Lumbo-Pelvic Dissociation in a Patient With Complex Spinal Deformity: A Case Report.

Lumbopelvic dissociation is an extremely rare injury to the junction of the lumbar spine and sacrum seen in high-energy trauma, for which the operative treatment has not been established, especially in the setting of hardware infection. In this case report, we describe the case of a 37-year-old male who presented to the spine surgery team after undergoing six surgeries, all following a traumatic car accident ten years prior. The patient initially presented with symptomatic lumbar hyperlordosis that had progressively limited his ability to perform activities of daily living. He suffered from paraplegia and a sensory deficit at the T8 level and below but still maintained control over his bowel and bladder. The surgical team performed two operations: one to improve his quality of life by correcting the degree of lordosis he was suffering from due to a 76-degree sacral slope and the second to perform re-instrumentation after the patient suffered a traumatic injury three weeks after the initial operation that occurred after assisting with his own wheelchair transfers. His prior surgeries include operations for deformity correction as well as irrigation and debridement secondary to hardware infection and subsequent removal. He reported that following the hardware removal he had significant pain and was no longer able to easily sit and play with his child or reach countertops while in his wheelchair, severely impacting his quality of life. The surgical team performed two operations on this patient: the first to correct the lordotic deformity utilizing a four-rod construct, and a second performed three weeks later to perform re-instrumentation utilizing a five-rod construct and hematoma evacuation following hardware failure secondary to high biomechanical strain from performing his own wheelchair transfers.