Abstract

Anatomical variations of the hamstring muscles are not common. During anatomy dissection of the lower extremities of an adult male cadaver, an aberrant muscular bundle was observed. This aberrant muscle bundle was originated from long head of biceps femoris and merged with semitendinosus. Because the muscular bundle runs across the sciatic nerve, it may compress the sciatic nerve and cause symptoms of sciatic nerve compression. This type of muscular bundle may potentially predispose hamstring strain and hamstring injury. Such a muscular bundle also may cause confusion during surgery or evaluation of CT and MRI scans. Therefore, awareness of this type of variations is essential to avoid complications during diagnostic radiology and surgeries.

Keywords

Biceps femoris, Hamstring muscles, Muscle bundle, Muscular slip, Semitendinosus, Ischial tuberosity, Sciatic nerve, Anatomical, Biarticular, Kinetic energy, Knee flexors, Radiologists, Physiotherapists, Musculoskeletal anomalies, Biceps brachii