Reconstruction of lower end of radius using vascularized upper end of fibula

Abstract

Background: Giant cell tumor is a fairly common locally invasive tumor in young adults. The lower end of the radius is the second commonest site for this tumor. The most common treatment for this tumor is curettage with or without bone grafting but it carries a signi›cant rate of recurrence. Excision is the treatment of choice, especially for cases in which the cortex has been breached. After excision of the distal end of the radius, different procedures have been described to reconstruct the defect of distal radius. These include partial arthrodesis and hemiarthroplasty using the upper end of the ›bula. The upper end of the ›bula has a morphological resemblance to the lower end of the radius and has been used to replace the latter. Traditionally it was used as a ”free‘ (non-vascularized) graft. More recently the upper end of the ›bula has been transferred as a vascularized transfer for the same purpose. Though vascularized transfer should be expected to be more physiological, its superiority over the technically simpler non-vascularized transfer has not been conclusively proven. Materials and Methods: Two patients are presented who had giant cell tumor of distal radius. They underwent wide local excision and reconstruction with free vascularized upper end of the ›bula. Result: Follow-up period was two and a half years and 12 months respectively. Both patients have returned to routine work. One patient has excellent functional result and the other has a good result. Conclusion: Vascularized upper end of ›bula transfer is a reliable method of reconstruction for loss of the distal end of the radius that restores local anatomy and physiology.