SHOULDER INJURIES Orthopaedic Perspective of
Transcription
SHOULDER INJURIES Orthopaedic Perspective of
SHOULDER INJURIES Orthopaedic Perspective of Injuries: When Do you Need to Refer Your Patients to Me Thomas Loughran, MD 26 SHOULDER INJURIES An Orthopaedic Perspective When to Refer Thomas Loughran, MD MCV Department of Orthopaedic Surgery Objectives Recognize common sport medicine injuries Discuss treatment options Recognize when to treat and when to refer The Shoulder Joint • • • • Complex Range of Motion Little Bony Support Stability relies on soft tissue integrity Non weight bearing joint 27 1 Common Sport Shoulder Injuries Fractures Clavicle, Humerus, Humerus, Glenoid, Glenoid, Scapula Dislocations Glenohumeral, Glenohumeral, AC joint with osteolysis Soft tissue tears Rotator cuff, Labral, Labral, Biceps, Pectoralis 28 2 When to Refer: The Basics Displaced fractures and dislocations Shoulder Instabilities Persistent shoulder pain When your not comfortable treating patient When initial treatments fail Common Shoulder Fractures • • • Proximal Humerus usually seen in osteoporotic bone 85% are minimally displaced Clavicle fall on outstretched hand common in cyclers Scapular High energy injuries assoc. with first rib fxs and hemopneumothorax 29 3 Clavicle Fractures • • • • • 35% of all fractures about the shoulder 85% involve middle third of clavicle In patients under the age of 21 lateral fx often epiphyseal injury Non union rare Assoc. injury laceration of subclavian vessels, brachial plexus trauma Minimally displaced fx 30 4 31 5 Displaced clavicle fx Distal Clavicle Fracture Coracoclavicular ligaments Fxdistalclavicle__.jpg 32 6 Clavicle Fractures No need to refer nondisplaced fxs, fxs, minimally displaced fxs in medial or mid zones Tx with simple sling Displaced fxs, fxs, lateral zone, neurovascular, involvement, epipthyseal fxs, REFER fxs, Scapular Fractures Rare High index suspicion vague posterior shoulder pain High velocity injury Associated neurovascular injuries Axillary xray to delineate All need to be referred 33 7 adult_shoulder_fx_type_scapular_blade.jpg glenoid fx base.jpg Scapula fx base glenoid 34 8 Scapular fx body Glenoid fractures Associated with Shoulder Instability Fx that involves more than 25% of glenoid need ORIF 35 9 Glenoid Bony Bankart Fracture Glenoid displaced fx 36 10 CT Glenoid fx Glenoid Fractures Most need to be referred Associated with Shoulder Instability and significant trauma CT often needed to delineate fracture Look for associated scapular fractures 37 11 Proximal Humerus Fractures Most fractures are non displaced and do not need referal, referal, need to follow closely Greater tuberosity fxs, fxs, associated with rotator cuff injuries Seen in Younger Sportsmen as Epiphyseal Fxs, Fxs, not as common in Adults All displaced Fxs need to be Referred Greater Tuberosity Fx Displaced Greater Tuberosity Fx 38 12 Proximal Humerus 3 Part Fracture Prox Humerus Epiphyseal 2 part fx Percutaneous pinning 39 13 Instability Lesions of the Shoulder • MOBILITY versus STABILITY Dislocations of the Glenohumeral Joint • • • • Anterior shoulder dislocations most common. Tear of ant. capsule MOIMOI- ext. rotation/abduction Assoc. PathologyPathology- Glenoid fxs(Bankart), fxs(Bankart), Humeral head fxs(Hillfxs(HillSachs), Nerve injuries, Axillary and Musculocutaneous 40 14 Anterior inferior shoulder dislocation 41 15 Natural History of Anterior Shoulder Dislocations Under the age of 20 recurrence rate close to100 percent Under the age of 30 recurrence rate 50% 40% chance of rotator cuff tear with dislocation in patients over 60yoa Relocation test 42 16 Attenuated anterior capsule Bony Bankart lesion 43 17 Hill-Sachs Lesion Fraying Anterior Labrum Hill-Sachs Lesion 44 18 Treatment of Anterior Shoulder Dislocations- Initial Trauma • • • • • Reduction