Value of High-Frequency Ultrasound in the Diagnosis of Pronator Teres Syndrome.
10.3881/j.issn.1000-503X.15472
- Author:
Min HU
1
;
Shi-Yu CHEN
1
;
Xiao-Long YANG
2
;
Tian-Fang LIN
1
;
Jie-Feng WANG
1
;
Zheng-Hua ZANG
1
Author Information
1. Department of Ultrasonography.
2. Department of Pain,Yueqing Affiliated Hospital of Wenzhou Medical University,Wenzhou,Zhejiang 325600,China.
- Publication Type:Journal Article
- Keywords:
high-frequency ultrasound;
median nerve compression;
pronator teres syndrome
- MeSH:
Humans;
Forearm/innervation*;
Muscle, Skeletal/innervation*;
Median Nerve/diagnostic imaging*;
Ultrasonography/methods*;
Sensitivity and Specificity
- From:
Acta Academiae Medicinae Sinicae
2023;45(3):436-439
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical value of high-frequency ultrasound in the diagnosis of pronator teres syndrome (PTS). Methods The high-frequency ultrasound was employed to examine and measure the median nerve of the pronator teres muscle in 30 patients with PTS and 30 healthy volunteers (control group).The long-axis diameter (LA),short-axis diameter (SA) and cross-sectional area (CSA) of the median nerve were measured.The receiver operating characteristic curve of the median nerve ultrasonic measurement results was established,and the area under the curve (AUC) was calculated.The diagnostic efficiency of each index for PTS was compared with the surgical results as a reference. Results The PTS group showed larger LA[(5.02±0.50) mm vs.(3.89±0.41) mm;t=4.38,P=0.013],SA[(2.55±0.46) mm vs.(1.70±0.41) mm;t=5.19,P=0.009],and CSA[(11.13±3.72) mm2 vs.(6.88±2.68) mm2;t=8.42,P=0.008] of the median nerve than the control group.The AUC of CSA,SA,and LA was 94.3% (95%CI=0.912-0.972,Z=3.586,P=0.001),77.7% (95%CI=0.734-0.815,Z=2.855, P=0.006),and 78.8% (95%CI=0.752-0.821,Z=3.091,P=0.004),respectively.With 8.63 mm2 as the cutoff value,the sensitivity and specificity of CSA in diagnosing PTS were 93.3% and 90.0%,respectively. Conclusion High-frequency ultrasound is a practical method for diagnosing PTS,and the CSA of median nerve has a high diagnostic value.
