– See: Baumann’s Angle – Discussion: – cubitus varus is the most common complication following supracondylar frx, – orginally, etilogy of cubitus varus was thought to occur because of growth disturbance of distal humeral epiphysis; – this may be true but is uncommon; … Read more
Origin: tip of coracoid process on scapula; Insertion: middle of medial border of humerus, opposite deltoid tuberosity; action: horizontal flexion and adduction of the humerus at the shoulder; synergists: pectoralis major, biceps brachi, and anterior deltoid; nerve supply: musculocutaneous, C6, C7; – Surgical Hazards: – profunda gives off muscular branches, usually gives rise to … Read more
Anatomy: coracoid process can be palpated thru anterior deltoid muscle one to two finger breadths below outer portion of clavicle; one finger breadth lateral to coracoid is the GHJ; provides a palpable guide to deltopectoral groove; serves as an anchor for coracoid muscles (coracobrachialis & short head of biceps) that separate lateral safe side from medial … Read more
– Antebrachial Compartment Syndrome: (see compartment syndrome menu) – causes: – may follow supracondylar fr(x) of humerus, or both bone forearm fractures; – compartment syndromes in the forearm after wrist fractures usually involve the volar compartment; – compartment syndrome monitoring – technique of forearm fasciotomy: (see … Read more
– Discussion: – dislocations of the elbow associated with fracture are termed complex; – comprimise 49% of elbow dislocations; – most of these fractures are inherently unstable and require surgery; – prolonged elbow immobilization produces poor results. – surgery must achieve sufficient stability to allow … Read more
– See: – Avulsion Fracture – Comminuted Fractures – Excision of Olecranon: – Fracture Dislocations – Oblique Fractures – Radial Head Fractures: – Surgical Approach: – Transverse Fractures – Discussion: … Read more
– See: – Two Part Fractures – Three Part Fractures – Four Part Fracture – Definition of Displaced: – segment displaced more than 10 mm or angulated more than 45 deg; – Minimal Displacement: – results from low energy forces & has preserved soft tissue hinges; … Read more
– See: – Clavicular Frx in Children / Congential Pseudoarthrosis of Clavicle – AC joint / Sternoclavicular Joint Injury / Scapula Fracture – Discussion and Classification – Exam Findings: – brachial plexus – ref: Injury to the brachial plexus by a fragment of bone after fracture of the clavicle – Radiology: – Serendipity View … Read more
– See: – Bone Tumor Menu and Osteosarcoma Demonstration Project – Discussion: – malignant tumor of bone in which neoplastic osteoid is produced by a proliferating spindle cell stroma; – most common primary malignant bone tumor of mesenchymal derivation; – arises in adolescents, and second or third decade; – … Read more
– See: Bone Tumor Menu – Discussion: – malignant cartilaginous tumor of bone (3rd most common malignant bone tumor / comprises 20% of malignant bone lesions); – it is less common and less aggressive than osteosarcoma; – staging: – histologic grading is best predictor of stage; – most often presents as … Read more