SHORTAND MIDDLE-TERM RESULTS OF HIP ARTHROPLASTY FOR TUMORS OF THE PROXIMAL FEMUR

A purpose of the study was to evaluate the immediate and medium-term outcomes of the treatment of patients with primary tumor lesions of proximal femur after the lesion resection together with total hip arthroplastyby total revision systems. Material and methods. 34 patients with primary tumors of proximal femur [chondrosarcoma - 9 (26.5%),giant cell tumor - II (32.4%),osteosarcoma - 2 (5.8%), other malignancies - 5 (14.7%),benign neoplasms - 7 (20.6%)] underwent the conserving surgery at R.R. Vreden Russian Research Institute of Traumatology and Orthopedics since 2003 through 2013. The follow-up was from one to five years. The age of patients ranged from 16 to 70 years, patients younger than 40 years accounted for 61.8%. Acetabulum was replaced by standard components. To replace post-resection defects of proximal femur, in 21 (61.8%) patents revision legs of cementless fixation Wagner Revision (Zimmer) were used, in 10 (29.4%) - “Fenix”, and in 3 (8.8%) - Solution (DePuy, J&J). Results. A technique of total hip arthroplasty with the use of revision systems demonstrated excellent and positive results in 32 (94.2%) cases. Complications leading to revision surgery occurred in 3 (8.8%) patients. Conclusion. The method allows achievement of favorable functional outcomes and early patients’ activation without worsening the oncologic component of treatment and being not inferior to expensive modular systems.