Primary Jean Louis Petit and Grynfeltt-Lesshaft concomitant hernias: A case report

Posterior abdominal wall hernias are rare, mainly post traumatic or post-operative. This case is particular first by its mechanism, it is a primary lumbar hernia and secondly it is a concomitant hernia of the Jean Louis Petit triangle and the Grynfeltt triangle.

The patient was a 67 years old man, a former farmer. He complaint of a painful tumefaction on his back evolving for the last 2 years. After clinical examination, a diagnosis of lumbar hernia was retained. The CT scan which is the gold standard was not performed due to financial limitations. An hernioplasty with a porcine collagen mesh was done, in per operative we found a Jean Louis Petit hernia and a Grynfeltt-Lesshaft hernia. Any post-operative complications.

Lumbar hernia is not a common diagnosis, and most of time is misdiagnosed. Acquired primary lumbar hernia can be due to profession involving lumbar constraints leading to the weakness of muscles. This was the case of our patient. Another particularity was the double hernia, the upper and lower lumbar triangles. We already know the impact of his profession and may be 20 years of this leaded to the double hernia? An hernioplasty in open surgery was proposed for multiples reasons: the age of the patient, the weakness of the muscle, a large exploration of the hernia, to reinforce the posterior lumbar wall and to prevent a recidivism.

Jean Louis Petit and Grynfeltt-Lesshaft hernias are very uncommon. Few cases have been reported.