Mandibular Deviation With Longstanding Temporomandibular Joint Dislocation Caused by Lateral Pterygoid Muscle Hyaline Degeneration

Zhixin Zheng; Wei Hao; Xing Long; Fang Wei

doi:10.1097/SCS.0000000000010275

Mandibular Deviation With Longstanding Temporomandibular Joint Dislocation Caused by Lateral Pterygoid Muscle Hyaline Degeneration

J Craniofac Surg. 2024 May 14. doi: 10.1097/SCS.0000000000010275. Online ahead of print.

Authors

Zhixin Zheng¹, Wei Hao², Xing Long^{1

3}, Fang Wei^{1

3}

Affiliations

¹ State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education Hubei Key Laboratory of Stomatology School & Hospital of Stomatology.
² Department of Stomatology, Huangmei County People's Hospital, Huangmei, Hubei, China.
³ Department of Oral and Maxillofacial Trauma and Temporomandibular Joint Surgery, School of Stomatology, Wuhan University, Wuhan.

PMID: 38743037
DOI: 10.1097/SCS.0000000000010275

Abstract

The present report described a rare case of mandible deviation with longstanding unilateral temporomandibular joint dislocation caused by lateral pterygoid muscle hyaline degeneration. A 28-year-old male was referred for mandible deviation for 2 years. It was found that the left condyle was dislocated just below the articular eminence with the dilated capsule in magnetic resonance imaging images. After surgical dissection of the lateral pterygoid muscle, which was excessively attached to the condyle, the left condyle was reduced, and the patient's mandibular deviation was greatly improved. The pathologic results showed lateral pterygoid muscle hyaline degeneration.