(see also: Both Bone Forearm Fracture: / Ulnar Styloid Process) Anatomy radius & ulna lie parallel to each other when forearm is supinated; during pronation radius crosses ulna, rotating on axis that passes from capitulum through the distal end of ulna; ular side of wrist is supported by TFCC, which articulates w/ both lunate and triquetrium; … Read more
– 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
– Orthopaedic Infection Menu – bacterial menu – infectious tenosynovitis – diabetic foot infections – hand infections – THR infections – TKR Infections – septic arthritis – necrotizing soft tissue infections: – osteomyelitis (Cierney Classification) – spinal infection / osteomyelitis … Read more
– See: – Tibial Plateau Frx Menu: Bicondylar Fractures and Type V Frx, Type IV Fractures, Total Depression Fracture – Discussion: – frx of medial tibial plateau (see total depression frx): – carries worst prognosis of all tibial plateau fractures; – 2 subsets of injury: … Read more
– Discussion: – if the frx needs a reduction, then the frx is not a type I but a type II; – posterior cortex remains intact, making it a greenstick frx; – technically a type II frx implies posterior displacement, but frequently there will also be medial impaction w/ … Read more
– See: Posterior Frx Dislocations of the Hip – Discussion: – prognostic features: – long term results are proportional to the degree of intial trauma – this explains percentage of good results progressively decreasing from type II to type V injuries. … Read more
– Discussion: – fissure or margin sector fracture w/ displacement less than 2 mm; – type I fractures may be difficult to identify; – fat pads are intracapsular but extrasynovial; – anterior fat pad is normally visible anterioir to coronoid fossa; – posterior fat pad … Read more
– Nonossifying fibroma – Osteosarcoma – Giant Cell Tumor of Bone – Ewing’s sarcoma: – Osteochondroma – Chondroblastoma – Chondromyxoid fibroma – Eosinophilic granuloma … Read more
– 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
– Bone Lesions: – enchondroma: (relatively common) – osteoid osteoma: (talus, navicular, or calcaneus) – fibrous dysplasia – adamantinoma (foot) – metastatic lung cancer (? GI or GU) – osteochondroma – subungual exostosis, may develop on a distal … Read more