| Post-traumatic severe trismus caused by impairment of the masticatory muscle. | |
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MedLine Citation:
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PMID: 15750425 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Restriction of the mouth opening from a pathologic condition outside the temporomandibular joint is called a pseudo- or extra-articular ankylosis. The authors report two cases of severe post-traumatic pseudoankylosis. One case showed fibrous degeneration of the bilateral masseter muscles without a facial bone fracture, which caused severe trismus, a mouth opening of less than 2 mm, and gradually appeared after blunt injuries to the face. The other was a rare case accompanied with the bone formation in the masseter muscle and was diagnosed as myositis ossificans traumatica, which also presented as severe trismus, with a maximal mouth opening of 5 mm after facial violence. Both were surgically treated with dissection of the affected muscles. In addition, a hemicoronoidotomy was performed in the case of myositis ossificans traumatica. Although a conservative therapy with physical rehabilitation is the basic policy for the management of pseudoankylosis of the temporomandibular joint, a surgical treatment should be considered when the origin of the problems is an osteogenic character or severe extra-articular ankylosis resistant to conservative therapy before completion of true temporomandibular joint ankylosis. |
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Authors:
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Hiroki Yano; Hidenaga Yamamoto; Reijiro Hirata; Akiyoshi Hirano |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: The Journal of craniofacial surgery Volume: 16 ISSN: 1049-2275 ISO Abbreviation: J Craniofac Surg Publication Date: 2005 Mar |
Date Detail:
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Created Date: 2005-03-07 Completed Date: 2005-05-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9010410 Medline TA: J Craniofac Surg Country: United States |
Other Details:
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Languages: eng Pagination: 277-80 Citation Subset: D |
Affiliation:
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Department of Plastic & Reconstructive Surgery, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan. h-yano@net.nagasaki-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Facial Injuries / complications Fibrosis Humans Male Masseter Muscle / injuries*, pathology Muscular Diseases / etiology Myositis Ossificans / etiology Trismus / etiology* Wounds, Nonpenetrating / complications |
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