Discussion: – pathogenesis – vascular interruption: – blood supply to femoral head – specific inciting causes – natural history – diff dx: – synovitis; – Idiopathic Transient Osteoporosis of the Hip – femoral neck stress frx – metastatic disease – trochanteric bursitis: – ref: Avascular necrosis of the femoral head presenting as trochanteric bursitis. – … Read more
– Discussion: – involves a combination of ligamentous injury at inferior portion of SI joint, and verticle fracture of the posterior ilium which extends thru iliac crest; – posterior superior iliac spine remain attached to the sacrum; – often occurs as a part of lateral compression fractures; … Read more
– Discussion: – can reduce back and knee pain; – improved ability to sit for longer periods of time; – increased incidence of dislocation; – indications for conversion: – painful pseudarthrosis – pseudorthrosis rates … Read more
– Anterior Posterior Compression Injuries – Iliac Wing: Fractures – Lateral Compression Injuries – Malgaigne Fracture – Posterior Pelvic Injury – Sacral Fractures – Sacroiliac Fracture Dislocations – Symphysis Pubis Injuries
– Discussion: – deformity is characterized by severe angular deformity with a prominent gibbus at the apex of the curve; – etiology involves either failure of segmentation or defect in formation of vertebral body elements; – defect of formation: – failure of formation of … Read more
– Discussion: – see considerations for sliding screw placement – osseous anatomy of proximal femur dictates where internal fixation device should be placed for maximum purchase in femoral head; – maximum bone density is found in the area where compression & tension trabeculae coalesce in center of head; … Read more
– See: Fasciotomy of the Leg – Discussion: – general discussion of compartment syndrome – compartment syndrome following tibia fractures are most common in closed frx (upto 20% of frx) but may also occur following open frx; – references: – Outcome at 12 to 22 years of 1502 tibial shaft fractures – Compartment syndrome in … Read more
– Discussion: – pathophysiology: – compartment syndrome is elevation of interstitial pressure in closed fascial compartment that results in microvascular compromise; – as duration & magnitude of interstitial pressure increase, myoneural function is impaired & necrosis of soft tissues eventually develops; – intracompartmental pressure: … Read more
– Discussion: – Pavlik harness is seldom effective after 6 months of age; – in children between 6 months and 1 year of age, treatment consists of closed reduction w/ GEA following a period of skin traction & (w/ or w/o) adductor tenotomy (to reduce AVN); … Read more
– See: – Impediments to Reduction in DDH – Traction – Discussion: – Pavlik harness is seldom effective after 6 months of age; – in children between 6 months and 1 year of age, treatment consists of closed reduction w/ GEA following a period of skin traction & adductor tenotomy … Read more