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Heterotopic ossification in vertebral interlaminar/interspinous instrumentation: report of a case.
MedLine Citation:
PMID:  22888459     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We present here a rare case of heterotopic ossification in interspinous/interlaminar Coflex device. The classical surgical indications for these implants are degenerative canal stenosis, discogenic low back pain, disk herniations, facet syndrome, and instability. However, fractures of spinous processes are a potential risk after interspinous/interlaminar devices' implantation. Recently, heterotopic ossification, a well-known complication of hip and knee arthroplasty, has been reported after cervical and lumbar prosthesis. We performed undercutting and implantation of the dynamic interspinous/interlaminar device to treat an adult male patient with L4-L5 stenosis. The patient underwent 45-day imaging and clinical followup, and we observed both a neurological and imaging improvement. A CT bone scan, performed 3 years after surgery for recurrence of neurogenic claudication, showed a new stenosis due to an abnormal ossification all over the device. To our knowledge, this is the first reported case of heterotopic ossification in an interspinous/interlaminar dynamic device. Accordingly, we aim to suggest it as a new complication of interspinous/interlaminar devices.
Authors:
Giuseppe Maida; Eleonora Marcati; Silvio Sarubbo
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Publication Detail:
Type:  Journal Article     Date:  2012-07-24
Journal Detail:
Title:  Case reports in surgery     Volume:  2012     ISSN:  2090-6919     ISO Abbreviation:  Case Rep Surg     Publication Date:  2012  
Date Detail:
Created Date:  2012-08-13     Completed Date:  2012-08-23     Revised Date:  2013-04-02    
Medline Journal Info:
Nlm Unique ID:  101580191     Medline TA:  Case Rep Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  970642     Citation Subset:  -    
Affiliation:
Division of Neurosurgery, Department of Neuroscience and Rehabilitation, University-Hospital S. Anna, 8 Via Aldo Moro, 44124 Ferrara, Italy.
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