Figure 6.

The steps of a transversus abdominis release-maneuver (TAR): (A) Lateral incision of the posterior rectus sheath and dorsolateral dissection along the transverse abdominis muscle (green arrow). Caudal extension of the dissection follows the urogenital fascia into the pelvis (B-E) reaching the space of Bogros in the superficial parietal layer that is so carefully avoided during a TEP procedure (red part of bifurcated arrow). A switch of dissection into the deep visceral layer, analogue to the dissection in TEP is necessary if a prosthetic mesh should also cover a groin hernia (green part of bifurcated arrow).