myopectineal orifice
Pronunciation: /ˌmaɪoʊˈpɛktɪniəl/
Also written as: MPO — Myopectineal Orifice
The anatomical space bounded by muscle and ligament through which inguinal hernias occur, targeted during laparoscopic repair.
Full Definition
The myopectineal orifice is the anatomical space bounded by the conjoint tendon medially, the iliopubic tract laterally, and extends from the midline to the anterior superior iliac spine. This area encompasses all potential sites of inguinal hernia formation including direct, indirect, and femoral hernias. During laparoscopic hernia repair, mesh is placed to cover this entire orifice to prevent hernia recurrence at any location.
Usage
Usage note: Often abbreviated as MPO in surgical literature.
In Context
- "Complete coverage of the myopectineal orifice with mesh reduces the risk of hernia recurrence." — Surgical technique guide
- "The mesh was positioned to adequately cover the entire myopectineal orifice from midline to anterior superior iliac spine." — Operative report