الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
1- Introduction: There are many researchers studied the recovery of the nerves following injuries. The recovery of the nerves after the injuries is a normal process however it is slow and incomplete. 2- materials and methods: Thirty adult male Wistar rats were involved in this study. The right sciatic nerve was freed then compressed at the same level of the sciatic notch, 3mm distal to the superior gluteal branch of the sciatic nerve Crushing was induced to the sciatic nerve using a portable device A photon plus Semi conductor Diode AlGaInP Laser was used The SFI is certified as a thematic and quantitative mode to estimate healing of sciatic nerve after damage 3- results: The wounds healed without complications, and all the animals continued to increase in weight satisfactorily during, the 28 post-operative days Functional assessment was undertaken at 1, 3, 10, 20 and 27 days postoperatively. The ANOVA test for foot print measurements revealed significant differences regarding the times factor. 4- discussion: The damage of peripheral nerves in not uncommon. Causes include traumatic injuries, inflammatory disorders, and chemotherapy. Such damage can result in secondary muscle atrophy. Consequently, this disorder carry a devastating effect on the patient’s psychological status and quality of lifeDifferent methods have been advocated to induce compressive nerve damage in animal models; including tourniquets, forceps and hemostats. 5- conclusion: Low level laser therapy is a promising modality for treating crushing nerve injuries.The Early use of LLLT following nerve injury minimizes the immediate functional loss.