目的:展示患者特异性植入物(PSIs)在面部显著骨骼缺损重建中的应用。聚酰胺12植入物用于实现良好的对称结果,具有较大的投影和轮廓以及最小的发病率,所有这些都不可能用其他重建方案实现。
方法:采用回顾性研究设计,三名患者有明显的面部骨骼缺陷,影响了合子腋窝复合体,使用额骨和也具有眼眶成分的受试者。本文报告的病例在2015年6月至2016年5月期间进行了管理,对所有3例病例进行了至少5年的随访。通过将术后X射线与虚拟计划重叠以及在临床上使用虚拟模拟量表(VAS)来评估结果。
结果:对于三名患者,患者满意度的VAS评估取得了有希望的结果,第一例报告为8例,其中10例最满意。第二个病人,VAS为7.5,第三例患者为8.5.射线照相,所有四个点的横向投影差异不超过2.48毫米。在评估前后投影精度时,在眶下边缘的平均偏差为0.68mm,在the骨额叶点的平均偏差为0.86mm.
结论:本文旨在指出使用聚酰胺12PSIs进行有关对称性的主要面部骨骼重建的显着优势,解剖轮廓,发病率最低,成本降低。未来的研究需要更多的患者。
OBJECTIVE: To demonstrate use of patient specific implants (PSIs) in the reconstruction of significant facial skeletal defects. Polyamide 12 implants were used to achieve good symmetric results with great projection and contours and minimal morbidity, all of which would not be predictably achievable with other reconstructive options.
METHODS: Using a retrospective study design, three patients who had significant facial skeletal defects affecting the zygomaticomaxillary complex, frontal bone and also having an orbital component were used as subjects. The cases reported in this article were managed during the period from June 2015 to May 2016 with a minimum of 5 years follow up for all three cases. Outcomes were evaluated radiographically by overlapping postoperative x-rays with the virtual plan and also clinically using a virtual analogue scale (VAS).
RESULTS: For the three patients, VAS assessment for patient satisfaction yielded promising results with the first case reporting an 8, with 10 being most satisfied. For the second patient, the VAS was 7.5 and for the third patient it was 8.5. Radiographically, the difference in transverse projection on all four points did not exceed 2.48 mm. When assessing antero-posterior projection accuracy, there was an average deviation of 0.68 mm at the infraorbital rim and 0.86 mm at the zygomaticofrontal point.
CONCLUSIONS: This article aims to point out the significant advantages of the use of polyamide 12 PSIs for the major facial skeletal reconstructions regarding symmetry, anatomical contours, minimal morbidity and decreased costs. A larger number of patients is needed in future studies.