Case study: The influence of Achilles tendon rupture on knee joint stress during counter-movement jump – Combining musculoskeletal modeling and finite element analysis

BackgroundPresently, the current research concerning Achilles tendon rupture repair (ATR) is predominantly centered on ankle joint, with a paucity of evidence regarding its impact knee joint. ATR has potential to significantly impede athletic performance and increase tibiofemoral contact forces in athletes. The purpose this study was prognosticate distribution stress within joint during countermovement jump through use simulation method that amalgamated musculoskeletal model patient who underwent finite element joint.MethodsA male elite badminton player had suffered an acute his right leg one year prior selected as our subject. In order analyze biomechanical data, we employed both OpenSim compute various parameters such angles, moments, forces, stress.ResultsDuring jumping phase, lower extension angle (p < 0.001), dorsiflexion = 0.002), peak vertical ground reaction force 0.009) were observed injured side than uninjured side. During landing range motion (ROM) 0.009), higher 0.012). Additionally, it logical person will put load limb, but analysis indicated stresses medial meniscus cartilage greater side.ConclusionsAn can limit lead affected area jumps, especially phase. This increased may also transfer more soft tissues knee, thereby increasing risk injury. It worth noting only involves average flexion after athlete. Caution should be exercised when applying conclusions, future, participants recruited establish personalized models validate results.