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Acute spondylodiscitis - A rare presentation of sacrocolpopexy complicated with chronic left iliac fossa discharging sinus

Spondylodiscitis following sacrocolopopexy is a rare complication. Many cases of spondylodiscitis are preceded by infection elsewhere, most commonly the genitourinary tract. Inadvertent placement of bone anchors into the L5-S1 disc space likely results in an L5-S1 inflammatory process with infection often tracking along the suspension sutures attached to the bone anchors. Commonly onset of spondylodiscitis is in <1 year of index surgery (average 4 months) but is reported as late as 8 years. However, the patient presenting with chronic discharging sinus (6 years) and acute spondylodiscitis following sacrocolpopexy is not reported in the literature to the best of our knowledge. To report a case of lumbosacral (L5-S1) discitis in a patient who had a discharging sinus at the left iliac fossa following a sacral colpopexy procedure 6 years back. A 44-year-old female underwent laparoscopic sacral colpopexy for uterovaginal prolapse approximately 6 years back. Approximately 4 months after the surgery, she had abdominal pain and fever, followed by discharge from the left iliac fossa. She presented to the spine surgery outpatient department with severe back pain and difficulty in walking for the last 2 weeks. Magnetic resonance imaging revealed L5-S1 spondylodiscitis. She was managed collectively by a spine surgeon, gynecologist, and gastro surgeon. The principal aims of surgery are to debride infected disc tissue, which is avascular, and excision of the sinus tract along with the removal of the sling along with its anchor. To minimize L5-S1 spondylodiscitis during sacrocolpopexy, it is recommended to start the presacral dissection at the sacral promontory, which generally lies just below the steep lumbosacral angle.