脊髓损伤患者下肢胫神经H反射和F波的临床观察

目的：观察脊髓损伤(SCI)患者不同时期下肢胫神经H反射和F波的变化与临床神经体征之问的关系及电生理评定方面的意义。方法：对同一时期在我科住院的24例SCI患者进行双下肢胫神经H反射和F波检查．同时采用Ashworth痉挛评定方法评定及记录患肢肌张力、腱反射等。观察H反射和F波的特征表现与临床体征之间的关系。结果：SCI患者临床不同时期，下肢H反射和F波的表现不同．H反射和F波的表现特征受神经体征严重程度的影响。结论：H反射和F波有可能做为临床评定痉挛的客观电生理指标，它优于主观的Ashworth等痉挛评定方法．但尚需通过临床观察来完善这一指标的评定标准。

Clinical Observation of H-reflex and F-wave of Tibal Nerve in Patients with Spinal Cord Injury

Objective: To observe the changes in H-r ef lex and F-wave in tibal nerve of the patients with spinal cord injury (SCI) at different stages and their relationship with clinical neurological signs. Method s:Twenty-four in-patients with SCI were examined for the H-reflex and F-wa ve of the tibal nerves in the two lower extremities. At the same time, the muscl e tone and the tendon reflex were recorded with a modified Ashworth scale of mus cle spasticity. The relationship between H-reflex and F-wave features and clin ical neurological signs was observed. Results:At different stages in patients with SCI, the characteristic appearance s of the H-reflex and F-wave in tibal nerve were varied, and they were affecte d by the degree of neurological injury. Conclusion:H-reflex and F-wave may be used as an electrophysiological index in clinical assessment in further study.