Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Lumbar hernia
Introduction
Overview
Overview
Lumbar hernia occurs through defects in the lumbar muscles or the posterior fascia, below the 12th rib and above the iliac crest. It usually occurs after surgery or trauma. Herniation may occur through the superior (Grynflett-Lesshaft) or, less commonly, the inferior (petit) lumbar triangle. Superior lumbar triangle is bordered by the internal oblique muscle anteriorly, the 12th rib superiorly, and the erector spinal muscle posteriorly.The inferior lumbar triangle is bordered by the external oblique muscle anteriorly, the iliac crest inferiorly, and the latissimus dorsi muscle posteriorly.
Natural History, Complications and Prognosis
Natural History, Complications and Prognosis
Complications
- Small bowel obstruction
- Incarceration: hernia cannot be reduced or pushed back manually
- Strangulation: ischemia caused by a compromised blood supply
Diagnosis
Diagnosis
CT images demonstrate a right lumbar hernia
References
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]