Effectiveness of Surgical Drains in Obese Patients Undergoing Lumbar Discectomy.

Background The placement of postoperative drains after spine surgery is a contentious issue, and its application has changed over time. Obesity itself is an independent risk factor for postoperative complications. Hematomas in the surgical wound are a complication that may necessitate revision surgery. Orthopaedic surgeons frequently use closed drainage in orthopaedic surgery to prevent the formation of a hematoma. It remains unclear whether drains reduce postoperative complications and improve clinical outcomes, especially in obese patients who are already at risk of such complications. Objectives To assess the incidence of surgical site infections (SSI) after lumbar discectomy in obese and morbidly obese patients with or without postoperative wound drainage and compare functional outcomes between both groups. Methodology A hospital-based retrospective study was conducted among 84 patients with obesity who underwent single-level lumbar discectomy at R. L. Jalappa Hospital and Research Centre, Kolar, India from May 2022 to April 2023. Drains were used for patients in Group A and avoided for patients in Group B. Results Postoperative C-reactive protein (CRP) levels in the non-drainage group were much higher than in the drainage group and were statistically significant. There was a statistically significant association found between body mass index (BMI) and postoperative SSI. In Group A, only three patients had SSI while in Group B, eight patients suffered from SSI. Conclusion Closed suction drains were shown to have a positive impact in reducing SSI in patients with obesity. Drain tip culture may be beneficial in detecting SSI at the earliest. Hence, we believe that closed suction drainage can be considered as a standard protocol in obese patients.