Surgical Treatment of Juvenile Hip Chondroblastoma Using Mosaicplasty: A Case Report

Chondroblastoma is a generally benign tumor occurring at a young age; however, its location near a joint and its tendency to recur make the treatment particularly challenging. This is especially true in the case of its occurrence in the hip joint. Surgical removal—curettage—is the primary method, but the remaining defect can be filled with several methods depending on the size of the tumor. The approach to the lesion is another difficulty. There are several available options, but due to the characteristics of the blood supply to the joint, this is a significant risk. In our case, we used an open autologous osteochondral graft transplantation (mosaicplasty) to treat juvenile hip chondroblastoma in a young female patient, for which the ipsilateral knee joint served as the donor area. The patient was followed up for 3 years after surgery, and, in addition to physical examinations, numerous imaging studies were performed to exclude local recurrence or avascular necrosis in the femoral head and to ensure that the congruence of the implanted osteochondral grafts was maintained.