The Hip

Upper Extremity Prosthetics

– Terminal Devices:     – Functional Hooks vs. Cosmetic Hands;     – Hooks: Voluntary opening vs closing:        – voluntary opening:           – more popular & are recognized by their numbers of rubber bands (# is proportional to pinch strength, w/ 3 bands equal to about   … Read more

Types of Anterior Dislocation

– See: Multidirectional Instability:  – Radiographic Subtypes:     – Subcoracoid          – most common type of anterior dislocation          – head of humerus is displaced anteriorly w/ respect to glenoid, & is inferior to coracoid process;          – greater tuberosity is fixed on anterior glenoid rim;          – neck … Read more

Type I Epiphyseal Injury: of Proximal Humerus

– Discussion:     – encountered in infants and young children;     – this frx is difficult to diagnose since humeral epiphysis since it is mostly cartilage; – Treatment:     – if arm is shortened and abducted then restore length & alignment by applying longitudinal traction w/ arm in 90 deg of abduction, … Read more

Tumors of the Proximal Humerus / Scapula

– Osteosarcoma (common) – Enchondroma (relatively common) – Ewing’s sarcoma: diaphyseal region; – Periosteal chondroma (just proximal to insertion of deltoid) – Osteochondroma – Chondroblastoma – Chondromyxoid fibroma – Aneurysmal bone cyst – Simple bone cyst – Giant Cell Tumor of Bone; – Chondrosarcoma: (affects the shoulder girdle) – Fibrous Histiocytoma – Fibrosarcoma of bone; … Read more

Tumoral Calcinosis

– See: Ossification of Soft Tissue and Periosteum: – Discussion:     – heritable dz characterized by periarticular metastatic calcification;     – typically the shoulders and hips are affected most often;     – vascular and visceral calcification does not occur;     – hyperphosphatemia may play a role in this disorder; – Clincal … Read more

Tumors of Soft Tissue

       – Bone Tumors      – Biopsy      – European Cancer Institute – Soft Tissue Sarcomas      – Metastatic Tumors      – MRI      – Stage Classification Tissue type: – Osseous      – Myositis ossificans      – Extraosseous osteosarcoma – Carilaginous:      – Chondroma      – Extraosseous chondrosarcoma      – Synovial Chondromatosis – Fibrous:      – Fibroma      – Fibrosarcoma      – Desmoplastic Fibroma      – … Read more