The two- to six-year results with a proximally modular noncemented total hip replacement used in hip revisions

A review of the two- to six-year results of revision cases using a proximally modular noncemented total hip replacement has been carried out. There were 91 cases. A primary stem was used in 29 and a long curved revision calcar replacement stem in 62. The results of the primary cases were 80% excellent, 6% good, 9% fair, and 5% poor. In the revision stem cases, 69.4% were excellent, 11.5% good, 7.6% fair, and 11.5% poor. One primary stem case was revised for acetabular migration. Ten of the revision stem cases were rerevised, four for femoral perforation, three for sepsis reactivation, one for acetabular migration, one acetabular component for dislocation, and one stem for trochanteric nonunion. There have been no stems or sleeve fractures, no implant dissociations and no osteolysis. In those reexplored, no metallosis has been found. Only three cases required structural allografting on the femoral side. These early results are promising and no untoward reactions have occurred as the result of the use of a modular stem.