Immobilization in sling for 3weeks Rotator cuff and scapuloscapulo-rotator muscle strengthening Protective Bracing e.g. Sawa Brace Select group may opt for surgery, West Point study 80% failure of non operative pts Reduction GH Joint 45 19 Tx for recurrent anterior shoulder dislocation • • • • Individualize based on age, age, activity level, demands, dominant extremity, assoc. pathology Surgery for TUBS lesion (traumatic unidirectional Bankart) Bankart) Operate when glenoid fx makes up more than 20 percent Joint surface Open repair 4 to 10 % failure rate, arthroscopic repair 12 to 40 % failure rate Sling in Internal Rotation 46 20 Brace in Neutral Rotation 47 21 Sawa Brace Arthroscopic repair bankart labrum 48 22 Macrotrauma and Microtrauma Mechanism of Injury Acute Anterior Shoulder Subluxation • • • • MOIMOI- ext. rotation force single vs. repetitive Seen in over head throwersthrowers- Dead Arm Syndrome Due to Anterior Capsular Stretching Assoc. with Brachial Plexus Stretch 49 23 Exam for Shoulder Instability • • • Apprehensive testtest- pain anterior with external rotation and abduction Relocation testtest- reduction of pain when posterior force applied to ext.rot.abducted shoulder Internal Impingement testtest- posterior shoulder pain as humeral head impinges on posterior rotator cuff due to anterior capsular laxity 50 24 Internal Impingement secondary to anterior instability Often presents with posterior shoulder pain Tight Internal Rotation 51 25 Little League Shoulder Proximal Humerus Epiphyseal Fx Posterior Dislocation of the Shoulder • • • • MOIMOI- forward flexion and internal rotation force Patients have difficulty opening doors, doing pushups, posterior shoulder pain with weakness of external rotators of shoulder Lateral and axillary xrays to assess posterior glenoid lesions Rehab the key in treatment, Surgical failure rates up to 50% 52 26 53 27 Posterior dislocation Lateral Scapula view Posterior dislocation Axillary View Posterior Dislocation 54 28 Multidirectional Instability of the Shoulder(MDI) • • • • Shoulder capsule lax in 2 or more directions sag sign Generalized laxity of all joints EhlersEhlersDanlos type Repetitive microtrauma usual cause, gymnastics, swimming, volleyball, overhead activity Voluntary Dislocators Sulcus Sign 55 29 Sulcus sign Inferior Instability Treatment of MDI Syndrome • • • • Rehab,Rehab,Rehab Avoid surgery in voluntary dislocators If surgery neededneeded- Capsular shifts with plication of capsule with thermo capsular shrinkage as adjunct is encouraging High surgical failure ratesrates- difficulty finding the true center of shoulder 56 30 GlenoHumeral Instability Primary GH Dislocation in Athlete need to refer Recurrent Dislocators Rx Mulifactoral Posterior Instability often missed MDI usually rx non operative r/o ErhlerErhler-Danlos Syndrome Direct Blow to Shoulder 57 31 Acromioclavicular Instability • • • • • MOIMOI- direct fall on the lateral edge of acromion, acromion, fall on out stretched arm Tenderness at AC joint with or without distal clavicle elevation Grades 11-VI higher grades more severe soft tissue involvement Grades 11-III do well with sling, ice ,analgesics , and gentle ROM Grade 1 lesions can lead to osteolysis of distal clavicle 58 32 AC Joint Separation Types 1and 2 can be tx with sling and swathe no need to refer Type 3 and above refer controversy with tx type 3 Types 4 and above need surgery Type 1 can lead to osteolysis of clavicle AC Joint Repair 59 33 AC Joint Arthritis • • • • • Seen after AC separations Pain with adduction of shoulder and direct palpation Osteolysis of distal clavicleclavicle- resorption of distal clavicle Rx Nsaids, Nsaids, AC joint injection, SurgicalSurgical- Distal clavicle excision Osteolysis of Distal Clavicle 60 34 Acute Musculotendinous Injuries of the