A Prospective Multicentre Study Evaluating the Outcomes of the Abdominal Wall Dehiscence Repair Using Posterior Component Separation With Transversus Abdominis Muscle Release Reinforced by a Retro-muscular Mesh - Filling a Step

Inclusion Criteria: * BA Grade IA according to Björck's initial classification following midline laparotomy from various departments, * ≥ 18 years * both sex * emergency or elective surgery Exclusion Criteria: * BA grade 1B,2,3, and 4 according to Björck's initial classification, * \< 18 years, * primary laparotomy performed through a non-midline incision, open abdomen, * if another laparotomy had been performed between the surgery for BA and the end of the follow-up period, * concomitant intra-abdominal surgery, abdominal complications during BA surgery, * adherent bowel to the defect edge that cannot be separated, * patients lost during follow up, * presence of intra-abdominal contamination that cannot be controlled radiologically, * history of previous BA repair, * stoma exteriorized from the midline primary wound, * temporarily wound closure techniques, * prior abdominal surgeries other than operation resulted in BA, * prior abdominal wall hernia repair with or without mesh, * history of collagen diseases