Takai S, Woo S L, Horibe S, Tung D K, Gelberman R H
Department of Orthopaedic Surgery, University of Pittsburgh, Pennsylvania 15261.
J Orthop Res. 1991 Sep;9(5):705-13. doi: 10.1002/jor.1100090510.
This study was designed to determine the effects of frequency and duration of controlled passive motion on the healing flexor tendon following primary repair. Adult mongrel dogs were divided into two groups based on frequency of controlled passive motion. In one group, motion was applied manually at a frequency of 12 cycles/min for 5 min/day; in the other group, a continuous passive motion machine was used to apply motion at a lower frequency of 1 cycle/min for 60 min/day, making the number of cycles each day for both groups identical. Gliding function and tensile properties of repaired tendons were evaluated biomechanically at 3 and 6 weeks postoperatively. Results showed that gliding function in both groups was similar, but tensile properties, as represented by linear slope, ultimate load, and energy absorption, were significantly improved in the higher frequency group. It was concluded that frequency of controlled passive motion rehabilitation is a significant factor in accelerating the healing response following tendon repair, and higher frequency-controlled passive motion has a beneficial effect.
本研究旨在确定控制性被动运动的频率和持续时间对一期修复后屈指肌腱愈合的影响。成年杂种犬根据控制性被动运动的频率分为两组。一组以12次/分钟的频率手动施加运动，每天5分钟；另一组使用持续被动运动机器以较低的1次/分钟的频率施加运动，每天60分钟，使两组每天的运动次数相同。在术后3周和6周对修复肌腱的滑动功能和拉伸性能进行生物力学评估。结果表明，两组的滑动功能相似，但高频组以线性斜率、极限负荷和能量吸收表示的拉伸性能有显著改善。得出的结论是，控制性被动运动康复的频率是加速肌腱修复后愈合反应的一个重要因素，高频控制性被动运动具有有益作用。
