Management of trismus by masseter myotomy

Abstract

Mild trismus after parotid gland surgery may be related to inflammation and fibrosis of the masseter muscle. We present a case of long standing trismus due to masseter muscle spasm caused by a recurrent pleomorphic adenoma. As the patient did not agree for removal of the pleomaorphic adenoma, owing to the risk of injuring the facial nerve, a masseter myotomy with inter-positioning of temporalis fascia was planned for symptomatic relief. Mouth opening showed significant improvement even 1 year post-operatively.

Keywords

• Masseter myotomy
• recurrent pleomorphic adenoma
• temporalis fascia inter-positioning
• trismus