The in-house designed patient-specific implants combined with navigation systems in orthognathic surgery: a case series of three patients.

IF 1.4 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of the Korean Association of Oral and Maxillofacial Surgeons Pub Date : 2025-08-31 DOI:10.5125/jkaoms.2025.51.4.237

Warutta Kasemsarn, Tanutchaporn Thongngam

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引用次数: 0

Abstract

Objectives: This case series aims to describe the virtual surgical planning process and report the surgical outcomes of in-house-designed patientspecific implants (PSIs) combined with navigation systems in orthognathic surgery.

Patients and methods: Three patients undergoing two-jaw surgery were assessed across pre-surgical planning, surgical execution, and post-surgical evaluation phases. The accuracy was evaluated between the surgical plan (T0) and immediate post-operative three-dimensional (3D) radiographic image (T1) using 2 methods: bone surface comparison and dental landmark comparison. The stability was assessed between T1 and 3D radiographic image at 9 months after surgery (T2) by Bone surface comparison method.

Results: The accuracy assessed by Bone surface comparison shows that green areas (deviation between 0.0-0.4 mm) were mostly observed in the anterior region of the Le Fort I segment. The average deviations of dental landmark comparison are as follows: in the left-right direction, 0.28±0.41 to the right; in the anterior-posterior direction, 0.13±0.48 to the posterior; and in the superior-inferior direction, 0.37±0.39 to the inferior. The stability assessed by bone surface comparison shows the green area in two of three patients, indicating minimal post-surgical changes.

Conclusion: The in-house-designed PSIs combined with navigation systems can achieve accuracy and stability in orthognathic surgery.

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内部设计的患者专用植入物结合导航系统用于正颌手术：三个患者的病例系列。

目的：本病例系列旨在描述虚拟手术计划过程，并报告在正颌手术中自行设计的患者专用植入物（psi）结合导航系统的手术结果。患者和方法：对3例接受双颌手术的患者进行术前计划、手术执行和术后评估。采用骨面对比和牙标对比两种方法对手术方案（T0）与术后即刻三维（3D） x线图像（T1）的准确性进行评价。术后9个月（T2）通过骨表面比比法评估T1和3D x线图像的稳定性。结果：骨面比对准确性评估显示，Le Fort I节段前区绿色区域（偏差在0.0-0.4 mm之间）居多。牙标比较的平均偏差为：左右方向，向右0.28±0.41；前后方向，后向0.13±0.48；上下方向为0.37±0.39。通过骨表面比较评估的稳定性显示，三名患者中有两名出现绿色区域，表明术后变化最小。结论：自主设计的psi与导航系统相结合，可以达到正颌手术的准确性和稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Korean Association of Oral and Maxillofacial Surgeons DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.00

自引率

10.00%

发文量

期刊介绍： Journal of the Korean Association of Oral and Maxillofacial Surgeons (J Korean Assoc Oral Maxillofac Surg) is the official journal of the Korean Association of Oral and Maxillofacial Surgeons. This bimonthly journal offers high-quality original articles, case series study, case reports, collective or current reviews, technical notes, brief communications or correspondences, and others related to regenerative medicine, dentoalveolar surgery, dental implant surgery, head and neck cancer, aesthetic facial surgery/orthognathic surgery, facial injuries, temporomandibular joint disorders, orofacial disease, and oral pathology. J Korean Assoc Oral Maxillofac Surg is of interest to oral and maxillofacial surgeons and dental practitioners as well as others who are interested in these fields.