Józsa L, Kannus P, Järvinen T A, Balint J, Järvinen M
Department of Morphology, National Institute of Traumatology, Budapest, Hungary.
Eur Surg Res. 1998;30(2):125-9. doi: 10.1159/000008567.
The effect of Achilles tenotomy on resting blood flow of rat gastrocnemius muscle and Achilles tendon was studied by radioactive microspheres. Tenotomy produced an immediate, marked decrease in both intramuscular and intratendinous blood flow and it remained significantly lowered at both sites till the end of the observation period, i.e., day 18 after tenotomy. The decrease in the resting blood flow was more rapid and pronounced in the Achilles tendon than in the gastrocnemius muscle. Although the blood flow of the Achilles tendon started to recover after the 4th postoperative day, it was still 33% (statistically not significant) lower than that in the controls 18 days after tenotomy. In the gastrocnemius muscle, the 18-day deficit was 38% (p < 0.001), respectively. The results indicate that after division of a rat Achilles tendon the resting blood flow to the gastrocnemius muscle and Achilles tendon is not adequately restored, remaining at a significantly lowered level even 18 days after tenotomy.
采用放射性微球技术研究了跟腱切断术对大鼠腓肠肌和跟腱静息血流量的影响。跟腱切断术后，肌内和腱内血流量立即显著下降，且在两个部位均持续显著降低直至观察期末，即跟腱切断术后第18天。跟腱静息血流量的下降比腓肠肌更快、更明显。虽然跟腱血流量在术后第4天开始恢复，但在跟腱切断术后18天仍比对照组低33%（无统计学意义）。在腓肠肌中，18天的血流量不足分别为38%（p<0.001）。结果表明，大鼠跟腱切断后，腓肠肌和跟腱的静息血流量未能充分恢复，即使在跟腱切断术后18天仍显著低于正常水平。
