Gotlin R S, Hershkowitz S, Juris P M, Gonzalez E G, Scott W N, Insall J N
Department of Physical Medicine and Rehabilitation, Beth Israel Medical Center, New York, NY 10128.
Arch Phys Med Rehabil. 1994 Sep;75(9):957-9.
The effects of electrical stimulation in conjunction with traditional physical therapy, on knee extensor lag and length of hospital stay among patients recovering from total knee arthroplasty were assessed. Forty patients who underwent total knee replacement (TKR) were randomly assigned to either an electrical stimulation group (16 females, 5 males), or a control group (15 females, 4 males). Both groups received conventional physical therapy including continuous passive motion (CPM) to the affected limb, ambulation training, range of motion exercises, and activities of daily living (ADL) training. The experimental group additionally received electrical stimulation during CPM treatment. Experimental group subjects reduced their extensor lag from 7.5 to 5.7 degrees, whereas control group extensor lag increased from 5.3 to 8.3 degrees. These trends were significantly different (p < .01). Rehabilitation discharge criteria were reached in 6.7 days in the experimental group and 7.4 days in the control group. These differences were also significant (p < .05). The results of this study indicate that the application of electrical stimulation during recovery from TKR can effectively reduce extensor lag and decrease the length of hospital stay.
评估了电刺激结合传统物理治疗对全膝关节置换术后患者膝关节伸肌滞后和住院时间的影响。40例行全膝关节置换术（TKR）的患者被随机分为电刺激组（16名女性，5名男性）或对照组（15名女性，4名男性）。两组均接受常规物理治疗，包括对患侧肢体进行持续被动运动（CPM）、步行训练、关节活动度练习和日常生活活动（ADL）训练。实验组在CPM治疗期间额外接受电刺激。实验组受试者的伸肌滞后从7.5度降至5.7度，而对照组的伸肌滞后从5.3度增加到8.3度。这些趋势有显著差异（p <.01）。实验组在6.7天达到康复出院标准，对照组在7.4天达到。这些差异也具有显著性（p <.05）。本研究结果表明，TKR术后恢复期间应用电刺激可有效减少伸肌滞后并缩短住院时间。
