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Common Shoulder Disorders

Common Shoulder Disorders. Abdulaziz Al-Ahaideb Knee and Shoulder surgeon د عبدالعزيز الأحيدب. Common shoulder disorders. Basic shoulder anatomy Impingement syndrome Rotator cuff pathology Adhesive capsulitis Glenohumeral osteoarthritis Recurrent shoulder dislocations

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Common Shoulder Disorders

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  1. Common Shoulder Disorders Abdulaziz Al-Ahaideb Knee and Shoulder surgeon د عبدالعزيز الأحيدب

  2. Common shoulder disorders • Basic shoulder anatomy • Impingement syndrome • Rotator cuff pathology • Adhesive capsulitis • Glenohumeral osteoarthritis • Recurrent shoulder dislocations • Acromioclavicular separation

  3. Shoulder Anatomy • The greatest range of motion body.

  4. Shoulder Anatomy:Bony Anatomy • Humerus • Scapula • Glenoid • Acromion • Coracoid • Scapular body • Clavicle • Sternum

  5. Joints • Glenohumeral joint: the main joint • Acromioclavicular (AC) joint • Sternoclavicular (SC) joint • Scapulothoracic joint

  6. Shoulder Anatomy:Rotator Cuff Muscles • Depress humeral head against glenoid

  7. Shoulder anatomy:Rotator cuff muscles • Supraspinatus: • Abduction • Infraspinatus: • External rotation • Teres Minor: • External rotation • Subscapularis: • Internal rotation

  8. Muscles • Deltoid: • largest, strongest muscle of the shoulder.

  9. Pectoralis Major Deltoid Long Head of Biceps

  10. Shoulder (Anterior View)

  11. LABRUM Cartilage ring around the glenoid. Deepens the socket of the G-H Joint

  12. Subacromial bursa • Between the acromion and the rotator cuff tendons. • Protects the acromion and the rotator cuff from grinding against each other.

  13. Common shoulder disorders • Basic shoulder anatomy • Impingement syndrome • Rotator cuff pathology • Adhesive capsulitis • Glenohumeral osteoarthritis • Recurrent shoulder dislocations • Acromioclavicular separation

  14. Impingement Syndrome • Describes a condition in which the supraspinatus and bursa are pinched as they pass between the head of humerus (greater tuberosity) and the lateral aspect of the acromion

  15. Risk factors • Age: over 40 years • Overhead activities • Bursitis and supraspinatus tendinitis • Acromial shape: type II & III acromion • AC arthritis or AC joint osteophytes

  16. Symptoms • Pain in the acromial area when the arm is flexed and internally rotated Inability to use the overhead position. • The pain may result from subacromial bursitis or rotator cuff tendinitis • Pain when sleeping on the affected side.. • Pain will often become worse at night, as the subacromial bursa becomes hyperemic after a day of activity • Decreased range of motion especially abduction • Weakness

  17. Differential diagnosis • Rotator cuff tears • Calcific tendinitis • Biceps tendinitis • Cervical radiculopathy • Acromioclavicular arthritis • Glenohumeral instability • Glenohumeral osteoarthritis.

  18. Physical examination • Atrophy of rotator cuff muscles. • Decreased range of motion (esp. internal rotation & adduction) • Weakness in flexion and external rotation. • Pain on resisted abduction and external rotation. • Pain on “impingement tests”..

  19. Impingement tests • Neer’s impingement test: passive elevation of the internally rotated arm in the sagittal plane (shoulder passive forward flexion). • Hawkins’ impingement test: with the elbow flexed to 90 degrees, the shoulder passively flexed to 90 degrees and internally rotated.

  20. Neer’s test Hawkins test

  21. Radiological findings • Plain X-rays: • Acromial spurs • AC joint osteophytes • Subacromial sclerosis • Greater tuberosity cyst • MRI: • To confirm the diagnosis and rule out rotator cuff tear

  22. Type of acromion: I : flat II : curved III: hooked Supraspinatous outlet view

  23. Management • Conservative treatment: • Always start with it • Operative: • Indicated when conservative measures fail

  24. Conservative treatment • Avoid painful and overhead activities • Physiotherapy: • Stretching and range of motion exercises • Strengthening exercises • NSAIDs • Steroid injection into the subacromial space

  25. Operative treatment • The goal of surgery is to remove the impingement and create more subacromial space for the rotator cuff • Indicated if there is no improvement after 6 months of conservative treatment • The anterolateral edge of the acromion is removed • Open (called: Acromioplasty) or arthroscopic technique (called subacromial decompression) • Success rate 70-90%

