HA-coated screws decrease the incidence of fixation failure in osteoporotic trochanteric fractures

Antonio Moroni, Cesare Faldini, Francesco Pegreffi, Sandro Giannini

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalClinical Orthopaedics and Related Research
Issue number425
Publication statusPublished - Aug 2004

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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