Myositis Ossificans Traumatica of the Medial Pterygoid Muscle Following Third Molar Tooth Extraction: A Case Report and Review of Literature

Publication date: Available online 10 July 2018

Source: Journal of Oral and Maxillofacial Surgery

Author(s): Soner Karaali, Ufuk Emekli

Abstract

Myositis ossificans (MO) is a rare non-neoplastic disorder characterized by heterotopic ossification in soft tissues, mainly muscles. Myositis ossificans traumatica is characterized by ossification of soft tissues following acute or repetitive trauma, burns, or surgical intervention. Muscular or soft tissue trauma is usually present as the underlying etiology. Myositis ossificans traumatica usually involves extremity muscles. The number of reported cases involving masticatory muscles is extremely low. The most common clinical sign of this condition is progressive limitation of mouth opening. Surgical resection of ossified tissue is the most commonly used treatment for this disorder, with a high postoperative recurrence rate. This paper aimed to report a case of traumatic myositis ossificans of the medial pterygoid muscle to draw attention to the possibility of the condition in patients with limited mouth opening, and to review the literature about myositis ossificans traumatica involving medial pterygoid muscle.

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