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The Shouldice technique for inguinal hernia repair has been suggested by some authors as the best conventional method against which other methods using prostheses should be compared. The paper which follows is a systematic review involving a comprehensive search of the medical literature to identify all clinical trials (article or abstract) evaluating the Shouldice repair. After assessment of certain quality criteria, the best studies were pooled in a meta-analysis. Nine publications were found with 11 study arms. In ten studies the results of the Shouldice technique were better than the results of the control arm. Six studies could be pooled in a meta-analysis of 2500 patients; Shouldice was significantly better than control methods (relative risk 0.62 (95 per cent confidence interval 0.45-0.85)). In spite of possible bias caused by different variables (modifications in operative technique, suture material, level of surgeon, follow-up methods and outcome measurement), the results of this systematic review suggest that the Shouldice method is the best current conventional technique for inguinal hernia repair.