Abstract

A rare primary benign tumor of the bone, referred to as chondroblastoma, is found mostly in older children. Impediment in function and growth happen owing to the occurrence of the tumor near a joint or growth plate. Our patient, aged 16 years, presented with a right-sided knee joint pain and swelling for the last 4 months. An X-ray and MRI were done, and the patient was treated with intralesional curettage and saucerization with an open medial knee approach. The bone defect was filled with 2.5 cc bioactive synthetic bone graft. Patient recovered completely by 1 year, postsurgically. Diagnostic feature of chondroblastoma is its invariable location within an epiphysis or apophysis. The lesion is typically diagnosed by X-ray and MRI. Intralesional curettage and reconstruction with autogenous or allogeneic bone graft gives the best results. A separate needling may not be a necessary step to diagnose first and, then, actively manage chondroblastoma. With a typical clinicoradiological correlation, a one-stage definitive curettage and bone supplementation suffices. A secondary chondral defect filling technique is not required.