MODULAR UNCEMENTED PROSTHETIC RECONSTRUCTION AFTER RESECTION OF TUMORS OF THE DISTAL FEMUR

We report the use of the uncemented Kotz modular femur and tibia recon struction system after 95 distal femoral resections performed from 198 3 to 1989. The average follow-up was 51 months; 62 patients had at lea st 36 months' follow-up and 36 at least 60 months. Complications requi red reoperation in 55%. The postoperative infection rate was 5% for pr imary cases, 6% for revision cases, and 43% for revision of previously infected cases. The polyethylene hushes failed in 42% of cases at an average of 64 months postoperatively. Stem breakage occurred in 6% and was associated with the use of narrow stems and extensive quadriceps excision. The radiological results were excellent or good in most case s and were related to the initial screw fixation, but not to age, chem otherapy, length of resection or size of stem. The clinical results we re excellent or good in 75%, failure usually being associated with a c omplication, especially infection.