Data Trace Editor – Discussion: – osteopetrosis is failure of osteoclastic and chondroclastic resorption; – bones become exceedingly dense; – marrow space is filled w/ unresorbed dense bone; – disease results from lack of osteoclastic resorption, leading to thickened bones & exclusion of marrow cavity; – there is absence of marrow elements & these patients are susceptible to … Read more
– Discussion: – most common metabolic bone dz; – definition: – what appears to be a characteristic of osteoporosis is an uncoupling of the osteoblastic and osteoclastic processes; – WHO definition: a bone mineral density that is 2.5 SD below the mean peak value … Read more
– See: Vitamin D Defiency Rickets; – Discussion: – following a Polya or Billroth II gastrectomy, osteomalacia develops that was quite subtle and only revealed itself by increasing muscle weakness or a pathological fracture; – abnormal fat metabolism, usually associated w/ failure of emulsifying action of bile salts or presence of free fat … Read more
– Discussion: – predisposing conditions: – open fracture (traumatic tibia infections) – sickle cell anemia – septic arthritis – in children, distinguishing between metaphyseal osteomyelitis and … Read more
– See: tibial infection and debridement of tibial fractures – Discussion: – see cierny classifcation – a sequestrum is infected dead bone resulting from osteomyelitis; – it is secluded from host immune system and is secluded from antibiotics; – result is a chronic and persistent of infection; … Read more
– Pathogenesis: – osteomyelitis occurs most frequently in the long bones of lower extremities, & to a lesser extent the upper extremities; – hematogenous osteomyelitis – pediatric bone circulation: tortuous course of nutrient vessels in bone causes bacteria to be trapped in the metaphysis; – epiphyseal plate prevents infection from entering the … Read more
– See: diabetic foot menu – Discussion: – see osteomyelitis – dx of osteomyelitis can be a difficult problem in diabetic pts w/ foot infections; – some physicians will make the dianosis of osteomyelitis if they can palpate bone thru the skin lesion; – … Read more
– Pathogenesis: – see: hematogenous osteomyelitis and pediatric bone circulation – tortuous course of the nutrient vessels in bone causes bacteria to be trapped in the metaphysis; – once lodged in the metaphysis, the infection spreads toward the epiphysis; – in neonates the periosteum … Read more
– Diff Dx Pediatric Throwing Elbow: (Radiology of Pediatric Elbow) – osteochondritis dissecans of the capitellum – osteochondrosis of the medial epicondyle – posteromedial olecranon osteophytosis: – chronic repitative throwing in the young adolescent w/ lax joints, can cause impingement of the medial tip of olecraon on posteromedial … Read more
Discussion is a type of metabolic bone disease in which the essential problem is a lack of available calcium or phosphorus (or both) for mineralization of newly formed osteoid; children w/ rickets & adults w/ osteomalacia present w/ similar findings; etiology of rickets and osteomalacia hyperthyroid induced osteopenia: chronic use of anticonvulsant medication: deficiency states: … Read more