PDF(Pubmed)
Abstract：
UNASSIGNED: To report our experience with patient specific implants for one-step orbit reconstruction following hyperostotic SWM removal and to describe the evolution of the technique through three surgical cases. Methods: Three cases of one-step SWM removal and orbit reconstruction are described. All cases are given consecutively to describe the evolution of the technique. Hyperostotic bone resection was facilitated by electromagnetic navigation and cutting guides (templates). Based on a 3D model, silicone molds were made using CAD/CAM. Then PMMA implant was fabricated from these molds. The implant was adjusted and fixed to the cranium with titanium screws after tumor removal. Results: Following steps of the procedure changed over these series: hyperostotic bone resection, implant thickness control, implant overlay features, anatomic adjustments, implant fixation. The proptosis resolved in all cases. In one patient the progressive visual acuity deterioration was recognized during the follow-up. No oculomotor disturbances and no tumor regrowth were found at the follow-up.
UNASSIGNED: CAD/CAM technologies enable creation of implants of any size and configuration, and thereby, to increase the extent of bony resection and lower the risk of tumor progression. The procedure is performed in one step which decreases the risk of postoperative morbidity.
UNASSIGNED: CAD/CAM technologies enable creation of implants of any size and configuration, and thereby, to increase the extent of bony resection and lower the risk of tumor progression. The procedure is performed in one step which decreases the risk of postoperative morbidity.
摘要：
■报告我们对患者特异性植入物进行单步眼眶重建的经验，并通过三例手术病例描述该技术的发展。方法：描述了3例一步SWM去除和眼眶重建的病例。连续给出所有情况以描述技术的发展。电磁导航和切割引导器（模板）促进了骨肥大性骨切除。基于3D模型，使用CAD/CAM制造硅胶模具。然后由这些模具制造PMMA植入物。切除肿瘤后，用钛螺钉将植入物调整并固定在颅骨上。结果：以下步骤的程序改变了这些系列：骨增生切除，植入物厚度控制，植入物重叠特征，解剖调整,植入物固定。在所有情况下都解决了突起。在随访期间，一名患者的视力逐渐下降。随访中未发现动眼神经紊乱和肿瘤再生长。
■CAD/CAM技术可以创建任何尺寸和配置的植入物，因此，增加骨切除的程度，降低肿瘤进展的风险。该程序在一个步骤中进行，从而降低了术后发病的风险。
■CAD/CAM技术可以创建任何尺寸和配置的植入物，因此，增加骨切除的程度，降低肿瘤进展的风险。该程序在一个步骤中进行，从而降低了术后发病的风险。
