Osteochondroma of Lower Dorsal Spine in Hereditary Multiple Exostosis Causing Spinal Cord Compression: A Brief Review

Introduction: The most common benign bone tumours are osteochondroma and exostosis, which usually occur in the long bones and are only rarely found in the spine. They have a predilection for the cervical region when found in the spine. They come in two varieties: solitary and multiple hereditary. We have reported here a case of spinal cord compression due to osteochondroma, and its functional outcome, arising from the T-12 vertebral body and left pedicle in a 13-year-old female who presented to us with spastic paraparesis. Posterior approach was taken and tumour mass was removed including lamina and pedicle of the 12th thoracic vertebrae on the left side along with cartilaginous cap. The patient was able to ambulate on her own without any support at 2 months after surgery and there was full neurological recovery after 1 year postoperatively.