This study was to evaluate the safety and efficacy of free nonvascularized fibula autograft in the treatment of the femoral neck tumor-like lesions before epiphyseal closure in pediatric patients, by presenting the clinic-radiological outcome and complications.

Inclusion Criteria:

1. This retrospective study included pediatric patients before epiphyseal closure with tumor-like lesions in femoral neck.

Exclusion Criteria:

1. pediatric patients with tumor-like lesions in femoral neck after epiphyseal closure;
2. pediatric patients with benign bone tumors and malignant bone tumors in the femoral neck after epiphyseal closure;
3. adult patients with benign or malignant bone tumors and tumor-like lesions in femoral neck.