Sommerfeldt Mark F, Magnussen Robert A, Randall Kyle L, Tompkins Marc, Perkins Bryan, Sharma Avijit, Blackwell Ryan, Flanigan David C
Department of Orthopaedics, The Ohio State University, Columbus, Ohio.
Department of Orthopedic Surgery, Avita Health System, Ontario, Ohio.
J Knee Surg. 2016 Nov;29(8):645-648. doi: 10.1055/s-0035-1569480. Epub 2016 Jan 4.
It is unknown whether body mass index (BMI) influences outcomes of meniscus repair. We hypothesized that increased BMI would be associated with increased risk of failure. A retrospective study was performed involving patients who had undergone meniscus repair between 2008 and 2012. Chart review and phone interviews were conducted to determine which patients required additional surgery. Patients were categorized as normal BMI (<25) or increased BMI (≥25). Of the 305 patients who met study criteria, 216 (70.8%) were available for follow-up at a mean of 19 months postoperatively. A total of 100 patients (46.3%) had a BMI <25 and 116 (53.7%) patients had a BMI ≥25. BMI was less than 35 in 90% of patients. Thirty-four patients (15.7%) required further surgery for a repair failure. Failure occurred in 20 patients (20%) in the normal BMI group and 14 patients (12%) in the increased BMI group ( = 0.14). Logistic regression revealed a trend toward decreased odds of repair failure in the increased BMI group (odds ratio: 0.46; 95% confidence interval: 0.20-1.05; = 0.065). Patients with a BMI ≥25 did not have a higher risk of meniscus repair failure relative to those with a BMI <25. Given these findings, surgeons should not consider moderately increased BMI as a contraindication to meniscal repair. The effect of BMI greater than 35 on outcomes of meniscal repair remains unclear and warrants further study.
体重指数（BMI）是否会影响半月板修复的结果尚不清楚。我们假设BMI升高会增加失败风险。我们进行了一项回顾性研究，纳入了2008年至2012年间接受半月板修复的患者。通过查阅病历和电话访谈来确定哪些患者需要再次手术。患者被分为正常BMI（<25）或升高BMI（≥25）。在符合研究标准的305例患者中，216例（70.8%）在术后平均19个月时可供随访。共有100例患者（46.3%）BMI<25，116例（53.7%）患者BMI≥25。90%的患者BMI小于35。34例患者（15.7%）因修复失败需要进一步手术。正常BMI组有20例患者（20%）出现失败，升高BMI组有14例患者（12%）出现失败（P=0.14）。逻辑回归显示，升高BMI组修复失败的几率有降低趋势（比值比：0.46；95%置信区间：0.20-1.05；P=0.065）。与BMI<25的患者相比，BMI≥25的患者半月板修复失败风险并未更高。基于这些发现，外科医生不应将中度升高的BMI视为半月板修复的禁忌证。BMI大于35对半月板修复结果的影响仍不清楚，值得进一步研究。
