• T Yonemoto, S Tatezaki, and T Ishii.
• Division of Orthopaedic Surgery, Chiba Cancer Center, 666-2 Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan. tyonemot@chiba-cc.pref.chiba.jp
• Anticancer Res. 2001 Jan 1;21(1B):717-22.

BackgroundIn addition to the wide excision of malignant musculoskeletal tumor around the knee joint, surgical methods, such as total knee arthroplasty and knee rotation-plasty are available. Therefore, this study was undertaken to clarify the usefulness of knee rotation-plasty.Materials And MethodsAt the Chiba Cancer Center, knee rotation-plasty was performed in 27 patients with malignant musculoskeletal tumor around the knee joint. Patients were divided into two groups: Group S, in which operations were performed as salvage surgery (8 patients), and Group I, in which operations were performed as initial surgery (19 patients). The lower limb function was investigated in 17 patients (7 patients in Group S and 10 patients in Group I). The lower limb function was assessed by the Knee Evaluation System of International Symposium on Limb Salvage and the Knahr's assessment.ResultsLower limb function in Group S measured an average of 25.7 points (85.6%), while the lower limb function in Group I measured an average of 23.6 points (78.7%). The majority of patients in both groups were capable of walking without a cane or doing light exercise with below-the-knee prosthesis, revealing good lower limb function.ConclusionWhether it is performed as salvage or initial surgery, knee rotation-plasty can be useful method for reconstruction of the knee after wide excision of malignant musculoskeletal tumor around the knee joint.

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