Feasibility of Customised Polymethyl Methacrylate Implants Fabricated Using 3D Printed Flexible Moulds for Correction of Facial Skeletal Deformities.

Autor: Jain R; Department of Plastic, Aesthetic and Reconstructive Surgery, Medanta, The Medicity, Gurugram, India., Mahendru S, Aggarwal A, Brajesh V, Aulakh HS, Singh S, Jain A, Khazanchi RK
Jazyk: angličtina
Zdroj: The Journal of craniofacial surgery [J Craniofac Surg] 2021 Sep 01; Vol. 32 (6), pp. 1981-1985.
DOI: 10.1097/SCS.0000000000007383
Abstrakt: Introduction: Use of patient specific Polymethyl methacrylate (PMMA) implants for the reconstruction of cranial defects has become a standard practice with excellent long-term results. However, for the reconstruction of midface and mandibular osseous defects other alloplastic materials are preferred but their use is limited due to high cost. This is a report of our experience with the use of low-cost patient specific PMMA implants fabricated using 3D printed moulds in the reconstruction of osseous defects involving different areas of the facial skeleton not limited to cranium.
Methods: The 25 consecutive patients with craniofacial osseous defects who underwent reconstruction using customized PMMA implants were analyzed. All PMMA implants were fabricated intraoperatively with the use of 3D printed flexible moulds or templates.
Results: A total of 34 implants were used in 25 consecutive patients. Out of 34 implants 25 were used for midface and mandibular osseous defects. Most common etiology was post-traumatic deformity (n = 19) followed by tumor (n = 3), craniofacial anomalies (n = 2) and post-craniotomy (n = 1). One patient out of 25 (n = 1) had postoperative implant exposure. The follow-up was ranged from 3 to 19 months with an average of 12 months. The aesthetic outcome was found to be good to excellent with mean visual analogue score of 4.08.
Conclusions: Polymethyl methacrylate implants fabricated intraoperatively using 3D printed moulds provide accurate and precise reconstruction at an exceptionally low cost. PMMA has an excellent moulding property with low infection rates. As shown in our study its application may be easily extended to all areas of the craniofacial skeleton.
Competing Interests: The authors report no conflicts of interest.
(Copyright © 2021 by Mutaz B. Habal, MD.)
Databáze: MEDLINE