膝関節周囲骨腫瘍に対する人工膝関節を用いた患肢温存手術

抄録

We evaluated 10 cases of endoprosthetic reconstruction for selected bone tumors of the distal femur and proximal tibia. Kotz Modular Femur and Tibia Reconstruction (KMFTR) system were used in 9 patients and Kyo- cera Tumor Prosthesis were used in 1 patient.
The average age of the patients was 59.3 years, and the average duration of follow-up was 43.5 months. Patients were assessed according to their latest condition and both the radiological results and the functional results were exellent or good in most cases. Considering that the KMFTR system is a monocentric simple hinge joint, these results were better than we expected.
The major complication was breakage of the polyethylene hinge bushes, although improvement of this technical problem was carried out in 1992.
The KMFTR system is satisfactry for limb-salvage surgery although careful consideration of indications is required. However we prefer arthrodesis using banked bone in younger patients who are considered to be curable.