Omental flap for treatment of spondylodiscitis with lumbosacral dehiscence: A case report.

We report a case of pedicled omental flap use together with osteosynthesis treatment of a chronic L4-L5 spondylodiscitis due to a large sacral eschar. The 43-years-old patient was paraplegic and had depleted regional flaps solutions due to multiple previous surgeries. The procedure was carried out in supine position then in prone position whereby the dissected flap was recovered through the spine. The surgery was performed by a multidisciplinary team. First, we used an anterior approach for spine osteosynthesis with a metal implant and flap harvest. Then, in a prone position, we completed the vertebral reconstruction by an L3 athrodesis to the pelvis. The flap was recovered through the spine defect, on the side of the implant. It was a right sided pedicled. Complete wound healing was 120 days. The omental flap proved to be a reliable solution in the absence of recipient vessels for free flap transfer and depleted regional flap solutions. It also spared the latissimus dorsi muscle required for a wheelchair user as in our case. The omental flap is still performed in spine surgery especially in oncologic context to prevent wound dehiscence and for spondylodiscitis coverage. The anterior approach allows for both spine osteosynthesis and flap dissection.

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