Edsfeldt S, Rempel D, Kursa K, Diao E, Lattanza L
Department of Surgery, University of California at San Francisco, San Francisco CA, USA.
Department of Surgery, University of California at San Francisco, San Francisco CA, USA
J Hand Surg Eur Vol. 2015 Sep;40(7):705-10. doi: 10.1177/1753193415591491. Epub 2015 Jun 26.
We measured in vivo forces in the flexor digitorum profundus and the flexor digitorum superficialis tendons during commonly used rehabilitation manoeuvres after flexor tendon repair by placing a buckle force transducer on the tendons of the index finger in the carpal canal during open carpal tunnel release of 12 patients. We compared peak forces for each manoeuvre with the reported strength of a flexor tendon repair. Median flexor digitorum profundus force (24 N) during isolated flexor digitorum profundus flexion and median flexor digitorum superficialis force (13 N) during isolated flexor digitorum superficialis flexion were significantly higher than during the other manoeuvres. Significantly higher median forces were observed in the flexor digitorum superficialis with the wrist at 30° flexion (6 N) compared with the neutral wrist position (5 N). Median flexor digitorum profundus forces were significantly higher during active finger flexion (6 N) compared with place and hold (3 N). Place and hold and active finger flexion with the wrist in the neutral position or tenodesis generated the lowest forces; isolated flexion of these tendons generated higher forces along the flexor tendons.
III (controlled trial without randomization).
在12例患者进行开放性腕管松解术时，通过在腕管内食指肌腱上放置扣式力传感器，我们测量了屈指深肌腱和屈指浅肌腱在屈肌腱修复后常用康复动作过程中的体内力。我们将每个动作的峰值力与报道的屈肌腱修复强度进行了比较。在单独的屈指深肌屈曲过程中，屈指深肌的中位力（24 N）和在单独的屈指浅肌屈曲过程中，屈指浅肌的中位力（13 N）显著高于其他动作。与腕关节中立位（5 N）相比，腕关节屈曲30°时屈指浅肌的中位力显著更高（6 N）。与放置并保持（3 N）相比，主动手指屈曲时屈指深肌的中位力显著更高（6 N）。腕关节处于中立位或利用动力肌的放置并保持和主动手指屈曲产生的力最低；这些肌腱的单独屈曲沿屈肌腱产生更高的力。
III（非随机对照试验）。
