Spondylolysis of the Thoracic Spine with Instability: A Rare Cause for Myelopathy.

Spondylolysis is an anatomical defect or stress fracture of the pars interarticularis and usually reported in the lumbar region. This case of T11 spondylolysis in association with thoracic stenosis, spinal instability, and myelopathy is highlighted for its rarity and to reiterate the need for high index of suspicion among surgeons for the timely diagnosis.