Value of different electrophysiological methods in the diagnosis of cubital tunnel syndrome
Objective To analyze the application value of different electrophysiological methods in the diagnosis of cubital tunnel syndrome(CuTS).Methods A total of 45 patients(90 upper limbs)clinically diagnosed with CuTS in Nanjing University of Chinese Medicine Affiliated Lianyungang Hospital from October 2019 to October 2022 were collected as the observation group,including 31 males and 14 females,aged 26 to 81(51.3±13.1)years.The 90 upper limbs were divided into a symptomatic limb group(50 limbs)and an asymptomatic limb group(40 limbs)according to whether there were the clinical symptoms of CuTS or not.In addition,30 healthy volunteers(60 upper limbs)were selected as the control group,including 20 males and 10 females,aged 28 to 79(50.3±11.6)years.Nerve conduction velocity(NCV),needle electromyography(EMG)and short-segment micro-shift conduction time(SSCT)were measured,and the relevant parameters were compared between the two groups.Independent sample t test and x2 test were used.Results Compared with those in the control group,the motor nerve conduction velocity(MNCV)of the ulnar nerve in the observation group decreased in the wrist-lower elbow segment[(50.79±5.98)m/s vs.(59.15±5.15)m/s]and the lower-upper elbow segment[(48.07±7.14)m/s vs.(55.77±5.35)m/s],and the complex muscle action potential(CMAP)amplitude decreased in the wrist segment[(9.16± 4.18)mV vs.(13.91±4.25)mV],5 cm of lower elbow segment[(7.63±3.59)mV vs.(13.46±3.92)mV],and 5 cm of upper elbow segment[(8.27±3.73)mV vs.(13.02±3.70)mV],with statistically significant differences(all P＜0.05).In the asymptomatic limb group,the abnormal rate of NCV was 12.5％(5/40),there was a statistically significant difference compared with that of SSCT detection[45.0％(18/40)](x2=10.313,P=0.001).Most of the compression areas detected by SSCT were located from 3 cm above the elbow to 2 cm below the elbow(total 5 cm),accounting for 9 6.9％of the marked areas.The compression rate of 1 cm above the elbow was the highest.Conclusions Different electrophysiological detection methods play an important role in early diagnosis,qualitative diagnosis,and treatment.SSCT is an important detection method for early diagnosis of CuTS and identification of compression sites.
万方数据
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