– Discussion: – easiest method to measure leg lengths is the measure the distance from the ASIS and a marked point on the knee; – measurement is made using the cautery cord; – the thigh must be in the exact same position each time the length is measured; – steinman pin method: – separate posterior … Read more
– See: – radiographic templating of femoral neck cut – femoral component offset – Discussion: – femoral neck cut will influence leg length, caput collum diaphysis (CCD) angle, and offset; – base of the femoral neck (“the shoulder”) is used as a reference for appropriate level of osteotomy; – Exposure: … Read more
– See: Total Hip Replacement Menu: – IntraOperative Frx: – frx may occurr early while the attempt to dislocate hip is made; – most postoperative femoral fractures can be prevented by avoiding injury to the bone during the original THR procedure; – bone lysis from secondary aseptic loosening may significantly compromise strength of the femur … Read more
– See: Total Hip Replacement Menu: – Discussion: – natural history of DDH: – acetabular rim syndrome: – results from dysplastic hip, which stresses the labrum, resulting in labral degeneration; – hip arthroscopy and debridement in these patients may provide the patient w/ a few … Read more
– Discussion:: – iliotibial band (and thin fascia covering maximus) are incised in line w/ the incision; – in most cases, the hip is kept in midflexion for both the skin incision and the IT band incision; – if the hip is repositioned in extension … Read more
– Patient Position: – ensure that patient has not rotated anteriorly, for this may allow acetabular component to be placed in retroverted position; – ensure that patient’s torso is not tilted inferiorly (as can occur from a bean bag), as this can cause reaming in an excessive … Read more
– Femoral Anteversion: – femoral version is defined as the angular difference between axis of femoral neck and transcondylar axis of the knee; – normal values: – on average, femoral anteversion ranges from 30-40 deg at birth and decreases progressively throughout growth to about 15 deg at skeletal maturation; – … Read more
– See: Total Hip Replacement Menu / acetabular component revision: – Surgical Technique: – preoperative planning: – acetabular biomechanics: – operative considerations for hip dyplasia – protrusio – types of components: … Read more
– See: Iliotibial Band Syndrome – General Anatomy: – origin: – anterior iliac crest outer lip, anterior border of the ilium, outer surface of anterior superior iliac spine; – insertion: – iliotibial band of fascia lata on lateroanterior aspect of thigh, … Read more
– Discussion: – considerations: – removal of press fit components can often be complicated by heavy bone ingrowth, insertion of under-reamed components, or insertion of oversized peripherally oversized cups; – acetabular exposure: … Read more