Intraoperative electrophysiological studies to predict the efficacy of neurolysis after nerve injury-experiment in rats.

نویسندگان

  • Ji-Geng Yan
  • Mary P Eldridge
  • William W Dzwierzynski
  • Yu Hui Yan
  • Safwan Jaradeh
  • Lin-Ling Zhang
  • James R Sanger
  • Hani S Matloub
چکیده

Compound muscle action potentials (CMAPs) can be used to analyze injury and recovery of nerve. This standardized study evaluates the value of CMAP analysis in predicting the long-term efficacy of neurolysis. CMAP amplitude is also used to determine the optimal extent of neurolysis. The left peroneal nerves of 30 rats were crushed. CMAPs were recorded for both crushed (left) and control (right) nerves. Fifteen rats underwent neurolysis 3 months post crush injury; the remaining 15 were sham controls and did not undergo neurolysis. CMAP measurements were taken after: (1) release of the nerve from the fascia, (2) opening the epineurium, and (3) opening the perineurium. At 3 months post crush injury, opening the epineurium resulted in a statistically significant increase in CMAP. CMAP increase with perineurial neurolysis was greater than with fascial release of the nerve but was not statistically different from that of epineurial release. At 5 months post crush injury, recovery of crushed nerves that underwent neurolysis was 90% and significantly less at 70.5% in rats not treated with neurolysis, according to CMAP analysis. Two conclusions can be made from this study. First, intraoperative neurophysiologic studies can monitor the immediate results of neurolysis and predict long-term results in the injured nerve. Second, epineurotomy is important in neurolysis, improves the function of the nerve, less invasive, and a slightly more effective technique than perineurotomy.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electrophysiological Study of Sciatic Nerve Regeneration Through Tubes Seeded with Schwann Cells

A B S T R A C TIntroduction: Peripheral nerve injury is a common disorder and leads to permanent neurological defects. Schwann cells have been shown to have nerve repair after being transplanted in peripheral nerve injury. The aim of this study was to determine the beneficial effect of allograft Schwann cells on electrophysiological outcome after transection of the sciatic nerve in rats.Methods...

متن کامل

The Effect of Ultrasound on Acceleration of Peripheral Nerve Injury

Background: Many people suffer from nerve injury. The time consuming nature of the treatments makes the condition worse. Therefore, finding a way to accelerate the process of nerve repair is very important.Objective: To determine the effect of ultrasound on the acceleration of crushed peripheral nerve regeneration.Methods: The experimental model included crushed rat’s sciatic nerve. 40 rats w...

متن کامل

بررسی پاسخهای رفتاری و الکتروفیزیولوژی در مدل درد نوروپاتی SNI در موش صحرایی نر بالغ

Background and Aim: Damage to neural pathways is one of the most significant factors of neuropathic pains, which is characterized by spontaneous burning pain accompanied by allodynia and hyperalgesia. The present study was carried out to explore behavioral and electrophysiological characteristics of neuropathic pain model of Spared Nerve Injury (SNI). Materials and Methods: In this experimenta...

متن کامل

Augmenting Peripheral Nerve Regeneration Using Rat Hair Follicle Stem Cells (rHFSCs) in Rats

Introduction: Nowadays, cell therapy is the most advanced treatment of peripheral nerve injury. The aim of this study was to determine the effects of transplantation of hair follicle stem cells on the regeneration of the sciatic nerve injury in rats. Methods: The bulge region of the rat whisker was isolated and cultured. Morphological and biological features of the cultured bulge cells were ob...

متن کامل

Combined effect of chronic progesterone administration with compulsive exercise on prevention of TNF-α production and abnormal electrophysiological responses of sciatic nerve in Chronic Constriction injury pain model in rat

Introduction: Neuropathic pain has no definitive treatment and the socio-economic status and personality of patient is severely affected. Since the exercise and/or progesterone effect on Chronic Constriction injury (CCI) neuropathic pain has been studied and each individually have been able to improve neuropathic pain and as a part of its etiology is related to TNF-α production, we tried to tes...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Hand

دوره 3 3  شماره 

صفحات  -

تاریخ انتشار 2008