بررسي آسيب عصب سياتيك ناشي از تزريق عضلاني ناحيه گلوتيال

EVALUATION OF SCIATIC NERVE INJURY DUE TO GLUTEAL INJECTION

Introduction : One of the most common causes of sciatic nerve injury is injection into buttock area. Most of the injuries are due to toxic effect of drug that cause acute or chronic fibrosis. Direct injection to the nerve itself rarely occur. Methods & materials : 60 cases of sciatic nerve injury due to buttock injection were undergone clinical and electrodiagnostic evaluation in 1999-2002 . Results : 74% of patients were male & 26% were female. In 53% of cases left sciatic nerve injured and 47% of cases involved right sciatic nerve. one patient had bilateral involvement. 90% of injuries were due to diclofenac - Na injection and 10% due to other drugs such as piroxicam, vitamin B6, penicillin. In 88% of cases peroneal portion of sciatic nerve was involved and in 12% tibial portion. 13% of patients had severe lesion, 76% moderate and 10% mild. Discussion : Recommendations for prevention of this injury are: No diclofenac injection in age <15 and age >65, avoiding of diclofenac injection in thin patients, proper technique of injection by experienced staff, prescription of oral and suppository form bf drugs as possible. According to severity of lesion, surgery for severe cases & rehabilitation (conservative) for mild and moderate cases are recommended.