Comments by Dr. Vijay Bose
The ganz trochanteric flip is an excellent approach for doing open FAI surgery, for fixing fracture on the femoral head ( pipkin #) and for doing osteotomy of the femoral neck in post SUFE situations. In these non – arthritic situations a surgical dislocation of the hip is warranted without damaging the blood supply and I employ it routinely for these indications.
However its use in hip resurfacing is a bit of an overkill. It has been documented without a shadow of doubt that the post approach does not compromise the vascularity of the femoral head in an arthritic hip after resurfacing. Thousands of patients who have crossed the 10 yr mark with the post approach & BHR bear testimony to this.
Doing the ganz for resurfacing is a much more morbid procedure than a standard post approach. Any osteotomy will take more time to heal and recover function. The extended trochanteric osteotomy ( ETO) which is the bigger version of the Ganz flip will take about 6 months for the patient to regain function.
Intuitively the Ganz looks appealing as regards preserving blood supply but this issue is not relevant in an arthritic hip.
with best regards