摘要
目的 探讨鸡的趾深屈肌腱断伤后用改良Kessler法和Tsuge法修复后早期缝合口最大抗拉力和功耗变化的特点。方法 选用三黄鸡42只,分成2组:改良Kessler法缝合组和Tsuge法缝合组,每组各21只实验鸡。将鸡的右侧第2、4趾趾深屈肌腱切断后用上述方法缝合。分别于术后即刻、1、4、7、10、14、21 d取材(7个时间组)。检测肌腱的最大抗拉力和达到最大力点的功耗。结果 最大抗拉力:改良Kessler法组在术后第10天降到最低点,术后14 d恢复到术后即刻的水平。Tsuge法组在术后4 d开始降低,术后21d还未恢复到即刻水平。达到最大力点的功耗:Tsuge法组在术后即刻和1d、7d比改良Kessler法组高;但在术后4d(Tsuge法组)和7d(改良Kessler法组)开始,就比术后即刻显著下降并持续到术后21d。结论 肌腱缝合后早期两种缝合方法的生物力学变化并不相同,对修复后的肌腱施加拉力直至拉断时所需的能量随术后时间的增加呈进行性下降。
Objective To investigate biomechanical characteristics of the digitorum profundus flexor tendon
repaired by the modified Kessler or Tsuge technique at the early period of postoperation at cocks.Methods Forty-two
Sanhuang cocks were divided into 2 groups: modified Kessler or Tsuge technique, with 21 in each. The right 2nd and
4th digitorum profundus flexor tendons were severed and repaired by the modified Kessler or Tsuge technique. The
repaired tendons were harvested at 7 time points-immediately after repair, 1, 4, 7, 10, 14, 21 days after operation.
Biomechanical meters including ultimate force, ultimate work were documented in biomechanical test. Results The
ultimate force decreased significantly at 10th day and returned to normal at 14th day in the modified Kessler method
group, but it decreased at 4th day and did not return to normal even at 21st day in the Tsuge method group. The tensile
strength of failure in the Tsuge method was significantly higher than that in modified Kessler method immediately after
repair 1, 7 days after operation. Compared with that immediately after the repair, it decreased obviously at
postoperative 4 days (Tsuge group )and 7 days day (Kessler group), and it continued to decrease at 21 days after
operation. Conclusion There is no similarity in biomechanical characteristics in two suture methods at the early stage
after tendon repair. The energy needed to pull repaired tendons until rupture decreases increasingly after operation.
出处
《中华手外科杂志》
CSCD
2004年第2期117-119,共3页
Chinese Journal of Hand Surgery
