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Various surgical techniques for the repair of injured vas deferens in rat experiment Introduction: The herniotomy for inguinal hernia is one of the most frequent surgical procedures in paediatric surgery. The incidence of complication following primary inguinal herniotomy in neonates is not rare and repair of the injured vas deferens (VD) is not standardized. The aim of this experimental study was to assess the contusion of VD during the surgery with a surgical instrument and to perform and consequently analyze some possibilities of a simple repair method under the control of operating loupe. Methods: Seventy male rats were divided into seven subgroups according to the type of the vas deferens injury and its repair consequently: 1. Contusion, 2. cut-off and a simple one layer vasovasostomy sewn by absorbable sewing material, 3. cut-off and joining by an intraluminally lead fibre of absorbable sewing material knotted externally, 4. = 3. using non- absorbable sewing material, 5. = 2. combine with intraluminally situated absorbable sewing fibre fixed externally,6. = 5. combine with intraluminally situated non-absorbable sewing fibre fixed externally, 7. = 5. without external fixation. Fibres of non-absorbable sewing material were removed 3 weeks after the first operation. Operated or injured parts of...