Gelberman R H, Woo S L, Lothringer K, Akeson W H, Amiel D
J Hand Surg Am. 1982 Mar;7(2):170-5. doi: 10.1016/s0363-5023(82)80083-x.
The response of healing canine flexor tendons to motion was investigated using protected passive mobilization techniques. Early motion, delayed motion, and immobilization groups were compared over a 12-week period for their strength and excursion characteristics. Tendons which were mobilized early showed progressively greater ultimate load and linear slope values at each time interval tested. The ultimate load of the immediately mobilized tendons, those tested at 3 weeks, was twice as great, and the linear slope values were almost three times greater than the immobilized repairs at 3 weeks. Similar differences were noted at each time interval through 12 weeks. The differences in angular rotation of the distal interphalangeal joint following the application of a small load were also significant. At 12 weeks, the angular rotation of the tendons of the immobilization group averaged only 19% +/- 2% of their intact contralateral controls. The delayed mobilization tendons produced values of 67% +/- 8%, and the immediate mobilization tendons produced 95% +/- 10% of the control joint motion. These findings indicate that early protected passive mobilization augments the physiologic processes that determine the strength and excursion of repaired flexor tendons.
采用保护性被动活动技术研究了愈合中的犬屈肌腱对活动的反应。在12周的时间内，对早期活动组、延迟活动组和固定组的肌腱强度和活动度特征进行了比较。早期活动的肌腱在每个测试时间间隔显示出逐渐增加的极限负荷和线性斜率值。立即活动的肌腱（在3周时测试）的极限负荷是固定修复肌腱在3周时的两倍，线性斜率值几乎是其三倍。在12周内的每个时间间隔都观察到了类似的差异。施加小负荷后，远侧指间关节的角旋转差异也很显著。在12周时，固定组肌腱的角旋转平均仅为完整对侧对照的19%±2%。延迟活动组肌腱产生的角旋转值为67%±8%，立即活动组肌腱产生的角旋转值为对照关节活动度的95%±10%。这些发现表明，早期保护性被动活动增强了决定修复后屈肌腱强度和活动度的生理过程。
