Relationship Between Anatomic Characteristic Of The Knee And Isolated Meniscal Injury

Background and objectiveThe anatomic features of the knee have been proven to affect knee biomechanics and be closely related to anterior cruciate ligament injury.However,few studies have focused on isolated meniscus injury and used multivariate analysis to investigate the relationship between multiple anatomic features of knee(tibia and femur)and isolated meniscus injury.In addition,several studies have shown that men and women have certain differences in the anatomical characteristics of the knee joint.Therefore,this study intends to study whether there are gender differences in multiple anatomical features of the knee joint,and then study the relationship between multiple anatomical features of the knee joint and isolated meniscal injury,and use multivariate analysis to identify the risk factors of isolated meniscal injury for females and males.MethodsClinical data of one hundred and seventy-nine patients were reviewed.Forty-seven patients with isolated medial meniscus injury,62 patients with isolated lateral meniscus injury and 70 control subjects were included and their data were reviewed.The basic demographic data of all the patients were collected.At the same time,the magnetic resonance images of the knee joints of all subjects were reviewed.Medial tibial posterior slope(MTS),lateral posterior tibial slope(LTS),medial tibial plateau depth(MTD),coronal tibial slope(CTS),femoral notch width(NW),femoral condylar width(FCW),intercondylar notch depth(ND),femoral notch width Index(NWI),intercondylar notch shape index(NSI),femoral notch width Index(NWI),intercondylar notch shape index(NSI),cruciate ligament tensity(CLT)were measured from magnetic resonance images.Differences of multiple anatomic features between groups were compared and risk factors associated with isolated meniscus injury were identified by multivariate forward stepwise logistic regression for males and females separately.ResultsFor females,a steeper MTS and a lager NWI were risk factors associated with isolated medial meniscus injury.A steeper LTS and a lower ND were risk factors associated with isolated lateral meniscus injury.A higher CTS,a lager NSI and a looser cruciate ligament tensity(CLT)were risk factors associated with both medial and lateral meniscus injury.For males,a steeper MTS and a lower MTD were risk factors associated with isolated medial meniscus injury.A steeper LTS and a larger NW were risk factors associated with isolated lateral meniscus injury.A higher CTS,a lager NWI and a looser cruciate ligament tensity(CLT)were risk factors associated with both medial and lateral meniscus injury.ConclusionsThe anatomical characteristics of the knee joint affect the risk of isolated meniscal injury.There are certain differences in the anatomical characteristics of the knee joint between males and females,and future research involving the anatomical characteristics of the knee joint should be treated differently.The risk factors for males and females suffering from isolated meniscal injury are different.The research significance of this study can provide a certain reference for developing the identification standard of isolated meniscal injury,which is beneficial to identify people at risk and applying intervention measures as soon as possible to prevent the occurrence of isolated meniscal injury.