This study was done to determine if elderly patients with trochanteric fractures and with osteoporosis could benefit from treatment with a dynamic hip screw fixed with HA-coated AO/ASIF screws. One hundred twenty patients with AO, A1, or A2 trochanteric fractures were selected. Patients were divided into two groups and randomized to receive a 135°-four-hole dynamic hip screw fixed with either standard lag and cortical AO/ASIF screws (Group A), or HA-coated lag and cortical AO/ASIF screws (Group B). Lag screw cut-out occurred in four patients in Group A, but not in any patients in Group B. In Group A, the femoral neck shaft angle was 134° ± 5° postoperatively and 127° ± 12° at 6 months. In Group B, the femoral neck shaft angle was 134° ± 7° postoperatively and 133° ± 7° at 6 months. The Harris hip score at 6 months was 60 ± 25 in Group A and 71 ± 18 in Group B. The superior results of Group B can be attributed to the increased screw fixation provided by the HA-coated screws. We recommend lag screws coated with HA for dynamic hip screw fixation, especially in osteoporotic bone.
|Number of pages||6|
|Journal||Clinical Orthopaedics and Related Research|
|Publication status||Published - Aug 2004|
ASJC Scopus subject areas
- Orthopedics and Sports Medicine