Lower limb injuries represent the majority of sports-related injuries, with knee injuries being among the most common. In particular, anterior cruciate ligament (ACL) injuries are considered highly devastating and career-threatening for both professional and amateur athletes. Current surgical and rehabilitation treatments often fail to provide fully satisfactory short- and long-term outcomes. A very high risk of re-injury exists, especially in younger patients, with up to 35% experiencing a second ACL injury, alongside a significant long-term risk of early knee osteoarthritis. Most ACL injuries are non-contact or indirect contact injuries, implicating biomechanical factors and neuromuscular control as key determinants of injury mechanisms. Recent literature shows that patients suffering a non-contact ACL injury have a higher risk of re-injury compared to those with contact injuries, suggesting a significant cognitive component in injury processing, surgery, rehabilitation, and return to sport. Recent rehabilitation studies have introduced targeted neuromotor training designed to "rebuild" biomechanical and neuromuscular patterns to avoid mechanisms leading to re-injury. Movement quality tests are used post-training to confirm the reduction of risky biomechanical patterns, often resulting in a score indicating movement quality. Given the brain's involvement in such injuries, pioneering studies have used functional magnetic resonance imaging (fMRI) to investigate changes in cortical brain areas following ACL injury and reconstruction. Evidence shows adaptations in both central and peripheral nervous systems, with altered sensorimotor cortex activation in patients during simple motor tasks, differing from healthy subjects. Prefrontal cortex alterations correlate with severe quadriceps muscle activation asymmetries, linking these brain patterns to post-injury return-to-sport outcomes. However, no studies have yet evaluated the interaction between cortical activation (neural compensations) measured by fMRI and outcomes from targeted neuromotor training during ACL rehabilitation. Understanding brain activation implications is crucial for developing large-scale rehabilitation protocols to reduce the risk of a second, potentially more devastating, knee injury. This study aims to reveal whether a neuromotor training protocol can positively influence cognitive brain areas related to human movement, particularly by reducing risky injury patterns. It will be the first to test whether dedicated neuromuscular training effectively reduces neural compensations and cortical activation related to non-automated movement, favoring automation areas important for a safe return to sport. Patients will directly benefit from participating in the innovative neuromotor training program, with functional MRI scans conducted before training begins (post-surgery) and after training completion. Indirectly, the study will assess whether neuromotor training can adapt patient neuromotor patterns to reduce re-injury risk, ultimately benefiting future patients undergoing ACL reconstruction.
Age range
18 Years – 30 Years
Sex
ALL
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Variation in the volumetric activation data of the somatosensory cortex
Timeframe: Between 6 and 9 months per patient based on internal analyses and ongoing scientific studies