RESULTS OF MARGINAL EXCISION OF GIANT CELL TUMOR OF BONE AT UNCOMMON SITES WITH JOINT RECONSTRUCTION

Giant cell tumor is a common benign tumor of long bone. The treatment modalities include simple curettage with bone grafting and use of adjuvants like liquid nitrogen, phenol etc. in grade 1 and 2 lesions. Grade 3 lesions extend outside the bone and require resection. The joint reconstruction remains a challenge in these young patients. We reported cases of Giant cell tumor of bones at uncommon sites with primary joint reconstruction with arthodesis or arthoplasty and reported good functional outcome in these patients. Purpose: To study the outcome results of GCT with extensive lesion (grade 3) at uncommon sites treated by marginal resection and primary reconstruction of the joint with arthodesis or arthoplasty in rare sites for GCT. Methods: 5 patients with giant cell tumor of bones at uncommon sites underwent wide excision of GCT and reconstruction of joint with arthodesis with autograft or arthoplasty in the prospective study. Functional outcome using MSTS score, complications and recurrence rate were noted for period of two years. Results: The mean MSTS score was 30.2 at 2 years follow up. Three patients reported good functional outcome and two reported fair outcome. The functional outcome in terms of pain and joint mobility was good in all the patients. The two year recurrence rate was not reported in all the patients. Conclusion: Treatment of GCT at uncommon sites with marginal excision and reconstruction of joint by using arthodesis or arthoplasty gives good functional outcome in terms of joint function, pain and recurrence of tumor.