Shoulder • • • Rotator Cuff tears Pectoralis tears Biceps Tears Pectoralis Tears • • • • • • Resistive adduction eccentric exercises seen wt. Lifters doing bench press Anterior shoulder pain over pec musculature Weakness with muscle deformity and ecchymosis MRI to delineate if tear is in tendinous area which should be repaired in active athlete Refer athletes who want to continue lift heavy weights and for Cosmesis Up to 40% loss of Strength 61 35 Ecchymosis Pectoralis Tear Pec Major Tear 62 36 Biceps Tendon injuries of the Shoulder • • • • Rupture long head of BicepsBiceps- concentric and eccentric muscle contracture Assoc. with Rotator Cuff tears in patients over 40 Biceps acts as humeral head depressor and resists anterior forces with the humeral head ext rotated and abducted SLAP tears Biceps anchor lesions on the glenoid Proximal biceps tear Biceps seroma 63 37 Distal Biceps Tear Treatment Proximal Biceps Tears Tears manifest 2020-50% loss of Supination and 10 % loss of Flexion Throwing athletes and contact sport athletes need tenodesis REFER Most don’t need referral however follow for chronic ache pain and some athletes don’t like cosmetic look Slap Tears 64 38 SLAP Tears of the Shoulder • • • • • Superior Labral tear Anterior to Posterior seen in repetitive overhead activity Disruption of Biceps anchor attachment on the Glenoid Four types of tear Speed testtest- bicipital pain with resisted forward elevation of arm while the elbow is extended and the forearm supinated O’Brien’s signsign- anterior shoulder pain with the shoulder adducted and internally rotated at 90 degrees flexion Slap Test Test Active Compression 65 39 Compression Rotation Test Treatment of SLAP tears • • • • MRI with Contrast to delineate tear Associated with GH joint instability esp. ant/sup laxity Arthroscopic repair vs. resection treatment of choice 60% return to overhead sports Normal Labral Insertion 66 40 Type 2 Labral tear Slap Repair Rotator Cuff Disease • • • • Rotator cuffs four muscles important depressors of humeral head Initiate overhead movement by locking humeral head in the glenoid Spectrum of pathology tendinitistendinitissubacromial bursitisbursitis- full thickness tears Loss of blood supply with ageage- 1/3 of patients over 70yoa have rotator cuff tears 67 41 Rotator Cuff Pathology Etiology Rotator Cuff Etiology • • • Impingement lesions assoc. with subacromial spurs, loss of subacromial space, Os Acromiale Undersurface tears tensile overload with loss of elasticity Traumatic tears unusual in the young population over age 40 associated with shoulder dislocations 68 42 Impingement test 69 43 Supraspinatus test Scapula Winging 70 44 Subscapularis Ruptures • • • • MOIMOI- hyperextension/external rotation Anterior shoulder pain with weakness internal rotation Lift off test with hand behind back push away MRI often needed to make diagnosis Lift Off Test for Subscapularis Impingement Syndrome • • • • • • Pain with forward flexion of shoulder usually over 90 degrees Subacromial arch pathology Spectrum of disease age related 5th and 6th decades highest incidence of RTC tear presentation NIGHT PAIN Positive injection subacromial test Younger age assoc. with GH instability Importance of MRI with Contrast 71 45 Diagnostic Shoulder Injection Types of Rotator Cuff Tears Bursal side Under Surface Full Thickness Types Of Acromion Anatomy 72 46 Type III Acromion Ultrasound Rotator Cuff Treatment of Rotator Cuff Disease • • • • Acute tears in young patient operate within 6 weeks REFER Non acute tears and Impingement lesionslesions- Rehab to get back strength and rom Failure to improve Refer Nsaids, Nsaids, ice, steroid injections SurgicalSurgical- Intractable pain, loss of strength, functional limitations 73 47 Rotator Cuff Arthropathy Rotator Cuff Disease Chronic 74 48 Oslo Fjord 75 49