Anatomic risk factor for meniscal lesion in association with ACL rupture

Abstract

Background To assess anatomic risk factors for meniscal lesions in association with acute ACL rupture. The primary hypothesis was that tibiofemoral anatomic measures will be different in those with and without concomitant meniscus tears. Methods A retrospective review of patients who underwent acute ACL reconstruction in the department was performed. All patients underwent a postoperative CT scan. The concavity and/or convexity on the femur and the tibia were measured by two blinded observers on the sagittal plane with different ratios, and these measures were compared in patients with and without meniscus tears in each compartment. Intra- and inter-rater reliabilities were assessed. Results Four hundred twelve patients (268 males and 144 females) were included from October 2012 to February 2015. One hundred sixty-seven patients had a medial meniscal tear (119 males/48 females), and 100 had a lateral meniscal tear (80 males/20 females). The mean time from injury to surgery was 3 months. The average ICC for all measurements was 0.87 (range 0.82–0.98) indicating good reliability. The medial femoral condyle was noted to be significantly longer than the medial tibial plateau in the sagittal plane in patients with a medial meniscal tear ( p = 0.04), and the lateral femoral condyle was noted to be significantly longer than the lateral tibial plateau in the sagittal plane in patients with a lateral meniscal tear ( p < 0.001). In addition, a less convex lateral tibial plateau was statistically correlated with a higher risk of lateral meniscal tear ( p = 0.001). Conclusions A greater anteroposterior length of the medial/lateral femoral condyle relative to the medial/lateral tibial plateau is associated with an increased risk of meniscal lesions in association with acute ACL rupture. The lateral compartment in the male population appears to be the most at risk. Trial registration Retrospectively registered on May 12, 2016 (CPP sud-est II CAL n°2016-037)

Morphometric characteristics of the knee are associated with the injury of the meniscus

“…Several parameters are related to the width of the femoral notch [ 11 , 12 ], such as the notch width (NW), bicondylar notch width (BCW), the notch width index (NWI), condyle width of the femur, tibial spine height, and intercondylar angle. However, limited prior studies evaluated the anatomical risk factors for the injury of the meniscus [ 21 – 24 ].…”

The Clinical Application of Machine Learning Models for Risk Analysis of Ramp Lesions in Anterior Cruciate Ligament Injuries

“…An increased LFC ratio has been reported to be associated with ACL injuries and ACL reconstruction failure. 16,19,45,46 This anatomic feature could alter the gait and loading mechanics of the tibiofemoral joint and increase the length and anisometry in the anterolateral ligament complex, which might increase anterolateral rotatory laxity. 25,45,46 As suggested by Pfeiffer et al, 45,46 an increased LFC ratio, which may be more anisometric and oval shaped, might lead to increased ligamentous laxity in the lateral or anterolateral ligament complex.…”

Lateral Meniscus Tears in Acl Injured Knee

“…In a CT scan analysis, Gaillard et al found that a greater anteroposterior length of the lateral femoral condyle with respect to the lateral tibial condyle and lesser convexity of the lateral tibial plateau were significantly associated with LMTs. As such, the lateral compartment of males were at a greater risk 24 . Several anatomic factors have been reported to have an association with LMPRTs.…”