Efficacy of Flap-based Posterior Trunk Reconstruction after Vertebrectomy and Radiation Therapy: A Retrospective Cohort Study

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Background: Adjuvant radiation therapy following vertebrectomy is a major risk factor for local wound complications such as dehiscence, infection, and skin necrosis. In selected cases, well-vascularized coverage and modification of tension forces on the wound might reduce the risk of postoperative complications and reoperations. We aimed to demonstrate a reduction in general and specific complications in patients undergoing vertebral resection and flap coverage compared with vertebral resection alone. Methods: We retrospectively analyzed and collected data from patients diagnosed with a tumor involving the spine and requiring a total or partial posterior vertebrectomy between January 2012 and October 2022, referred to a single tertiary-level orthopedic and trauma center. We included only patients in whom primary closure of the wound was possible but judged to be under excessive tension. Results: A total of 145 patients underwent partial or total vertebrectomy for oncological reasons at our tertiary-level trauma hospital. Among these, 73 patients were eventually included according to the inclusion and exclusion criteria: 53 in the orthopedic group and 20 in the orthoplastic group. Considering only patients undergoing radiation therapy, the orthoplastic group showed significantly lower rates of overall complications (33% versus 69%) than the orthopedic group. Conclusions: Primary flap coverage, especially in patients receiving RT, reduces the risk of postoperative complications and avoids a second reconstructive operation, consequently reducing patient discomfort, length of hospital stay, and healthcare costs.

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