High BMI as a Risk Factor for Venous Thromboembolism in Middle-Aged and Older Patients Undergoing Isolated Medial Meniscus Repair: A Retrospective Cross-Sectional Study

Background and objective Few studies have specifically investigated the incidence of venous thromboembolism (VTE) following arthroscopic meniscal repair in middle-aged or older patients. This study aimed to evaluate the prevalence of symptomatic VTE (sVTE) and identify its risk factors after medial meniscus repair (MMR). Methods Data were retrieved for 135 consecutive patients (male/female, 23/112; mean age, 66.3 years) who underwent arthroscopic MMR at a single center between March and October 2024. Fisher's exact test was used to assess potential associations between categorical risk factors and sVTE. Results sVTE occurred in three patients (2.2%). Two required temporary percutaneous cardiopulmonary support, and one was treated with an inferior vena cava filter. A BMI ≥29.5 was identified as a significant risk factor, with an OR of 15.6 (95% CI: 1.33-182.6; p = 0.04). Conclusions Although arthroscopic meniscal surgery is generally considered safe, potential risk factors for thrombotic events should be carefully evaluated. Further research is warranted to determine the optimal thromboprophylaxis regimen following meniscus repair.