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The Journal of Bone & Joint Surgery British Volume
Vol. 72-B, Issue 1 | Pages 26 - 31
1 Jan 1990
Davis T Sher J Horsman A Simpson M Porter B Checketts R

In a prospective study we assessed the causes of mechanical failure in a series of 230 intertrochanteric femoral fractures which had been internally fixed with either a sliding hip screw or a Kuntscher Y-nail. The overall rate of mechanical failure was 16.5%; cutting-out of the implant from the femoral head was the cause in three-quarters of the instances. Implants placed posteriorly in the femoral head cut out more often (27%) than those placed centrally (7%). The cut-out rate was also determined by the quality of the fracture reduction, but age, walking ability and bone density (assessed by the Singh grade and metacarpal indices) had no significant influence. We conclude that these fractures should be reduced as accurately as possible and it is imperative that the implant is placed centrally within the femoral head.


The Journal of Bone & Joint Surgery British Volume
Vol. 66-B, Issue 2 | Pages 180 - 183
1 Mar 1984
Nutton R Checketts R

A series of 167 patients with Charnley-type total hip replacements were studied retrospectively to determine the incidence of trochanteric non-union, the degree of postoperative trochanteric displacement, and the relation between these two complications. The power in the hip abductor muscles, measured with a load-cell device, was significantly reduced if the trochanteric fragment had displaced proximally by more than 3 cm; 12% of those studied fell into this group and, as a consequence, had a poorer result. It was concluded that displacement of the trochanter was of greater importance than bony union in determining function in the replaced hip. Because these unwanted problems may compromise an otherwise successful operation, it is suggested tentatively that trochanteric osteotomy should be abandoned except for difficult primary operations or for revision procedures.