Inferior lumbar triangle
Citation, DOI, disclosures and article data
Citation:
Venkatesh M, Knipe H, Hacking C, et al. Inferior lumbar triangle. Reference article, Radiopaedia.org (Accessed on 19 Feb 2025) https://doi.org/10.53347/rID-25486
Permalink:
rID:
25486
Article created:
27 Oct 2013,
Manchikanti Venkatesh
Disclosures:
At the time the article was created Manchikanti Venkatesh had no recorded disclosures.
View Manchikanti Venkatesh's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Revisions:
11 times, by
7 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Triangle of Petit
- Petit triangle
- Inferior lumbar triangle of Petit
The inferior lumbar triangle, also known as the Petit triangle, is an anatomical space through which inferior lumbar hernias can occur. It is not to be confused with the adjacent superior lumbar triangle (of Grynfeltt-Lesshaft).
Gross anatomy
Boundaries
- inferiorly: iliac crest
- anteriorly: external oblique muscle
- posteriorly: latissimus dorsi muscle
- floor: internal oblique muscle
Related pathology
History and etymology
The first description of the inferior or superficial lumbar hernia by French surgeon Jean-Louis Petit (1672-1750) in 1738 4,5.
References
- 1. Aguirre D, Santosa A, Casola G, Sirlin C. Abdominal Wall Hernias: Imaging Features, Complications, and Diagnostic Pitfalls at Multi–Detector Row CT. Radiographics. 2005;25(6):1501-1520. doi:10.1148/rg.256055018
- 2. Lillie G & Deppert E. Inferior Lumbar Triangle Hernia as a Rarely Reported Cause of Low Back Pain: A Report of 4 Cases. J Chiropr Med. 2010;9(2):73-76. doi:10.1016/j.jcm.2010.02.001
- 3. Millard D. A Richter's Hernia Through the Inferior Lumbar Triangle of Petit. A Radiographic Demonstration. BJR. 1959;32(382):693-695. doi:10.1259/0007-1285-32-382-693
- 4. Petit JL: Traité des maladies chirurgicales, et des operations qui leur conviennent. Vol. II-Paris: P Mequignon, 1738, 257
- 5. Wade P, Frey C, Lampe E. Traumatic Retroperitoneal Hematoma Followed by Anuria and Lumbar Hernia. Am J Surg. 1965;109(2):253-259. doi:10.1016/s0002-9610(65)80154-4
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