探讨高频超声在跟腱断裂中的表现以及对断端的被动运动状态的诊断价值。

以佛山市第五人民医院2019年1月至2020年1月收治的50例经手术证实闭合性跟腱断裂患者为研究对象，均采用ALOKA F15彩色多普勒超声诊断仪进行检查，分析高频超声中跟腱断裂表现，并动态观察跟腱断端被动运动状态。

50例患者中，40例为完全断裂，10例为部分断裂，检测结果与MRI和手术诊断结果一致。跟腱手术后4周为修复初期，超声显示跟腱血流信号丰富，血管分布较多，收缩期血流速度快，阻力指数高于手术前，但跟腱损伤尚未恢复；术后6~8周拆除石膏，患者难以进行正常运动；术后8周，断端血流减少且有胶原纤维增生现象；术后12周进入修复快速期，患者跟腱血流信号基本恢复，血管分布状况良好，收缩期血流速度与跟腱损伤前接近，此时无明显血流信号。

采用高频超声对跟腱断裂患者进行诊断，可显示断裂状况和被动运动下病情状况，经济、快捷、检测准确率高。

To investigate the performance of high-frequency ultrasound in Achilles tendon rupture and the passive motion state of the broken end.

A total of 50 patients with closed Achilles tendon rupture admitted to the Fifth People′s Hospital of Foshan from January 2019 to January 2020 were selected as the research objects.All patients were examined by ALOKA F15 color Doppler ultrasound, the manifestations of Achilles tendon rupture in high-frequency ultrasound were analyzed, and the passive motion of Achilles tendon broken end was dynamically observed.

Of the 50 patients, 40 had complete rupture and 10 had partial rupture of the Achilles tendon, and the results were consistent with the MRI and surgical diagnosis.Four weeks after Achilles tendon surgery was the initial stage of repair.The blood flow signal of Achilles tendon was rich, the blood vessel distribution was more, the blood flow velocity in systolic period was faster, and the resistance index was higher than that before surgery, but the Achilles tendon injury had not been recovered yet.After 6-8 weeks of removal of the cast, the patient had difficulty in exercising.Eight weeks after surgery, the blood flow at the broken end was reduced and collagen fibrous hyperplasia was observed.Twelve weeks after surgery, the patient entered the rapid repair stage, and the blood flow signal of the patient′s Achilles tendon basically recovered, with good vascular distribution.The systolic blood flow velocity was close to that before the Achilles tendon injury, and there was no obvious blood flow signal at this time.

High-frequency ultrasound can bu used to diagnose patients with Achilles tendon rupture, which can show the rupture condition and the condition under passive motion.It is economical, fast and accurate.