In a totally extraperitoneal (TEP) laparoscopic inguinal hernia repair, the space developed is the:
- A Retzius space (space of Bogros is the lateral extension) between the peritoneum and the posterior rectus sheath and transversalis fascia ✓
- B Peritoneal cavity with mobilization of the sigmoid colon
- C Space between the external and internal oblique muscles
- D Retroperitoneal space posterior to the iliopsoas muscle
Correct answer: A. Retzius space (space of Bogros is the lateral extension) between the peritoneum and the posterior rectus sheath and transversalis fascia
Explanation
TEP repair develops the preperitoneal space (space of Retzius medially and space of Bogros laterally) between the posterior surface of the rectus abdominis/transversalis fascia and the peritoneum, without entering the peritoneal cavity. The balloon dissector creates this extraperitoneal plane, which is then used to reduce the hernia sac and place a mesh over the myopectineal orifice. This distinguishes TEP from TAPP (transabdominal preperitoneal) where the peritoneal cavity is entered first.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.