneuver Patients arm aBducted, extend and ER Patient then takes a deep breath and holds it while turning the head towards the side being tested Then turn head to the opposite direction Test is positive if diminished or absent pulse or reproduces symptoms
TOS - Roos Test Patient aBducts the shoulders to 90 0, ER, and flex the elbows to 90 0 Then patient then slowly opens and closes the hands for 3 minutes The test is positive if the arm becomes heavy or there are paresthesia of the hand Compression of subclavian artery and vein and the brachial plexus
Diagnostic Work-Up Depending on the injury, there are many diagnostic tests that can be done to evaluate an injury: X-rays CT Scan MRI CT/MR Arthrograms Selective injections –Using anesthetic and/or steroids Serial exams in office Ultrasound Dynamic ultrasound –In office –US guided injections
Imaging X-rays –AP –GH dislocation best seen on axillary views, also on scapular Y view
Imaging X-rays –Outlet views are obtained to evaluate impingement –For instability, West Point view or the Stryker notch view are used to better detect Bankart and Hill Sachs' lesions
Imaging Arthrogram –Detailed anatomical information is obtained when combined with CT or MRI of the shoulder –Excellent detail of capsular attachments and of the labrum
Thought for the Day… Education is what you remember after you have forgotten what you studied for the test." -Emerson