FEBRUARY 2012 | Volume 35 • Number 2 ■ Case Report abstract Full article available online at ORTHOSuperSite.com. Search: 20120123-20 Chondroblastomas are rare tumors that present in the epiphysis of the long bones. Bone grafting following aggressive surgical curettage has yielded the best results. When present in the femoral head, they pose a higher risk of recurrence due to the difficulty of achieving an adequate resection without destroying the structural integrity of the weight-bearing surface. This article describes a case of surgical treatment of a chondroblastoma of the femo- ral head with the use of a free vascularized fibula graft. A 26-year-old woman had several months of increasing left hip pain and decreased range of motion. Imaging studies confirmed a large bubbly lesion with sclerotic borders in the left femoral head consistent with chondroblastoma. After performing an aggressive and complete exci- sional biopsy, a large cavitary defect remained in the femoral head. Reconstruction of the defect and structural support was achieved using a free vascularized fibula. Nine years postoperatively, the patient had full hip motion, no pain, and no radiographic evidence of collapse. A free vascularized fibula graft is an excellent option for the re- construction of a large femoral head defect after chondroblastoma resection. Dr Riedel is from the Department of Orthopedics, Loma Linda University School of Medicine, Loma Linda, and Drs Franklin and Stevanovic are from the Department of Orthopedics, University of Southern California, Keck School of Medicine, Los Angeles, California; and Dr Seal is from the Department of Plastic Surgery, University of British Columbia, Vancouver, British Columbia, Canada. Drs Riedel, Franklin, Seal, and Stevanovic have no relevant financial relationships to disclose. Correspondence should be addressed to: Barth Riedel, MD, Department of Orthopedics, Loma Linda University School of Medicine, 11406 Loma Linda Dr, Ste 218, Loma Linda CA, 92354 (drbarthriedel@gmail.com). doi: 10.3928/01477447-20120123-20 Free Vascularized Fibula Graft to Treat Chondroblastoma of the Hip BARTH RIEDEL, MD; CORINNA FRANKLIN, MD; ALEX SEAL, MD; MILAN STEVANOVIC, MD e259 Figure: Anteroposterior radiograph of the left hip 7.5 years postoperatively showing minimal joint arthrosis, no femoral head collapse, and good in- corporation of the free vascularized fibula graft.