Momose Toshimitsu, Amadio Peter C, Zobitz Mark E, Zhao Chunfeng, An Kai-Nan
Orthopedic Biomechanics Laboratory, Department of Orthopedics, Mayo Clinic/Mayo Foundation, Rochester, MN 55905, USA.
Clin Anat. 2002 May;15(3):199-205. doi: 10.1002/ca.10009.
We measured the gliding resistance of canine and human tendons of intrasynovial origin and tendons of extrasynovial origin with and without paratenon, and investigated the structure of paratenon using scanning electron microscopy. In the canine study, seven intrasynovial flexor digitorum profundus (FDP) tendons, seven extrasynovial fibularis (peroneus) longus (FL) tendons with paratenon, and seven FL tendons without paratenon were used. In the human study, seven intrasynovial FDP tendons and seven extrasynovial palmaris longus (PL) tendons cut in half (one half with paratenon, the other half without paratenon) were used. The gliding resistance of each tendon was measured at 1, 5, 10, 20, 50, and100 flexion/extension cycles. The canine and human FDP tendons maintained a gliding resistance significantly lower than that of the other tendons at all observation points (P < 0.05). In the canine, the gliding resistance of the FL tendon with paratenon was significantly lower than that of the FL tendon without paratenon up to 50 flexion/extension cycles (P < 0.05), but the two were not significantly different at 100 cycles. In the human, the gliding resistance of PL tendons with paratenon was significantly lower than that of the PL tendons without paratenon at all measuring points (P < 0.05). Preservation of paratenon thus appears to decrease the gliding resistance of extrasynovial tendons after repetitive motion in vitro.
我们测量了有和没有腱旁组织的、来自滑膜内和滑膜外的犬类和人类肌腱的滑动阻力，并使用扫描电子显微镜研究了腱旁组织的结构。在犬类研究中，使用了7条滑膜内的指深屈肌腱（FDP）、7条带有腱旁组织的滑膜外腓骨长肌（FL）肌腱和7条没有腱旁组织的FL肌腱。在人类研究中，使用了7条滑膜内的FDP肌腱和7条滑膜外的掌长肌（PL）肌腱，将其切成两半（一半带有腱旁组织，另一半没有腱旁组织）。在1、5、10、20、50和100次屈伸循环时测量每条肌腱的滑动阻力。在所有观察点，犬类和人类的FDP肌腱的滑动阻力均显著低于其他肌腱（P<0.05）。在犬类中，带有腱旁组织的FL肌腱在50次屈伸循环内的滑动阻力显著低于没有腱旁组织的FL肌腱（P<0.05），但在100次循环时两者无显著差异。在人类中，带有腱旁组织的PL肌腱在所有测量点的滑动阻力均显著低于没有腱旁组织的PL肌腱（P<0.05）。因此，在体外重复运动后，保留腱旁组织似乎会降低滑膜外肌腱的滑动阻力。
