Comparing Transversus Abdominus Release and Anterior Component Separation Techniques in Reconstructing Midline Hernias – A Cadaveric Study

Midline hernias result in abdominal wall defects that can be reconstructed with autologous tissue utilizing component separation of the abdominal wall. The first technique described was anterior component separation described by Ramirez et al1 where the release of the external oblique aponeurosis allowed advancement of the rectus abdominus medially to the midline, thus allowing closure of ventral midline defects with autologous tissue. The technique, however, involved dissection of the subcutaneous tissues laterally which often created devascularized skin flaps and increased the risk of poor wound healing with the risk of skin necrosis.

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