[Posterior iliac crest low back pain]

In the context of low back pain of the posterior iliac crest, various etiologies can be evoked, in particular Maigne's syndrome in D12/L1, ilio-lumbar ligament syndrome or L5/S1 facet syndrome. Maigne's syndrome is a painful segmental vertebral dysfunction leading to a cellulo-periosto-myalgic syndrome. Propedeutic is essential to the diagnosis and is based on a rigorous segmental spinal examination and on the remote search for palpable changes in the texture of the skin, muscle and teno-periosteal tissues. The iliolumbar ligament is a powerful fibrous stabilising element of the lumbosacral hinge. Its tensioning by repeated movements of anteflexion and contralateral lateroflexion-rotation contributes to the expression of a painful symptomatology of the posteromedial iliac crest. Pain in the posterior inter-apophyseal joint L5-S1 is characterised by a more medial lumbosacral pain, accentuated on facet palpation and reproduced on combined heterolateral extension-rotation of the spine. Manual therapy centred on the dorsolumbar or lumbosacral hinge is recommended as a first-line treatment to control these different diagnoses. Rehabilitation of the motor control of the deep stabilising muscles of the dorsolumbar spine is essential. Various local infiltrations often complete the physiotherapy approach.