Ahmad Ahmad Fayez, Yacoub Hekmat, Khalil Ali
From the Oral and Maxillofacial Surgery Department, Tishreen Hospital, Lattakia, Syria.
Plast Reconstr Surg Glob Open. 2024 Aug 6;12(8):e6029. doi: 10.1097/GOX.0000000000006029. eCollection 2024 Aug.
Patient-specific implants (PSIs) have been presented as an effective solution for diseases that require reconstruction. PSIs are designed to precisely fit anatomical defects or deformities in terms of shape and size. In addition to the possibility of predicting the results of surgery regarding soft tissue changes.
A research sample consisting of 10 patients with facial deformities underwent maxillofacial reconstructive surgery between 2020 and 2021 in the Tishreen University Hospital, Syria. All patients underwent computed tomography scans; then, the design of the required facial implant was carried out, and the three-dimensional soft tissues were reconstructed using the ExoCad 3.0 program based on the computed tomography. The final form of the facial implant was printed from polyether ether ketone, and then surgical work was performed. The patients were followed up after 6 months. Then, a comparison was made between the virtual design and the real result.
The absolute difference between the expected soft tissue changes result and the actual result did not exceed three-tenths for all patients, and only two of 10 patients had measurements higher than 20%.
This technique can be relied upon with the placement of implants to predict the outcome of the surgical procedure in terms of morphological changes in the facial soft tissues covering PSI polyether ether ketone. Therefore, it is possible to make a virtual design based on the cosmetic requirements of the patient.
定制植入物（PSIs）已被视为治疗需要重建疾病的有效解决方案。PSIs在形状和尺寸方面被设计为精确适配解剖学缺陷或畸形。此外，还有可能预测手术在软组织变化方面的结果。
一个由10名面部畸形患者组成的研究样本于2020年至2021年期间在叙利亚的提什林大学医院接受了颌面重建手术。所有患者均接受了计算机断层扫描；然后，进行所需面部植入物的设计，并基于计算机断层扫描使用ExoCad 3.0程序重建三维软组织。面部植入物的最终形态由聚醚醚酮打印而成，随后进行手术操作。术后6个月对患者进行随访。然后，对虚拟设计与实际结果进行比较。
所有患者预期的软组织变化结果与实际结果之间的绝对差异不超过十分之三，10名患者中只有两名患者的测量值高于20%。
在植入物放置过程中，可以依靠该技术根据覆盖PSI聚醚醚酮的面部软组织的形态变化来预测手术结果。因此，有可能根据患者的美容需求进行虚拟设计。
