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KMID : 0361420140380010064
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Journal of Korean Academy of Rehabilitation Medicine
2014 Volume.38 No. 1 p.64 ~ p.71
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Subclinical Ulnar Neuropathy at the Elbow in Diabetic Patients
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Jang Ji-Eun
Kim Yun-Tae
Park Byung-Kyu
Cheong In-Yae
Kim Dong-Hwee
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Abstract
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Objective: To demonstrate the prevalence and characteristics of subclinical ulnar neuropathy at the elbow in diabetic patients.
Methods: One hundred and five patients with diabetes mellitus were recruited for the study of ulnar nerve conduction analysis. Clinical and demographic characteristics were assessed. Electrodiagnosis of ulnar neuropathy at the elbow was based on the criteria of the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM1 and AANEM2). The inching test of the ulnar motor nerve was additionally performed to localize the lesion.
Results: The duration of diabetes, the existence of diabetic polyneuropathy (DPN) symptoms, the duration of symptoms, and HbA1C showed significantly larger values in the DPN group (p<0.05). Ulnar neuropathy at the elbow was more common in the DPN group. There was a statistically significant difference in the number of cases that met the three diagnostic criteria between the no DPN group and the DPN group. The most common location for ulnar mononeuropathy at the elbow was the retrocondylar groove.
Conclusion: Ulnar neuropathy at the elbow is more common in patients with DPN. If the conduction velocities of both the elbow and forearm segments are decreased to less than 50 m/s, it may be useful to apply the AANEM2 criteria and inching test to diagnose ulnar neuropathy.
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KEYWORD
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Diabetes mellitus, Diabetic polyneuropathy, Ulnar neuropathy, Elbow, Entrapment
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