Anterior approach for total hip arthroplasty conversion of hip fusion.

PURPOSE: Hip fusion conversion has shown mixed results, in particular a higher rate of failure than primary total hip replacement. Conversion is usually carried out by a lateral approach.

METHODS

We reported a series of 37 hip fusion conversions performed by an anterior approach. Clinical and radiographic outcomes of this unusual approach were reported at eight years of follow up.

RESULTS

At eight years of follow up, survivorship was 86. 6 % (IC 95 %: 62.4-95.7 %). Sixteen patients reported good relief of the pre-operative back spine or knee pain. PMA score was significantly improved. Two implant aseptic loosenings needing revision surgery were reported.

CONCLUSION

The anterior approach seemed to be as good as the other hip approaches for hip fusion conversion to total hip replacement.