Kornsgold L M, Herbison G J, Decena B F, Ditunno J F
Department of Rehabilitation Medicine, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107.
Paraplegia. 1994 May;32(5):340-8. doi: 10.1038/sc.1994.58.
Clinical literature suggests that the wrist extensors show a trend of achieving functional strength earlier than the biceps after spinal cord injury (SCI). Basic research, however, demonstrated that proximal muscles recover earlier than distal muscles after partial denervation. The purpose of this study was to compare biceps to extensor carpi radialis (ECR) recovery of muscle strength in 39 motor complete cervical SCI patients. Biceps (n = 19) and ECR (n = 20) with a 72 hour or 1 week motor grade of 1/5 were compared. Testing was performed weekly for 1 month, and again at 2, 3, 6 and 12 months post injury. The median recovery times to increase one motor grade were: biceps = 2 months and ECR = 2.5 months (p < 0.3). The median recovery times to increase two motor grades were: biceps = 2 months and ECR = 3 months (p < 0.4). In conclusion, there was no significant difference between the rates of recovery of the biceps and the ECR up to 12 months post SCI.
临床文献表明，脊髓损伤（SCI）后，腕伸肌比肱二头肌更早呈现出达到功能强度的趋势。然而，基础研究表明，部分去神经支配后，近端肌肉比远端肌肉恢复得更早。本研究的目的是比较39例运动完全性颈髓损伤患者肱二头肌与桡侧腕伸肌（ECR）的肌力恢复情况。比较了运动分级为1/5且时间为72小时或1周的肱二头肌（n = 19）和ECR（n = 20）。每周进行一次测试，持续1个月，并在伤后2、3、6和12个月再次进行测试。提高一个运动分级的中位恢复时间为：肱二头肌 = 2个月，ECR = 2.5个月（p < 0.3）。提高两个运动分级的中位恢复时间为：肱二头肌 = 2个月，ECR = 3个月（p < 0.4）。总之，SCI后12个月内，肱二头肌和ECR的恢复率没有显著差异。
