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Pre-coated femoral components in hybrid total hip arthroplasty

RESULTS AT 11 YEARS

Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2-1-1-1, Asahikawa 078-8510, Japan.

A. Minami, MD, Professor and Chairman

Department of Orthopaedic Surgery, Hokkaido University School of Medicine, Kita-ku Kita-15 Nishi-7, Sapporo 060-8638, Japan.

Correspondence should be sent to Professor H. Ito; e-mail: itobiro{at}asahikawa-med.ac.jp

We present the medium-term results of hybrid total hip arthroplasties using pre-coated stems with a second-generation cementing technique. The 128 hips in 111 patients (18 men and 93 women) were followed up at a mean of 11 years after surgery. The mean age at the time of surgery was 61 years. Both components of one hip were removed at ten months after surgery for infection. None of the other 127 femoral components showed possible, probable, or definite loosening at the most recent follow-up. Five acetabular components were revised for aseptic loosening, recurrent dislocation, or displacement of the polyethylene liner from the metal shell. The mean Harris hip score at follow-up was 84 points. A pre-coated femoral component with a second-generation cementing technique provides good clinical function and survival in the medium term.