Myositis ossificans

Shawkat, A.H.

doi:10.1016/0030-4220(67)90364-7

Cited by 17 publications

(5 citation statements)

References 2 publications

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“…On the other hand, a relation between dental surgery and the onset of MOT seems obvious. There are 7 case reports of MOT with previous tooth extraction [ 11 – 14 , 20 , 21 , 25 ] though it is not possible to fully differentiate whether the extraction or the dental anesthesia in the context with the extraction represents the triggering event. The latter as a cause of MOT was reported in four cases [ 2 , 15 , 16 , 19 ].…”

Section: Resultsmentioning

confidence: 99%

“…The exact mechanism of the pathogenesis of MOT is unclear. Nevertheless, traumatic, iatrogenic lessions caused by the dentist such as extractions, mandibular block, or periodontal therapy are suspected to be a triggering factor similary to infections like pericoronitis [ 2 , 5 , 10 – 21 ] . Therefore, the aim of this article was to analyse and interpret the existing literature reporting MOT of masticatory muscles and compare the results with the authors own clinical experience with MOT.…”

Section: Introductionmentioning

confidence: 99%

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Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Hanisch

Fröhlich

et al. 2018

Head Face Med

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BackgroundMyositis ossificans describes a heterotopic bone formation within a muscle. Thereby myositis ossificans is classified in two different groups: myositis ossificans progressiva (MOP) which describes a genetic autosomal dominant rare disease and myositis ossificans traumatica (MOT). The exact pathogenesis of MOT is unclear. The aim of this article was to analyse and interpret the existing literature reporting MOT of masticatory muscles and compare the results with our own clinical experience with MOT. Risk-factors, etiology, clinical features, diagnostic imaging, as well as different treatment options were evaluated and recommendations for the prevention, diagnosis, and therapy of MOT of the masticatory muscles were given.MethodsFollowing the PRISMA-Guidelines, a systematic search within the PubMed/Medline database with a view to record literature of MOT of the masticatory muscles was performed. Furthermore, the database of our own clinic was screened for cases of MOT.ResultsIn total, 63 cases of MOT of the masticatory muscles which were reported in English-based literature were included in this study. Overall, 25 female and 37 male patients could be analysed whereas one patient’s gender was unknown. Complication of wisdom-tooth infection (n = 3) as well as the results of dental procedures like dental extraction (n = 7), mandibular nerve block (n = 4), periodontitis therapy (n = 1) were reported as MOT cases. From the 15 reported cases that appeared after dental treatment like extraction or local anesthesia the medial pterygoid (n = 10) was the most affected muscle. Hereof, females were more affected (n = 9) than males (n = 6). The most reported clinical symptom of MOT was trismus (n = 54), followed by swelling (n = 17) and pain (n = 13). One clinical case provided by the authors was detected.ConclusionsDental procedures, such as local anesthesia or extractions, may cause MOT of the masticatory musculature. Demographical analyses demonstrate that females have a higher risk of developing MOT with respect to dental treatment. The most important treatment option is surgical excision. Subsequent physical therapy can have beneficial effects. Nevertheless, a benefit of interpositional materials and drugs as therapy of MOT of the masticatory muscles has not yet been proven. Myositis ossificans progressiva has to be excluded.Electronic supplementary materialThe online version of this article (10.1186/s13005-018-0180-6) contains supplementary material, which is available to authorized users.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Hanisch

Fröhlich

et al. 2018

Head Face Med

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“…Myositis ossificans traumatica (MOT) is a rare and unusual disorder which effectively causes extra‐articular temporomandibular joint ankylosis when it affects the muscles of mastication. Within the literature, 30 cases of MOT of the muscles of mastication have been reported 1,3–30 . A summary of these 30 cases is presented in Table 1.…”

Section: Discussionmentioning

confidence: 99%

“…These events would usually be preceded by an episode of acute or chronic trauma 29 . A possible explanation of MOT occurrence within the masseter muscle is that, anatomically, this muscle is most likely to receive the full impact of any direct trauma, for example, as a result of inter‐personal violence 1,3–30 . Akoi et al.…”

Section: Discussionmentioning

confidence: 99%

“…It usually affects a single/local muscle following either acute or chronic trauma/inflammation and its incidence within the maxillofacial region is extremely low. To our knowledge, there have only been 30 cases reported in the literature of MOT of the muscles of mastication between 1924 and 2002 1,3–30 . The following case describes a 15 year follow‐up of a patient who developed MOT of the temporalis and pterygoid muscles following surgical removal of a lower wisdom tooth.…”

Section: Introductionmentioning

confidence: 99%

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Complication following lower third molar surgery: myositis ossificans traumatica of the muscles of mastication

Seehra

Lloyd

2009

Oral Surgery

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Trismus is a frequent post-op sequelae of third molar surgery. A history of long-standing post-operative trismus warrants further investigation. Myositis ossificans traumatica (MOT), as its name implies, is ossification and bone formation within muscle following an episode of trauma. When it affects the muscles of mastication, it causes severe trismus. This rare disorder and its limited treatment options can potentially have debilitating effects to the patient's normal oral functioning and health. The following is a case report of a patient who developed MOT of the muscles of mastication following surgical exodontia of a lower wisdom tooth, the progress over a 15 year period and a review of the literature. This case demonstrates the longterm difficulties in managing MOT of the muscles of mastication.

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Ossification After Major Trauma

Connor

1983

Soft Tissue Ossification

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Myositis ossificans

Cited by 17 publications

References 2 publications

Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Complication following lower third molar surgery: myositis ossificans traumatica of the muscles of mastication

Ossification After Major Trauma

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