[Surgical treatment for malignant soft tissue tumors of the hip]

Surgical treatment for malignant soft tissue tumors has resulted in a marked improvement in the grading of lesions, utilizing the surgical staging system introduced by Enneking. We attempted to divide malignant soft tissue tumors of the hip into four compartments; the anterior compartment, medial compartment including the neovascular bundle, posterior compartment including the sciatic nerve, and intra-bony lesions with tumors. A lesion localized in the anterior compartment would be resected with a wide margin. For resection of a lesion localized in the medial compartment, vascular reconstruction must be performed with replacement using artificial vessels for the femoral vein and the saphena magna femoral artery. As for the posterior compartment, for the lesions are easily resected with or without the sciatic nerve. In the last compartment of intra-bony lesions, disarticulation or endoprosthesis replacement after wide-resection surgery must be performed. In such cases, musculocutaneous reconstruction may be needed.