title: Body Mass Index as an Indicator of Associated Intra-articular Injuries in Patients With Anterior Cruciate Ligament Tears.
abstract: This study assessed the relationship between body mass index (BMI), anterior cruciate ligament (ACL) injury, and associated meniscal and cartilage injury. Age, ACL classification, and Tegner activity score were considered. A total of 1968 ACL reconstruction patients (2/1/1996 to 5/1/2012) were analyzed. All graft types, age groups, and activity levels were included. A BMI ≥30 correlated with a significant likelihood of medial meniscus tears (p = .022). Patients with a BMI ≥30 were 21.6% more likely to have a medial meniscus tear with an ACL injury. Grade III and IV chondral lesions correlated with a BMI ≥30 (p = .029). Patient's age predicted medial meniscus outcome (p = .013). Patients whose age was >25 had a 25.7% higher risk of medial meniscus tear. Chronic ACL patients were 52.6% more likely to have a meniscus injury. BMI, age, Tegner activity score, and ACL classification are good predictors of medial meniscus injury. Patients with a BMI ≥30 exhibit a greater risk of medial meniscus tear with ACL instability; however, BMI does not significantly contribute to increased chondral damage in ACL-deficient patients.
authors.forename: Gene R
authors.initials: GR
authors.lastname: Barrett
authors.forename: Kasey E
authors.initials: KE
authors.lastname: Thibodeaux
authors.forename: William H
authors.initials: WH
authors.lastname: Replogle
authors.forename: Austin
authors.initials: A
authors.lastname: Barrett
authors.forename: Taylor
authors.initials: T
authors.lastname: Parks
authors.forename: Donald
authors.initials: D
authors.lastname: Baker
mesh_terms: D000208:Acute Disease; D000328:Adult; D000367:Age Factors; D000070598:Anterior Cruciate Ligament Injuries; D059549:Anterior Cruciate Ligament Reconstruction; D001265:Athletic Injuries / Q000453:epidemiology* / Q000601:surgery; D015992:Body Mass Index; D002358:Cartilage, Articular; D002908:Chronic Disease; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000453:epidemiology* / Q000601:surgery; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D012189:Retrospective Studies; D012307:Risk Factors; D000070600:Tibial Meniscus Injuries; D055815:Young Adult