A Combination Technique for Accurate Location and Debridement of Pathological Lesion in Femoral Head

Debridement with bone grafting is a feasible and effective joint preserving method for early stage avascular necrosis and benign tumor of the femoral head before collapse. Although common CT and X-ray guide techniques were helpful, high dose of intraoperative radiation, inaccurate intraoperative location of pathological region, unverifiable of debridement, and longer operative duration still challenge the surgeons during the operation. With the development of new medical technology and instrument, a combination technique employing 3-D navigation endoscopy could overcome above mentioned drawbacks during the operation; and can also provide satisfactory clinical effect. This method has not been described in previous literature. Key Words: 3-D navigation, Endoscopy, Femoral head, Debridement.