How common is the extended temporomandibular joint replacement (eTMJR)? Output data from a single global producer
Zakai, Daanesh Higginson, Jim Elledge, Ross Mercuri, Louis G Speculand, Bernie
Zakai, Daanesh
Higginson, Jim
Elledge, Ross
Mercuri, Louis G
Speculand, Bernie
Affiliation
University Hospitals Birmingham NHS Foundation Trust; Rush University Medical Center; University of Illinois Chicago; Circle Health The Priory Hospital; Imperial College London
Other Contributors
Publication date
2025-04-21
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Collections
Research Projects
Organizational Units
Journal Issue
Abstract
This cohort study focuses on establishing volumes and subclassifications of extended temporomandibular joint replacement (eTMJR) prostheses that are presently being produced compared to the production of standard TMJR devices. The reports of the use of eTMJR devices in the management of large segmental mandibular defects that also involve the temporomandibular joint (TMJ) are increasing in the literature. Data received from Stryker/TMJ Concepts reveals that eTMJR prostheses account for 13.5% of TMJR devices produced. The literature reports eTMJR adverse event issues such as infection, mechanical failures, and heterotopic bone formation. The aim of this study is to provide insights into the use of eTMJR prostheses to guide clinicians and researchers in advancing their use as a management option for complex mandibular reconstructions. Future research directions, focusing on the elements of device embodiments (materials, design, manufacturing), regenerative medicine, and predictive tools to enhance eTMJR longevity and success, are discussed.
Citation
Zakai D, Higginson J, Elledge R, Mercuri LG, Speculand B. How common is the extended temporomandibular joint replacement (eTMJR)? Output data from a single global producer. Br J Oral Maxillofac Surg. 2025 Apr 21:S0266-4356(25)00104-4. doi: 10.1016/j.bjoms.2025.03.014. Epub ahead of print.
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Article