Shekarchi Babak, Mokhdanzadeh Dashti Mohammadreza, Shahrezaei Mostafa, Karimi Ebrahim
Radiology Department, Imam Reza Hospital, AJA University of Medical Sciences, Faculty of Medicine, Tehran, Iran.
Emergency Department, Be'sat Hospital, AJA University of Medical Sciences, Faculty of Medicine, Tehran, Iran.
Emerg (Tehran). 2018;6(1):e15. Epub 2018 Feb 19.
Timely diagnosis and treatment of traumatic injury to ulnar collateral ligament (UCL) of thumb is of special importance for preserving the full function of the hand. Therefore, the present study has been designed with the aim of evaluating the accuracy of ultrasonography in detection of these injuries.
The present diagnostic accuracy study was performed on trauma patients over 15 years old who had clinical evidence of injury to UCL of thumb and were admitted to the emergency department. All patients were evaluated regarding injury to the mentioned ligament via ultrasonography and MRI and finally, the accuracy of ultrasonography in this regard was measured considering MRI as the reference test.
20 individuals with the mean age of 38.60 ± 13.45 (16 - 64) years were evaluated (60% male). Based on ultrasonography and MRI findings 7 (35%) individuals and 7 (35%), respectively had complete ligament rupture (kappa: 0.560 (95% CI: 0.179 - 0.942)). Sensitivity, specificity, positive and negative predictive value, and positive and negative likelihood ratio of ultrasonography in detecting injuries of the mentioned ligament were 71.42 (30.25 - 94.88), 84.61 (53.66 - 97.28), 71.42 (30.25 - 94.88), 84.61 (53.66 - 97.28), 2.5 (0.71 - 8.82), and 0.18 (0.04 - 0.67), respectively.
Based on the findings of the present study, performance of ultrasonography by a radiologist in the emergency department has 80% accuracy in detecting traumatic injuries of UCL of the thumb.
拇指尺侧副韧带（UCL）创伤性损伤的及时诊断和治疗对于保留手部的全部功能尤为重要。因此，本研究旨在评估超声检查在检测这些损伤方面的准确性。
本诊断准确性研究针对15岁以上有拇指UCL损伤临床证据且入住急诊科的创伤患者进行。所有患者均通过超声检查和磁共振成像（MRI）对上述韧带损伤进行评估，最后以MRI作为参考检查来测量超声检查在这方面的准确性。
对20名平均年龄为38.60±13.45（16 - 64）岁的个体进行了评估（60%为男性）。根据超声检查和MRI结果，分别有7名（35%）个体出现韧带完全断裂（kappa值：0.560（95%置信区间：0.179 - 0.942））。超声检查在检测上述韧带损伤方面的敏感性、特异性、阳性和阴性预测值以及阳性和阴性似然比分别为71.42（30.25 - 94.88）、84.61（53.66 - 97.28）、71.42（30.25 - 94.88）、84.61（53.66 - 97.28）、2.5（0.71 - 8.82）和0.18（0.04 - 0.67）。
基于本研究结果，放射科医生在急诊科进行的超声检查在检测拇指UCL创伤性损伤方面具有80%的准确性。
