Jazwiecka-Koscielniak Ewa, Kozakiewicz Marcin
Department of Maxillofacial Surgery (Head: Marcin Kozakiewicz), Medical University of Lodz, ul. Zeromskiego 113, 90-549 Lodz, Poland.
J Craniomaxillofac Surg. 2014 Oct;42(7):1520-9. doi: 10.1016/j.jcms.2014.04.024. Epub 2014 May 16.
Orbital reconstruction makes higher demands on symmetry and axial precision than other parts of the skull, because the position of the eye globe determines proper vision. The aim of this study is to evaluate titanium surface marking of polymers (UHMW-PE and PA6) to check implants position in CT examination and clinical application of such modified individual implant. One hundred and twenty-four polymer blocks were prepared. New method of ultrasounds welding to connect the titanium markers to the polymer surface was developed and tested. Titanium marked polymer blocks were examined by CT to evaluate the quality of the cover. Then, two modified UHMW-PE individual implants were applied clinically and implant position was checked by CT. The biggest titanium cover was in PA6 [25 ± 18% of processed surface] and for UHMW-PE [19 ± 12%] without significance [p = 0.14]. Both covers were visible in CT. Clinical application revealed proper reconstruction, uneventful post-operational outcome and well visible surface of the implants in CT. The conducted tests make it possible to determine the suitability of ultrasonic technology for the deposition of titanium markers in polymer. The clinical use of modified individual implants allows to confirm the correct position of the implants because they are accurate visible in CT.
与颅骨的其他部位相比，眼眶重建对对称性和轴向精度的要求更高，因为眼球的位置决定了正常视力。本研究的目的是评估聚合物（超高分子量聚乙烯和聚酰胺6）的钛表面标记，以在CT检查中检查植入物的位置，并评估这种改良的个体化植入物的临床应用。制备了124个聚合物块。开发并测试了将钛标记物连接到聚合物表面的超声焊接新方法。通过CT检查钛标记的聚合物块，以评估覆盖质量。然后，临床上应用了两个改良的超高分子量聚乙烯个体化植入物，并通过CT检查植入物位置。聚酰胺6的最大钛覆盖面积为[加工表面的25±18%]，超高分子量聚乙烯为[19±12%]，无显著性差异[p = 0.14]。两种覆盖物在CT中均可见。临床应用显示重建效果良好，术后过程平稳，且植入物在CT中的表面清晰可见。所进行的测试使得确定超声技术在聚合物中沉积钛标记物的适用性成为可能。改良个体化植入物的临床应用能够确认植入物的正确位置，因为它们在CT中清晰可见。
