• Jiashi Song, Bing Liu, Kaipeng Jin, and Quan Yao.
• Department of Orthopedics, Zhejiang Rongjun Hospital, Nanhu District, Jiaxing, Zhejiang, PR China.
• Medicine (Baltimore). 2024 Dec 13; 103 (50): e40960e40960.

RationaleWe first report a unique case of proximal femoral Giant cell tumor of bone, a subtrochanteric lesion associated with femoral neck and intertrochanteric involvement. We chose a completely new surgical approach to treat the primary tumor and preserve the hip joint. No cases of this type have ever been reported.Patient ConcernsThe patient, a 26-year-old man, came to our hospital for treatment of right hip pain more than 4 months ago, had no family history of similar diseases.DiagnosesBased on the imaging results and pathology, a diagnosis of Giant cell tumor of bone was confirmed.InterventionsBased on the imaging grade and patients' wishes, the tumor managed by extended curettage and reconstructed with a fibular strut allograft and long intramedullary interlocking nail was used for prophylactic fixation of fractures. The patient did not undergo disuzumab.OutcomesAfter 40 months of follow-up, although the bone defect finally reached bone healing, the hip function was good, and the tumor did not recur, there were signs of internal fixation loosening at 12 months of the surgery.LessonsFor young patients with imaging grade <3 who need limb salvage, fibular strut allograft and intramedullary nail-fixation are also an alternative treatment option for hip reconstruction after tumor surgery when the lesion involves the entire proximal femur.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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