School of Physical Therapy and Rehabilitation, Pamukkale University, Denizli, Turkey.
Department of Orthopaedics and Traumatology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
Physiother Theory Pract. 2023 Aug 3;39(8):1563-1573. doi: 10.1080/09593985.2022.2043499. Epub 2022 Mar 1.
Despite advances in hand therapy and surgery, functional deficits persist after flexor tendon repair especially in zone I-III. This suggests that methods applied may be insufficient. Electromyographic (EMG) biofeedback may provide an effective tendon gliding through visual and auditory feedback.
The purpose of this study was to investigate the effect of EMG biofeedback training applied in addition to early passive motion protocol on functional status in zone I-III flexor tendon injuries.
Patients were randomly assigned into two groups, each consisted of 11 patients. In addition to early passive motion method, EMG biofeedback training was applied in the first group. The second group was followed only with early passive motion protocol. Joint range of motion (ROM), Michigan Hand Outcomes Questionnaire (MHQ) and grip strength were evaluated.
There were no significant differences between the groups in terms of the ROM, MHQ scores and grip strength (p ≥ .087). However, there were clinically important differences in the results of the 12th week ROM (effect size = 0.70), 24th week activity of daily living (ADL) score in MHQ (effect size = 0.68), 12th week gross, tip pinch and lateral grip strength (effect sizes = 0.59, 0.52, 0.81, respectively) and 24th week gross, tip pinch and lateral grip strength (effect sizes = 0.69, 0.73, 0.69, respectively) between the two groups.
EMG biofeedback training was clinically but not statistically superior to early passive motion method in terms of the effect on functional status.
尽管手部治疗和手术技术取得了进步，但屈肌腱修复后仍存在功能障碍，尤其是在 I-III 区。这表明应用的方法可能不够充分。肌电图（EMG）生物反馈可能通过视觉和听觉反馈提供有效的肌腱滑动。
本研究旨在探讨 EMG 生物反馈训练在早期被动运动方案基础上对 I-III 区屈肌腱损伤功能状态的影响。
患者随机分为两组，每组 11 例。第一组除早期被动运动方法外，还应用 EMG 生物反馈训练。第二组仅采用早期被动运动方案。评估关节活动度（ROM）、密歇根手功能问卷（MHQ）和握力。
两组在 ROM、MHQ 评分和握力方面无统计学差异（p≥.087）。然而，在第 12 周 ROM（效应量=0.70）、第 24 周日常生活活动（ADL）评分的 MHQ（效应量=0.68）、第 12 周总握力、指尖捏力和侧握力（效应量分别为 0.59、0.52、0.81）和第 24 周总握力、指尖捏力和侧握力（效应量分别为 0.69、0.73、0.69）方面，两组之间存在临床重要差异。
在功能状态的影响方面，EMG 生物反馈训练在临床上优于早期被动运动方法，但无统计学意义。
