超声测量腕横韧带厚度辅助诊断腕管综合征的可行性研究

Feasibility of ultrasonography in diagnosis of carpal tunnel syndrome by measuring the thickness of transverse carpal ligaments

[目的]探讨超声测量腕横韧带厚度辅助诊断腕管综合征的可行性。[方法]对40例临床及电生理检测确诊为腕管综合征并进行腕管切开减压的患者,术前应用B超测量钩骨钩水平腕横韧带的厚度,并与术中同水平直接测量结果和24例正常腕管B超结果进行比较。[结果]B超检查腕管综合征组钩骨钩水平腕横韧带的平均厚度分别为(0.42±0.08)cm,术中同水平直接测量结果为(0.4±0.1)cm,正常人分别为(0.29±0.07)cm,腕管综合征组钩骨钩水平腕横韧带的厚度B超结果和术中直接测量结果均大于对照组,两组差异有统计学意义(P<0.05),而CTS组钩骨钩水平腕横韧带的厚度B超结果和术中直接测量结果无统计学差异(P>0.01)。[结论]超声测量腕横韧带厚度可作为辅助诊断腕管综合征的一种新的有价值的方法。

[Objective]To evaluate the diagnostic value of ultrasonography in patients with carpaltunnel syndrome （CTS） by measuring the thickness of transverse carpal ligament.[Method]Forty patients who had clinically and electrophysiologically confirmed as CTS underwent surgery and ultrasonographic examination by the same operator for the thickness of transverse carpal ligaments at the level of the hook of the hamate bone in transverse plane preoperatively.Twenty-four asymptomatic normal wrists served as control.Data of the ultrasonography and surgey from patients and the control groups were compared to determine the diagnostic parameters.[Result]The ultrasonographic thickness of transverse carpal ligaments in CTS patients was （0.42±0.08）cm at hamate hook leve and the data from surgey was （0.40±0.10）.The data in control group was （0.29±0.07）cm.There was significant difference in the mean value of thickness of transverse carpal ligaments between the two groups at the same level.There was no significant difference between the data of CTS from surgey and ultrasonography.[Conclusion]Ultrasonography examination of the thickness of transverse carpal ligamentsis is a new and feasibile method in the diagnosis of carpal tunnel syndrome.