The Hip book

Angiosarcoma

– See: Soft Tissue Menu – Discussion:     – high grade sarcomas of vascular origin;     – occur most often in middle aged persons;     – when the tumor arises in bone, it frequently extends up and down the bone w/ distinctive pattern of “soap bubble” lesions;     – sub-types:     … Read more

Anke Equinus Contracture

  – Discussion:     – see: role of ankle and subtalar joint in gait     – normally, during the transition from foot flat to heel off, the foot dorsiflexes as the body moves forward;     – gait consequences of equinus contracture:              – patient may adopt a toe to toe gait pattern or … Read more

Anconeus

  origin: posterior surface of lateral epicondyle of humerus; insertion: lateral side of olecranon process and posterior surface of proximal portion of ulna; action: extension and pronation of the forearm at the elbow; nerve supply: radial, C5, C6; synergist: triceps brachii The aconeus muscle flap: its anatomy and clinical application.

Anesthesic Considerations for Spine Patients

– Pre-anesthetic Considerations:     – in spine injured patients, anesthesia is necessary even if the extremity is insensate inorder to prevent spasm and automatic dysreflexia;           – need to monitor for automatic dysreflexia (spinal anesthesia preferred);     – be aware that acture high paraplegics, because of generalized venous dilation, … Read more

Anatomy of the Axis

    – See:       – Development & Anomalies of Axis       – Dens Frx:       – Extension Teardrop Frx of C2       – Hangman’s Frx       – Normal Variants:   – Discussion:     – C2 provides rotation at its superior articulation w/ C1, … Read more

Anatomy of the CMC Joint

– See: CMC arthritis – Discussion:     – base of thumb metacarpal articulates w/ saddle shaped trapezium;     – saddle shaped articulation provides inherent stability;     – radial lateral ligament, which is covered by APL tendon, inserts into the thumb metacarpal;     – deep anterior oblique ligament (palmar beak ligament);   … Read more

Anatomy of Rotator Cuff

      – See: Rotator Cuff Tear – Discussion:     – see abductors of the shoulder;     – common tendon covering top, front, & back of humeral head;     – 4 muscles fuse to form this tendon: (subscapularis, supraspinatus,, infraspinatus, teres minor;)     – supraspinatus           – lies … Read more

Anatomy of Carpal Tunnel

–  Discussion:      – transverse carpal ligament, is a heavy band of fibers which runs between hamate & pisiform medially to scaphoid and trapezium laterally, and forms             fibrous sheath which contains carpal tunnel anteriorly within fibro-osseous tunnel;             – posteriorly, tunnel is bordered by carpal bones, and transports median … Read more