– See: spine in osteoporosis – Discussion: – caused by long term calcium deficiency; – there is an age related decline in renal production of 1,25 Vit D with subsequent hyperparathyroidism & bone loss; – these pts have already lost most of the bone they ever will lose; … 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: – least common pediatric femoral neck frx (about 7%); – capital femoral epiphysis may stay w/in acetabulum but in 50% of cases the capital fragment is dislocated; – tends to occur in infants and young children; – this injury may be the result of a … Read more
– Discussion: – most common form; – distal end is located in the decussation of the FDS – small chip of bone is taken off w/ flexor tendon; – tendon retracts to level of PIP joint or distal to PIP, & long vincululm may remain intact; – a small … Read more
– Discussion: – articular fracture without significant displacement; – malleolar fractures with large plafond fragments; – these fragments are usually posterior; – posteroinferior tibiofibular ligament & deep transverse ligament are attached to the fragment; – first reduce & fix fibula; … Read more
– Nonossifying fibroma – Osteosarcoma – Giant Cell Tumor of Bone – Ewing’s sarcoma: – Osteochondroma – Chondroblastoma – Chondromyxoid fibroma – Eosinophilic granuloma … Read more
Local Tenderness – Osteosarcoma (common)—————————– Yes – Ewing’s sarcoma: (common) ———————— Yes – chondrosarcoma ———————————– Yes – Osteochondroma (Osteocartilaginous Exostosis) – Fibrous Dysplasia ——————————– Yes – Eosinophilic granuloma ————————— Yes – Aneurysmal bone cyst – Prostatic Ca: – most of prostatic ca mets are blastic & do not require … Read more
– Diff Dx: – Osteosarcoma – Osteochondroma – Fibrous Dysplasia – Ewing’s sarcoma: – Osteoid Osteoma – Eosinophilic granuloma – Aneurysmal bone cyst – Simple bone cyst – Chondrosarcoma: – Fibrous Histiocytoma – … Read more
– 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
– 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