Level of the semitedinosus and gracilis muscle stumps following tendon harvesting: a cadaveric study.
BACKGROUND
To establish the occurrence of regeneration of the semitendinosus and gracilis tendons following their harvesting for anterior cruciate ligament reconstruction, we performed a simulation procedure using 12 lower extremities from six cadavers and studied the length of the muscle stumps that remained distally beyond the knee joint line and recorded their proximity to the popliteal fascia.


RESULTS
Six of 12 semitendinosus and gracilis muscles remained beyond the joint line. Nine semitendinosus and eight gracilis muscle stumps were close to the popliteal fascia, while the other stumps were not. The semitendinosus and gracilis muscles that remained beyond the knee joint line and close to the popliteal fascia, even after tendon harvesting, are supposed to increase the likelihood of regeneration of the functional myotendinous junction, compared with muscles not extending to the joint line.


CONCLUSIONS
We were convinced by these results of regeneration of the semitendinosus and gracilis tendons following tendon harvesting, which had been reported clinically.
Irie
Kazunori
K
Department of Sports Medicine and Health Care, Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan. irik@ior.twmu.ac.jp
Tomatsu
Taisuke
T
D000368:Aged; D006801:Humans; D018482:Muscle, Skeletal / Q000033:anatomy & histology* / Q000502:physiology; D011184:Postoperative Period; D012038:Regeneration; D013710:Tendons / Q000637:transplantation*; D020858:Tissue and Organ Harvesting