Hitchcock T F, Light T R, Bunch W H, Knight G W, Sartori M J, Patwardhan A G, Hollyfield R L
J Hand Surg Am. 1987 Jul;12(4):590-5. doi: 10.1016/s0363-5023(87)80213-7.
Profundus tendon lacerations were repaired in the central toes of 216 chickens, and the digits were either immobilized in a cast or allowed immediate constrained motion in a tethering splint. The effect of digital motion on the early phases of tendon healing was investigated by comparing the rupture strengths of the two groups during the first 40 days after repair. The repairs in immobilized digits showed marked decreases in strength during the first 20 days, while the tendons in mobilized digits showed immediate and progressive gains in strength through the time intervals studied. By 5 days, the difference in strength between the two groups was significant (p less than 0.05), and the magnitude of this difference increased with time. The model developed in this study demonstrates that an initial loss of flexor tendon repair strength is not inevitable. Immediate constrained digital mobilization allows progressive tendon healing without an intervening phase of tendon softening.
在216只鸡的中趾修复了跟腱撕裂伤，这些趾要么用石膏固定，要么在束缚夹板中立即进行受限运动。通过比较修复后前40天两组的断裂强度，研究了趾运动对肌腱愈合早期阶段的影响。固定趾的修复在最初20天强度明显下降，而活动趾的肌腱在研究的时间间隔内强度立即且逐渐增加。到第5天，两组之间的强度差异显著（p小于0.05），且这种差异的幅度随时间增加。本研究建立的模型表明，屈肌腱修复强度的最初丧失并非不可避免。立即进行受限的趾活动可使肌腱逐渐愈合，而无需经历肌腱软化的中间阶段。
