The results of histological investigation of musculo-aponeurotic tissues of lumbar-lateral abdominal portion were analyzed. There was established, that relaxation and atrophy of these tissues had occurred due to nervous structures and vessels cutting with consequent development of postoperative lumbar-lateral hernias. The plastic material fixation to the bearing structures of lumbar-lateral portion of abdominal wall, specifically to posterior wall of m. rectus abdominis aponeurotic sheath and the twelve rib cartilage constitutes the peculiarity of surgical treatment of postoperative lumbar-lateral abdominal hernias. According to the data of investigation, in 119 of the first group of patients operated on there were no recurrences, in the patients of comparative group, operated on using the standard method of alloplasty, the recurrences had occurred in 8.9% of observations.
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