Hericourt

This research focuses on patients experiencing stiff knee gait SKG, a condition caused by spastic muscle complications in the leg that can result from stroke, brain injury, spinal cord damage, or multiple sclerosis. SKG affects the mobility of the knee joint, leading to stiffness that hampers walking ability. The study aims to observe and compare balance and risk of falls before and after treatment with botulinum toxin injections in the rectus femoris muscle, which is a current standard treatment to reduce muscle spasticity in these patients. Participants will receive botulinum toxin injections targeted to the rectus femoris muscle. The study is observational and will evaluate the effects of these injections on balance and walking ability without altering standard care. Functional clinical tests such as the Time Up and Go test, Berg Balance Scale, Stair Climb and Descent Time test, and a questionnaire about the number of falls will be used to assess participants before and four weeks after the injections. Throughout the study, participants will undergo these clinical tests to measure static and dynamic balance and walking function. Researchers will specifically focus on the Time Up and Go test as the primary outcome four weeks after treatment. Secondary outcomes include balance scale scores, stair climbing times, and fall frequency. The study will also monitor safety and compliance. The total study duration for each participant is at least four weeks from the inclusion visit to the post-injection evaluation.