  26. Common shoulder disorders • Basic shoulder anatomy • Impingement syndrome • Rotator cuff pathology • Adhesive capsulitis • Glenohumeral osteoarthritis • Recurrent shoulder dislocations • Acromioclavicular separation

  27. Rotator cuff

  28. Rotator cuff muscles • Supraspinatus: • Initiation of abduction + external rotation • Infraspinatus: • External rotation • Subscapularis: • Internal rotation • Teres Minor: • Internal rotation

  29. Function of rotator cuff muscles • Keep the humeral head centered on the glenoid regardless of the arm’s position in space. • Generally work to depress the humeral head while powerful deltoid contracts

  30. Causes of rotator cuff tears • Intrinsic factors: • Vascular • Degenerative ( age-related) • Extrinsic factors: • Impingement • Acromial spurs • AC joint osteophytes • Repetitive use • Traumatic (e.g. a fall or trying to catch or lift a heavy object)

  31. Diagnosis • History • Physical examination • X-rays • MRI

  32. Symptoms • Pain radiating to deltoid insertion or biceps • Insidious progression of pain • Night pain • Popping noises • Weakness • Could be asymptomatic

  33. Signs • Painful arc 60 degrees - 120 degrees elevation • Drop arm test • Restricted internal rotation • Subacromial crepitus • Weak RC muscles • Inability to lift the shoulder • Palpation of cuff defect and wasting

  34. Imaging • Plain radiographs AP + lateral view Supraspinatus outlet view AC - joint view • Ultrasonography • Arthrogram • MRI • MRI - arthrogram • Diagnosis of the tear + impingement • Size of tendon retraction • Atrophy and fatty degenerationreplacement

  35. Management Goals of treatment • Elimination of pain • Restoration of function • Full range of motion • Prevention of progression or recurrence

  36. Modalities of management • Degenerative type: (always start with conservative) • Rest • Physio • NSAIDs • Steroid injection • If no improvement of 6 months, surgical repair (open or arthroscopic) is indicated • Traumatic type: (acute surgical repair)

  37. Operative treatment • Depends on: Patient factors: - Activity level - Expectations - Needs Pain or weakness - Interferes with work, sports, activities of daily living. - Unresponsive to appropriate non-operative treatment

  38. Operative treatment Wide spectrum of tears: • Partial • Complete • Small • Large • Massive (irreparable)

  39. Operative treatment Surgical Modalities 1. Rotator cuff tendon debridement 2. Subacromial decompression - open - arthroscopic 3. Rotator cuff tendon repair - completely surgically open repair - arthroscopic assisted mini-open repair - completely arthroscopic repair 4. Reverse shoulder arthroplasty

  40. Operative treatment • Rotator cuff repair - Active, normal acromion, >50% tear depth • Arthroscopic subacromial decompression • Sedentary, hooked acromion, <50% tear depth • Between these extremes ---- gray zone

  41. Complications of RC tears • Complete tears: if not treated  chronic pain and loss of motion and with time becomes irreparable  rotator cuff arthropathy • Complications of surgery: not improving, stiffness, infection, RSD

  42. Common shoulder disorders • Basic shoulder anatomy • Impingement syndrome • Rotator cuff pathology • Adhesive capsulitis • Glenohumeral osteoarthritis • Recurrent shoulder dislocations • Acromioclavicular separation

  43. Adhesive Capsulitis • Also called “frozen shoulder” • It is characterized by pain and restriction of all movements of the shoulder (global stiffness) • Usually self limiting (typically begins gradually, worsens over time and then resolves but may take >2 years to resolve)

  44. Adhesive Capsulitis • Risk factors: • DM (esp. insulin dependent) • Following injury or surgery to the shoulder • Hypo and Hyperthyroidism • High cholesterol

  45. Adhesive Capsulitis • Diagnosis: • Mainly clinical • X-rays and MRI to rule out other pathologies • Stages: • Pain (freezing stage) • Stiffness (frozen stage) • Resolution (thawing stage)

  46. Adhesive Capsulitis Treatment • Resolves if untreated over 2-4 years • Physiotherapy • Pain and anti-inflammatory medications • Steroid injections • Manipulation under anesthesia • Arthroscopic capsular release

  47. Common shoulder disorders • Basic shoulder anatomy • Impingement syndrome • Rotator cuff pathology • Adhesive capsulitis • Glenohumeral osteoarthritis • Recurrent shoulder dislocations • Acromioclavicular separation

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