• Shah Nawaz M Dodwad, Steven R Niedermeier, Elizabeth Yu, Tania A Ferguson, Eric O Klineberg, and Safdar N Khan.
• Department of Orthopaedics, The Ohio State University, 725 Prior Hall, 376 W. 10th Ave., Columbus, OH 43201, USA.
• Spine J. 2015 Jun 1;15(6):e45-51.

Background ContextThe Morel-Lavallée lesion occurs from a compression and shear force that usually separates the skin and subcutaneous tissue from the underlying muscular fascia. A dead space is created that becomes filled with blood, liquefied fat, and lymphatic fluid from the shearing of vasculature and lymphatics. If not treated appropriately, these lesions can become infected, cause tissue necrosis, or form chronic seromas.PurposeTo review appropriate identification and treatment of Morel-Lavallée lesions in spinopelvic dissociation patients.Study DesignUncontrolled case series.MethodsRetrospective review of medical records. No funding was received in support of this study. The authors report no conflicts of interest.ResultsWe present four cases of patients with traumatic spinopelvic dissociation. All had concomitant lumbosacral Morel-Lavallée lesions. All four trauma patients suffered traumatic spinopelvic dissociation with concomitant lumbosacral Morel-Lavallée lesions. Appropriate treatment included irrigation and debridement, drainage, antibiotics, and vacuum-assisted wound closure.ConclusionsOur series reflects an association of Morel-Lavallée lesion in spinopelvic dissociation trauma patients. Possibly, the rotatory injury that occurs at the spinopelvic junction creates a shear force to form the Morel-Lavallée lesion. When presented with a spinopelvic dissociation patient, one should be prepared to treat a Morel-Lavallée lesion.Copyright © 2015 Elsevier Inc. All rights reserved.

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