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. 2007 Oct;11(5):441-4.
doi: 10.1007/s10029-007-0232-5. Epub 2007 May 10.

The clinical anatomy of the triangle of Petit

M Loukas  1 , R S Tubbs, A El-Sedfy, A Jester, S Polepalli, C Kinsela, S Wu
Affiliations

The clinical anatomy of the triangle of Petit

M Loukas et al. Hernia. 2007 Oct.

Abstract

Introduction: Hernias through the triangle of Petit (TP) are uncommon. The anatomy of the TP is known to be variable, yet quantitative data are scant.

Materials and methods: The triangle was observed in 80 adult cadavers and its dimensions and surface area were measured.

Results: On the basis of surface area we classified the triangles into four types. Type I or small TP, with a surface area of <8 cm2, accounted for 43.7% of our specimens. Type II (26.2%) were intermediate in size, with a surface areas of 8-12 cm2. Type III (12.5%) were large triangles with surface areas >12 cm2. Finally, Type IV (17.5%) were not triangles. In these, the latissimus dorsi was covered by the external abdominal oblique muscle.

Conclusions: We hope these data will help prediction of which patients are at greater risk of herniation through the TP.

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