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Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects

OBJECTIVES: The aim of the current study was to evaluate potential differences in the accuracy of mandibular reconstruction and long-term stability, with respect to different reconstructive procedures. METHODS: In total, 42 patients who had undergone primary segmental mandibular resection with immed...

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Autores principales: Zeller, A. N., Neuhaus, M. T., Weissbach, L. V. M., Rana, M., Dhawan, A., Eckstein, F. M., Gellrich, N. C., Zimmerer, R. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer India 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7524954/
https://www.ncbi.nlm.nih.gov/pubmed/33071511
http://dx.doi.org/10.1007/s12663-019-01323-9
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author Zeller, A. N.
Neuhaus, M. T.
Weissbach, L. V. M.
Rana, M.
Dhawan, A.
Eckstein, F. M.
Gellrich, N. C.
Zimmerer, R. M.
author_facet Zeller, A. N.
Neuhaus, M. T.
Weissbach, L. V. M.
Rana, M.
Dhawan, A.
Eckstein, F. M.
Gellrich, N. C.
Zimmerer, R. M.
author_sort Zeller, A. N.
collection PubMed
description OBJECTIVES: The aim of the current study was to evaluate potential differences in the accuracy of mandibular reconstruction and long-term stability, with respect to different reconstructive procedures. METHODS: In total, 42 patients who had undergone primary segmental mandibular resection with immediate alloplastic reconstruction, with either manually pre-bent or patient-specific mandibular reconstruction plates (PSMRP), were included in this study. Mandibular dimensions, in terms of six clinically relevant distances (capitulum [most lateral points], capitulum [most medial points], incisura [most caudal points], mandibular foramina, coronoid process [most cranial points], dorsal tip of the mandible closest to the gonion point) determined from tomographic images, were compared prior to, and after surgery. RESULTS: Dimensional alterations were significantly more often found when conventionally bent titanium reconstruction plates were used. These occurred in the area of the coronoid process (p = 0.014). Plate fractures were significantly (p = 0.022) more often found within the manually pre-bent group than within the PSMRP group (17%/0%). CONCLUSION: The results suggest that the use of PSMRP may prevent rotation of the proximal mandibular segment, thus avoiding functional impairment. In addition, the use of PSMRP may potentially enhance the long-term stability of alloplastic reconstructions.
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spelling pubmed-75249542021-04-24 Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects Zeller, A. N. Neuhaus, M. T. Weissbach, L. V. M. Rana, M. Dhawan, A. Eckstein, F. M. Gellrich, N. C. Zimmerer, R. M. J Maxillofac Oral Surg Original Article OBJECTIVES: The aim of the current study was to evaluate potential differences in the accuracy of mandibular reconstruction and long-term stability, with respect to different reconstructive procedures. METHODS: In total, 42 patients who had undergone primary segmental mandibular resection with immediate alloplastic reconstruction, with either manually pre-bent or patient-specific mandibular reconstruction plates (PSMRP), were included in this study. Mandibular dimensions, in terms of six clinically relevant distances (capitulum [most lateral points], capitulum [most medial points], incisura [most caudal points], mandibular foramina, coronoid process [most cranial points], dorsal tip of the mandible closest to the gonion point) determined from tomographic images, were compared prior to, and after surgery. RESULTS: Dimensional alterations were significantly more often found when conventionally bent titanium reconstruction plates were used. These occurred in the area of the coronoid process (p = 0.014). Plate fractures were significantly (p = 0.022) more often found within the manually pre-bent group than within the PSMRP group (17%/0%). CONCLUSION: The results suggest that the use of PSMRP may prevent rotation of the proximal mandibular segment, thus avoiding functional impairment. In addition, the use of PSMRP may potentially enhance the long-term stability of alloplastic reconstructions. Springer India 2020-01-03 2020-12 /pmc/articles/PMC7524954/ /pubmed/33071511 http://dx.doi.org/10.1007/s12663-019-01323-9 Text en © The Author(s) 2020, corrected publication 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Article
Zeller, A. N.
Neuhaus, M. T.
Weissbach, L. V. M.
Rana, M.
Dhawan, A.
Eckstein, F. M.
Gellrich, N. C.
Zimmerer, R. M.
Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title_full Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title_fullStr Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title_full_unstemmed Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title_short Patient-Specific Mandibular Reconstruction Plates Increase Accuracy and Long-Term Stability in Immediate Alloplastic Reconstruction of Segmental Mandibular Defects
title_sort patient-specific mandibular reconstruction plates increase accuracy and long-term stability in immediate alloplastic reconstruction of segmental mandibular defects
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7524954/
https://www.ncbi.nlm.nih.gov/pubmed/33071511
http://dx.doi.org/10.1007/s12663-019-01323-9
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