Effects of different extents of pulley release on tendon excursion efficiency and tendon moment arms

Szu Ching Lu, Tai Hua Yang, Li Chieh Kuo, I. Ming Jou, Yung Nien Sun, Fong Chin Su

研究成果: Article

4 引文 斯高帕斯(Scopus)

摘要

To compare the excursion efficiency and moment arms of flexor digitorum superficialis (FDS) and profundus (FDP) among different conditions of pulley integrity related to trigger finger treatment, cadaveric fingers were first tested with an intact pulley system, and then the first (A1) and second (A2) annular pulleys were released gradually from the proximal to distal part. Linear position sensors and a motion capture system were used to measure the tendon excursion and joint rotation simultaneously. The tendon excursion efficiency was defined as the range of motion of the involved joints per unit of tendon excursion, and the tendon moment arm was determined by the slope of the linear fitting result of tendon excursion versus metacarpophalangeal (MCP) joint rotation. No significant differences were found between the release of the A1 pulley and the release extending to half the proximal part of the A2 pulley in the FDP excursion efficiency and the moment arms of FDS and FDP with respect to the MCP joint. These results imply that the release could extend to half the proximal A2 pulley, if necessary, without significantly decreasing the FDP excursion efficiency and increasing the moment arms of FDS and FDP with respect to the MCP joint.

原文English
頁(從 - 到)224-228
頁數5
期刊Journal of Orthopaedic Research
33
發行號2
DOIs
出版狀態Published - 2015 二月 1

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

指紋 深入研究「Effects of different extents of pulley release on tendon excursion efficiency and tendon moment arms」主題。共同形成了獨特的指紋。

  • 引用此