Results of dynamic condylar screw for subtrochanteric XXXX .

@entity1 @entity174
A consecutive series of 58 @entity1 , treated with the dynamic condylar screw (DCS) for subtrochanteric @entity174 were retrospectively reviewed. The mechanism of injury was low-energy in 47 cases and high-energy in 11 cases. Five @entity1 died before @entity174 healing. Ten out of 11 young @entity1 , (nine with high-energy injuries), united primarily. In contrast, the primary union rate in the elderly was 74%. Implant failure was seen in 11 cases (20%). Restricted weight bearing status post-operatively was associated with significantly lower incidence of implant failure (P<0.05, chi(2)-test). The use of bone graft was not related to @entity174 union (P>0.5). After revision surgery the overall union rate in the elderly was 90%. Using the DCS, the results were good in the young @entity1 with high-energy injuries. However, the implant failure rate is high in elderly @entity1 who suffer low-energy @entity174 . The DCS should not be used if weight bearing cannot be minimized in this group.
