Triangular Space of Shoulder
– See: – see quadrangular space – Formed by Borders of: -Teres Major -Teres Minor – Long Head of triceps – scapular circumflex artery travels posteriorly thru trinagular space
Shoulder
(see also: Physical Exam; Radiographic Studies for the Shoulder)
- Abductors of the Shoulder
- AC Joint / AC Joint Separation
- Acromioplasty
- Adhesive Capsulitis
- Anterior Inferior Glenohumeral Ligament
- Anterior Instability
- Anterior Shoulder Reconstruction
- Arteries of the Upper Limb
- Arthroscopy of the Shoulder
- Arthodesis of the Shoulder
- Arthroplasty of the Shoulder
- Bankart Lesion
- Blood Supply to the Humerus
- Biceps Tendonopathy (proximal)
- Caldwell cast
- Calcific Tendinitis
- Capsule of the Shoulder
- Clavicle Fractures
- Coracoid
- Dislocation / Instability
- Distal Clavicle Resection
- External Rotators
- Erb’s Palsy
- Floating Shoulder
- Fractures of the Humeral shaft
- Frozen Shoulder
- Glenohumeral joint
- Hill Sachs Lesion
- Humeral Bone
- Internal Rotators
- Internal Impingement
- Impingement Syndrome
- Little League Shoulder
- MRI of Shoulder
- Multidirectional Shoulder Instability
- Mumford Procedure
- Neoplastic Differential Dx
- Neuropathic Shoulder
- Obstetrical Paralysis
- Os Acromial
- Osteonecrosis of Humeral Head
- Parsonage Turner Syndrome
- Physical Exam
- Proximal Humeral Fracture
- Proximal Humeral Physeal Injuries
- Radiographic Studies for the Shoulder
- Reverse Shoulder Arthroplasty
- Rotator cuff tear
- Scapula
- Shoulder Capsule
- SLAP Lesions
- Sternoclavicular Joint Injury
- Stinger / Burner
- Subacromial Bursa
- Surgical Approach
- Throwing Injuries
- Thoracic Outlet Syndrome
- Three Part Fractures
- Tumors of the Shoulder
- Winging of Scapula
Trapezius
– Discussion: – trapezius and serratius anterior stabilize scapular base from which the arm operates; – trapezius, which arises from spinous processes of cervical and thoracic vertebrae & inserts on spine of scapula and acromion, is innervated by spinal accessory nerve and branches from third … Read more
Transection of the Subscapularis
– Evaluation of Muscle: – about 5% of shoulders that have had an anterior dislocation will sustain a irrepairable injury to the subscapularis, which will contribute to further instability; – in this case, a pectoralis transfer would be indicated; – Preparation: – identify the anterior humeral circumflex … Read more
Transaxial View of the Shoulder
– Discussion: – used to evaluate capsule of shoulder, & glenoid labrum, subscapularis & long head of the biceps, and the humeral head; – glenoid labrum produces low signal intensity since it is made of fibrous tissue; – Hill-Sachs lesion, seen as a notched defect of flattening of humeral … Read more
Total Shoulder Arthroplasty: Deep Dissection
– Exposure of the Subscapularis: – the upper portion of the subscapularis tendon is exposed by partial release of the CA ligament off the coracoid, by placement of a Homan retractor directly above the coracoid, and by abduction and external rotation of the arm; – the upper portion of the … Read more
Total Shoulder Arthroplasty: Glenoid Component
– Discussion: – operative considerations: hemiarthroplasty vs total shoulder arthroplasty – anatomy: – normal population, glenoid version: from 5 deg of anteversion to 15° of retroversion, with an avg preop retroversion range from 1 deg to 6 deg; – surgical goal of resurfacing is to place the glenoid in 0° … Read more
Shoulder Arthroplasty – Mobilization and Repair of Subscapularis
– Discussion: – subscapularis anatomy: mobilization (360 deg release): – mobility of the subscapularis can be limited by adhesions to conjoined muscles, coracoid, glenoid, and capsule; – releases are required order to liberate subscapularis circumferentially about its long axis; – muscle should be fully mobilized off of the anterior glenoid; – … Read more
Throwing Shoulder
– See: throwing injuries: and elbow throwing injuries – Phases of Throwing: – wind up – early cocking: deltoid and rotator cuff are active; – late cocking phase: – muscle activity: – shoulder is placed in … Read more
Total Shoulder Replacement vs Hemiarthroplasty
– Operative Considerations: hemiarthroplasty vs total shoulder arthroplasty: – preoperative planning must take the following in consideration: status of rotator cuff, bone stock, asymmetric wear, and type and extent of soft tissue contractures; – expectations: – patients should not generally expect to achieve elevation … Read more
Teres Minor
– See Rotator cuff: – anatomy: – origin: middle half of the lateral scapular border; – insertion: inferior aspect of greater tuberosity of the humerus, capsule of shoulder joint; – action: – lateral rotation of humerus at the shoulder (responsible for 45% of power of external rotation); … Read more