Temporomandibular joint total replacement using Biomet ®prostheses: a prospective study

Introduction: Many of temporomandibular joint disorders patients are managed with non-surgical therapies, but some patients require surgical TMJ repair or reconstruction. Reconstruction is indicated when the joint is severely damaged. Total TMJ reconstruction is performed using several models of alloplastic implants.

The aim of this study was to present our experience of total TMJ reconstruction using Biomet ® prosthesis.

Material and methods: All diagnoses were established with clinical and MRI and 3D-CT-scan data. Preoperative stereolithographic models were built in all cases. We used Biomet microfixation (Jacksonville, FL, USA) devices. The Biomet ® total TMJ prosthesis can be used as a stock product or an individually designed prosthesis. In case of stock product there are fixed sizes and shapes. The surgical approach was through one preauricular incision, and one retromandibular incision. The patients did not require any postoperative IMF. They were allowed to function immediately, with freedom to choose any diet. Jaw-opening exercises were instituted immediately after surgery. Patients were regularly followed-up.

Results: There are 3 women and 2 men. Nine total TMJ prostheses have been inserted between 2009 and 2011. Four patients had unilateral procedures and one had a bilateral procedure. The follow-up ranged between 12 and 24 months. At the end of the study the mean jaw-opening capacity was 38.5 mm for patient with ankylosis. Joint related pain and interference with eating were eliminated. There was no postoperative complication.

Conclusion: Total TMJ reconstruction seems to be a reliability procedure and must be taken in consideration in patient with severe damage of TMJ.

Conflict of interest: None declared.

Only gold members can continue reading. Log In or Register to continue

Feb 5, 2018 | Posted by in Oral and Maxillofacial Surgery | Comments Off on Temporomandibular joint total replacement using Biomet ®prostheses: a prospective study
Premium Wordpress Themes by UFO Themes