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. 2020 Mar;78(3):372.e1-372.e7.
doi: 10.1016/j.joms.2019.10.005. Epub 2019 Oct 15.

Computer-Guided Arthrocentesis Using Patient-Specific Guides: A Novel Protocol for Treatment of Internal Derangement of the Temporomandibular Joint

Kareem Mahmoud  1 , Nadia Galal  2 , Sherif Ali  3 , Amr Gibaly  4 , Mohamed S Elbehairy  5 , Mohamed Mounir  6
Affiliations

Computer-Guided Arthrocentesis Using Patient-Specific Guides: A Novel Protocol for Treatment of Internal Derangement of the Temporomandibular Joint

Kareem Mahmoud et al. J Oral Maxillofac Surg. 2020 Mar.

Abstract

Purpose: The aim of the present study was to evaluate the accuracy of 3-dimensionally (3D) printed patient-specific guides (PSGs) to direct the passage of inlet and outlet needles into the superior joint spaces of the temporomandibular joint (TMJ) in preparation for arthrocentesis.

Patients and methods: The present study included 10 patients with 14 TMJs with anterior disc displacement with reduction. A 3D PSG was designed for each patient to lead the inlet and outlet needles into the superior joint space of the TMJ. The PSGs were implemented, and their accuracy for guiding the needles into the superior joint space was assessed.

Results: Both arthroscopic verification and clinical evaluation revealed that direct access to all the predetermined anatomic locations inside the TMJs had been obtained, except for 1 case, during which the patient had failed to maintain the maximum mouth opening during computed tomography scanning.

Conclusions: The virtual computer-initiated PSGs were beneficial for directing the passage of the needles into the superior joint space.

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