Extensive Wounds of the Spine

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Abstract
Extensive wounds involving the spine (greater than three vertebral segments exposed) may threaten its indispensable roles of biomechanical support and vital neurologic function. Although there have been select reports of specific flap applications in this body region in the reconstructive surgical literature, there has been a paucity of comprehensive descriptions of pertinent anatomy, pathophysiology, and the perioperative care of such patients—including the degree to which the spine is suited to aggressive debridement. Four patients with complex spine wounds involving greater than three vertebral segments were treated by the authors from 1986 through 1988. These patients ranged from 28 to 80 years of age. They were all found to have multiple risk factors, including neoplasm (4), severe nutritional depletion (3), advanced age (2), wound sepsis (2), and multiple other general medical problems (4). All patients underwent wide bony and soft-tissue debridement. A new clinically essential four-pillar concept of spinal support predicted spinal instability in two of the four patients. These patients could thus be protected from neurologic compromise with internal stabilization (1) or external orthotic support (1). Wound closure was achieved with skin graft (1) or traditional or extended musculocutaneous flap coverage (3). With 7 to 20 months of follow-up, wound healing has been complete in all patients despite a 100 percent complication rate and one late postoperative death. Multisegment spine wounds tend to arise in the setting of multiple medical problems or risk factors. Despite these risk factors and a high postoperative complication rate, gratifying results may be achieved in these patients with a comprehensive understanding of regional surgical anatomy and a multidisciplinary approach to their care.

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