Our center has performed hip replacement arthroplasties since 1997. The purpose of this study was to assess the long term clinicoradiological results of a total hip replacement using the double tapered Mallory-Head system.

The results of a consecutive series of 81 total hip replacements in 75 patients were reviewed three to eleven years (average eight years) postoperatively. The diagnosis were avascular necrosis for 46 hips (57%), osteoarthritis for 12 hips (15%), RA for 9 hips (11%), and others. The clinical result was evaluated on the basis of the modified Harris hip score, modified Merle d’Aubigné-Postel score. A detailed radiographic analysis was also performed.

The average modified Harris hip score improved from 56 points to 92 points. The average modified Merle d’Aubigné-Postel score was 15 points at the latest follow up, and 55 hips(68%) were classified as the clinical grades of excellent or good results. Two acetabular components were revised because of loosening, and one was revised because of recurrent dislocation.

We concluded that the clinical and radiological evaluations of the total hip replacements, using the Mal-lory-Head system showed good results with mid-term follow-up.