– Discussion: – most common; – occur thru base of odontoid process & may be caused by either hyper-flexion or hyperextension forces; – blood supply is often comprimised in a type 2 frx – type II frx occurs at base of dens, typically, frx plane is transverse; … Read more
– See: Collagen Discussion: – Discussion: – type I is the major collagen of tendon and bone, but it is also the predominant in lung, skin, dentin, heart valves, fascia, scar tissue, cornea, and liver; – type I collagen is essential for the tensile strength of bone; … Read more
– Osteosarcoma (common) – Enchondroma (relatively common) – Ewing’s sarcoma: diaphyseal region; – Periosteal chondroma (just proximal to insertion of deltoid) – Osteochondroma – Chondroblastoma … Read more
– Osteochondroma – Osteosarcoma – Giant Cell Tumor of Bone – Ewing’s sarcoma: (diaphyseal region); – Chondroblastoma – Chondromyxoid fibroma – Fibrous Dysplasia – Eosinophilic granuloma – Aneurysmal bone cyst – Simple bone cyst … 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
– 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
– Discussion: – see shoulder replacement discussion (total shoulder vs hemiarthroplasty vs reverse arthroplasty) – the indications for total shoulder arthroplasty (versus hemiarthroplasty) are controversial; – there is some controversy regarding pain relief and component survivorship; – Gartsman GM, et al (2000), the authors compared hemiarthroplasty (24 … Read more
– See: – Myobacterium tuberculosis – Vertebral Osteomyelitis – Discussion: – 4000 cases of extrapulmonary involvment each year in the US; – most common extra pulmonary location of TB is the spine; – spine is the extrapulmonary site in over 50% of the cases of … Read more
– Discussion: – indicated for increased exposure requirements or unacceptable laxity of the abductors; – Technique: – release the origin of the vastus lateralis from vastus tubercle; – osteotomy is performed 1 cm below vastus tubercle
– See: – Blair Fusion – Charcot Marie Tooth – Equinovalgus – Grice Arthrodesis – Kocher approach – Ollier incision – Subtalar Fusion – Discussion: – results in fusion of subtalar, calcaneocuboid, and talonavicular joints; – most effective … Read more