title: A potentially underrecognized and treatable cause of chronic back pain: entrapment neuropathy of the cluneal nerves.
abstract: We describe a case of longstanding low back pain related to entrapment neuropathy of the L1-L2 dorsal ramus over the iliac crest. As 3 local anesthetic pain blocks (at the trigger point, 7 cm left of the L5 spine process and just above the iliac crest) were successful for 3 weeks each, a surgical procedure was performed. This corrected patient stricture of a voluminous dorsal ramus within a rigid osteofibrous orifice between the upper rim of the iliac crest and the thoracolumbar fascia. Pain decreased dramatically the same day and disappeared completely within less than a week.
authors.affiliation: Department of Rheumatology, Nantes University Hospital, France.
authors.forename: J M
authors.initials: JM
authors.lastname: Berthelot
authors.forename: J
authors.initials: J
authors.lastname: Delecrin
authors.forename: Y
authors.initials: Y
authors.lastname: Maugars
authors.forename: F
authors.initials: F
authors.lastname: Caillon
authors.forename: A
authors.initials: A
authors.lastname: Prost
mesh_terms: D001416:Back Pain / Q000209:etiology*; D005260:Female; D006801:Humans; D007085:Ilium; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000150:complications* / Q000601:surgery; D012074:Remission Induction; D012867:Skin / Q000294:innervation*