Prospective outcome analysis of ulnar tunnel syndrome: Comparing traumatic versus non-traumatic etiologies

Ulnar tunnel syndrome (UTS) is relatively uncommon compared to the carpal tunnel or cubital tunnel syndromes. Few reports dedicated to the functional outcomes after surgical intervention of the UTS exist. Herein we compare the outcomes of patients with UTS of different etiologies. Patients diagnosed...

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Bibliographic Details
Published in:Asian journal of surgery 2023-01, Vol.46 (1), p.180-186
Main Authors: Li, Chun-Wei, Wu, John Chung-Han, Lan, Ching-Yu, Lee, Che-Hsiung, Huang, Ren-Wen, Lin, Cheng-Hung, Hsu, Chung-Chen, Lin, Yu-Te, Chen, Shih-Hsien, Tang, Yueh-Bih, Chen, Hung-Chi, Chen, Shih-Heng
Format: Article
Language:English
Subjects:
Aberrant muscle
Guyon's canal
Trauma
Ulnar nerve
Ulnar tunnel syndrome
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Summary:Ulnar tunnel syndrome (UTS) is relatively uncommon compared to the carpal tunnel or cubital tunnel syndromes. Few reports dedicated to the functional outcomes after surgical intervention of the UTS exist. Herein we compare the outcomes of patients with UTS of different etiologies. Patients diagnosed with UTS between 2016 and 2020 were recruited. Ulnar tunnel release was performed in all patients, along with other necessary osteosynthesis or reconstructive procedures in the traumatic group. Patients were followed-up every six months post-operatively. Outcomes measured include: objective evaluations, subjective questionnaires, records of clinical signs, and grading of the British Medical Research Council scale for intrinsic muscle strength. 21 patients were recruited, and favorable results were noted in all of them after surgery. Traumatic UTS patients had a worse initial presentation than the non-traumatic cases, but had a greater improvement after surgery and yielded outcomes comparable with those of the patients without trauma. Patients with aberrant muscles in their wrists had better outcomes in some objective measurements than those without aberrant muscles. Ulnar tunnel release improves the outcome of patients regardless of the etiology, especially in patients with trauma-induced UTS. Thus, a proper diagnosis of the UTS should be alerted in all patients encountering paresthesia in the ulnar digits, ulnar-sided pain, weakness of grip strength, or intrinsic weakness to ensure good outcomes.
ISSN:1015-9584
DOI:10.1016/j.asjsur.2022.03.006