PT - JOURNAL ARTICLE AU - Ameya S. Kamat AU - Mohammed Zahier Ebrahim AU - Adriaan J. Vlok TI - Thoracic disc herniation: An unusual complication after prone positioning in spinal surgery AID - 10.14444/3039 DP - 2016 Jan 01 TA - International Journal of Spine Surgery PG - 39 VI - 10 4099 - http://ijssurgery.com//content/10/39.short 4100 - http://ijssurgery.com//content/10/39.full SO - Int J Spine Surg2016 Jan 01; 10 AB - Neurological complications of the prone position have been well documented. Post-operative paraplegia and neurological deterioration unrelated to the site of surgery after proning in spinal surgery is a rare but potentially devastating complication. We describe the case of a 47 year old female who underwent an L4/5 discectomy and posterior instrumented fusion. A few hours after surgery she developed bilateral lower limb weakness with a T11 sensory level. Post-operative MRI revealed an acute disc herniation at the T11/12 level with associated spinal cord compression. This was not present on the pre-operative imaging. A subsequent T11/12 discectomy and instrumented fusion was performed and the patient's motor and sensory function returned to normal.