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Background&Objective: Pain, in particular post-operative pains, can produce numerous complications including a delay in healing of wounds in patients. For pain relief in patients postoperatively, different drugs are used, opioids like pethidine and NSAIDs. This study was carried out to compare the effects of the IM pethidine and suppository Diclofenac for pain relief after laminectomy following lumbar disc hernia.
Materials&Methods: this is a randomized control clinical trial study, 100 patients presenting for laminectomy with diagnosis of lumbar disc hernia and eligible for participation in the study, after recieving their informed consent for inclusion in the study non probability convenience sampling were selected by a convenience sampling method and then divided into two groups of Pethidine (P) and Diclofenac (D). Patients’ pain scores were measured by Visual Analogue Scale (VAS). Finally, the data obtained were analyzed by statistical software of SPSS.10, F test, T test and ?² P<0.05 was considered significant.
Results: Mean pain scores within 24 hours after operation were calculated in group P as 2.8±2.02 and in group D as 4.46±2.30. There was a statistically significant difference between the reduction of the pain score after surgery in both groups (p<0.05). Nausea was the greatest side effect observed in group P (23%) and epigastric pain was the most common pain found in group D (18%). However, no statistically significant difference was found between the two groups in terms of the drug adverse effects.
Conclusion: A statistically significant difference was observed between pethidine ampule and Diclofenac suppository regarding the pain reduction after laminectomy. In the other words, Diclofenac suppository has less impact on pain killing in comparision with Pethidine ampule. In other to confirm these results, it is suggested that another study in terms of age and sex and after orthopedical procedures in a large scale-and if possible double blind- to be carried out.

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Background and Objective: Meralgia paresthetica (MP) is due to lateral femoral cutaneous nerve (LFCN) involvement if it is left either unattended miss treated it can be followed by significant disabilities. This study was done to compare the neurolysis and nerve resection in treatment refractory of Meralgia paresthetica. Materials and Methods: This descriptive - comparative study was carried out on 14 patients (7 males and 7 females) afflicted with Meralgia paresthetica and resisted to theraputical regiment in Poorsina hospital in Rasht, North of Iran during 2001-08. The patients were selected non-randomly and neurolysis were gone under either neurolysis or nerve resection surgery with 18-month follow-up. Results: All 5 patients with neurolysis operation were found to have the recurrent symptoms. Non of the patient operated with nerve resection demostrated the clinical manifestation of the recurment sympotms, following 18 month follow-up. The success rate of neurolysis and nerve resection were determined to be 3% and 98.8% respectively. Six women and three men are LFCN-resected a woman and four men treated with neurolysis. The mean age and the disease onset length were 64.6%±9.8 year and 18±11 months, respectively. Conclusion: Nerve resection method is suggested in patients with Meralgia paresthetica resisted to theraputical treatment.