Semimembranosus Muscle

The Semimembranosus Muscle is one of the three muscles comprising the hamstring group, located at the back of the thigh. In orthopaedics, this muscle is essential for hip and knee joint function. Originating from the ischial tuberosity (part of the pelvis), the semimembranosus runs down the thigh and attaches to the medial condyle of the tibia. Orthopedic assessments often involve the evaluation of the semimembranosus in cases of hamstring injuries, strain, or knee-related conditions. This muscle plays a key role in knee flexion and internal rotation, contributing to activities such as running and jumping. Hamstring injuries, including strains or tears of the semimembranosus, are common in sports and activities requiring sudden acceleration or deceleration. Orthopedic interventions may include physical therapy, rest, and strengthening exercises to promote optimal healing and prevent re-injury. Understanding the anatomy and function of the semimembranosus muscle is crucial in orthopaedics for diagnosing and managing conditions related to the hamstring complex, optimizing lower limb biomechanics, and facilitating effective rehabilitation after injuries.