Comparative Radiographic Analysis of Changes in the Abdominal Wall Musculature Morphology after Open Posterior Component Separation or Bridging Laparoscopic Ventral Hernia Repair

Abstract

Similar to anterior component separation, hernia repair with TAR results in hypertrophy of the rectus abdominis muscle. In addition, we found that TAR was associated with hypertrophy of both external and internal oblique muscles. Bridging repair during LVHR, on the other hand, did not result in any significant changes in any of the abdominal muscles. Our findings provide clear radiologic evidence that re-creation of the midline by means of the TAR leads to improved anatomy of the abdominal wall, in addition to positive compensatory changes of the lateral abdominal wall musculature.