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- Title
Optimal Ultrasonographic Measurements for Diagnosing Carpal Tunnel Syndrome in Patients With Diabetic Sensorimotor Polyneuropathy: A Case-Control Study.
- Authors
Ji Woong Park; Seokmin Lee; Rhee Wook Jang; Sungche Lee; Sanghoon Lee; Hyunchul Cho; Yoon-Hee Choi; Jinmyoung Kwak
- Abstract
Objective To investigate the optimal sonographic method for diagnosing carpal tunnel syndrome (CTS) in patients with diabetic sensorimotor polyneuropathy (DSP). Methods A total of 190 participants were divided into four groups based on DSP history and electrodiagnostic results of CTS. The absolute parameters were measured at baseline and the relative values were calculated: maximal cross-sectional area (CSA) of the median nerve throughout the carpal tunnel (Mmax), median nerve CSA at the forearm level (Mf), ulnar nerve CSA at the pisiform level (Upi), difference between Mmax and Mf (∆MM), and difference between Mmax and Upi (∆MU). Then, the optimal ultrasonographic parameters for diagnosing CTS, according to the presence of DSP, using absolute and relative cutoff values were analyzed. Results Median and ulnar nerve CSAs were significantly larger in the DSP group than in the control group. In the DSP participants, the mean Mmax, ∆MM, and ∆MU values were significantly larger in patients with both DSP and CTS than in patients with DSP only. The Mmax thresholds of 9.5 mm² in the control group and 11.5 mm² in the DSP group showed the greatest sensitivity and specificity for diagnosing CTS. The ∆MM thresholds of 2.5 mm² and ∆MU thresholds of 4.5 mm² had the greatest sensitivity and specificity in both the DSP and control groups. Conclusion Measurement of Mmax, ∆MM and ∆MU is an optimal ultrasonographic evaluation method for diagnosing CTS in patients with DSP.
- Subjects
CARPAL tunnel syndrome; MEDIAN nerve; ULNAR nerve; DIABETIC neuropathies; CASE-control method; EVALUATION methodology
- Publication
Annals of Rehabilitation Medicine, 2019, Vol 43, Issue 1, p45
- ISSN
2234-0645
- Publication type
Article
- DOI
10.5535/arm.2019.43.1.45