Anatomical Investigation of the Tensor Vastus Intermedius in the Quadriceps Muscle Group

Abstract

Past anatomical research has shown examples of fusion of the quadriceps muscle group. Researchers have seen examples of this muscle group exhibiting extra muscle bellies or multiple small flaps. A recent study has confirmed a consistent variation to this muscle group, that could qualify as a new muscle, the tensor vastus intermedius (TVI). This study investigates the presence and type of TVI muscle found in 70 cadavers, with additional focus on the arterial supply to the lateral aspect of the quadriceps muscle group and the variations associated with these vessels. To further understand the function and clinical implications of this new muscle, a large cumulative sample size is necessary to investigate its tendencies and variations. These data lend strong support to the existence of this new muscle, the TVI.