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

2017; Wiley; Volume: 31; Issue: S1 Linguagem: Inglês

10.1096/fasebj.31.1_supplement.896.20

1530-6860

Christopher T. Collins, Lauren Figge, Rustin Reeves, Rehana Sultana Lovely,

Peripheral Nerve Disorders

Study Objectives The aim of this study is to further investigate the presence of the tensor vastus intermedius (TVI) in a larger sample size of 80 thighs and also attempt to bring novel imaging techniques to the discussion. Background Until this year, the quadriceps muscle group has been described as containing four muscles, with few studies describing its deviation from this definition. Most recently, a study reported finding this additional muscle belly in all 26 cadaver dissections performed, which was then named TVI for its similarities to the tensor fascia lata (TFL) and its anatomical relationship to the vastus intermedius (VI) (Grob et al 2016). Methods In the preliminary dissections performed on 49 donor thighs we focused specifically on TVI presence, tendinous properties and nerve innervation. This current study includes 80 donor thighs and will include the previously stated focuses as well as the vascular supply of the TVI. Biostatistical analysis will also be used to find any correlation of TVI bilaterally or with known factors of the donor such as gender. Results Along with the TVI muscle belly presence, there is variation among its tendinous contribution to the quadriceps tendon, which is classified based on the muscle it fuses with, vastus lateralus (VL), VI or both, or whether it is completely independent. Conclusion Our preliminary investigation showed TVI presence in 38% of cadaver thighs, which is also what we expect to find in the additional 80 thighs analyzed of the present study.