Proximal Tibial Osteochondroma Leading to Chronic Compartment Syndrome

Osteochondroma is the most common benign tumour of bone seen in 3% of the general population. Complications such as neurological compromise, skeletal defects, vascular lesions, and compartment syndrome occur in about 4% of osteochondromas. We bring forth the case of a 16-year male who presented with the complaints of swelling in calf region associated with symptoms of claudication and paraesthesias in leg after exertion and absence of any such complaints at rest. Radiographs revealed a bony pedunculated mass originating from the posterior tibial metaphyseal region causing compression of posterior soft tissue structures. Excision biopsy of the mass was done by posterior approach with an L-shaped incision. The aim of this case report was to draw attention to the early signs of vascular compromise by osteochondroma in this region in order to prevent serious complications in future by early decompression.