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首页> 外文期刊>Cancer Management and Research >The Personalized Shoulder Reconstruction Assisted by 3D Printing Technology After Resection of the Proximal Humerus Tumours
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The Personalized Shoulder Reconstruction Assisted by 3D Printing Technology After Resection of the Proximal Humerus Tumours

机译：在切除肱骨肱骨肿瘤后3D打印技术辅助的个性化肩部重建

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Background: The reverse shoulder arthroplasty (RSA) may be a promising alternative for proximal humerus tumours because of good postoperative shoulder function. However, the conventional reverse shoulder prosthesis can not meet individual needs and RSA has been associated with a relatively high complication rate. Therefore, implant design and surgical reconstruction technique warrant further study. Methods: Between September 2015 and May 2018, 7 patients were treated via RSA after en-bloc resection of the proximal humerus tumours. A 3D-printed guiding baseplate was used to assist the implant of the 3D-printed glenoid prosthesis; a personalized humerus prosthesis was used to reconstruct the proximal humerus. The functional outcomes were assessed by range of motion (ROM) of the shoulder joint, Musculoskeletal Tumour Society (MSTS) functional score, and Toronto Extremity Salvage Score (TESS). We also analyzed tumour recurrence, metastases, and complications associated with the reconstruction procedure. Results: All patients were observed for 14 to 36 months, with an average of 23.6 months. At the final follow-up, the mean MSTS score was 85.7% (range, 73.3–93.3%), and the mean TESS score was 90.0% (range, 84.1–95.9%). No instability, infection, scapular notching, loosening or fracture were observed in this series. One patient with GCT suffered from pulmonary metastasis, while one with osteosarcoma died because of pulmonary metastasis. Conclusion: The 3D-printed guiding baseplate facilitated the accurate implantation of the glenoid prosthesis. The RSA based on a 3D-printed glenoid prosthesis and a personalized custom-made humerus prosthesis significantly improved the shoulder function and decreased the complication rate. Further studies of a larger scale with longer follow-up are required to validate this technology.
机译：背景：反向肩部关节置换术（RSA）可能是近端肱骨肿瘤的有希望的替代品，因为术后肩部功能良好。然而，传统的反向肩假体不能满足各个需要，RSA已经与相对高的并发症率相关联。因此，植入式设计和外科重建技术令需要进一步研究。方法：2015年9月至2018年5月，7例患者通过RSA治疗疏远肱骨肿瘤的分解后。 3D印刷引导底板用于帮助植入3D印刷的关节盂假体;个性化的肱骨假体用于重建近端肱骨。通过肩关节，肌肉骨骼肿瘤肿瘤会（MSTS）功能得分的运动范围（ROM）进行函数结果，并对多伦多抢救得分（TESS）进行评估。我们还分析了与重建程序相关的肿瘤复发，转移和并发症。结果：观察所有患者的所有患者14至36个月，平均为23.6个月。在最后的后续后，平均MSTS得分为85.7％（范围，73.3-93.3％），平均苔丝得分为90.0％（范围，84.1-95.9％）。在该系列中观察到没有不稳定性，感染，肩胛骨切口，松动或骨折。一名患有GCT的患者患有肺转移，而患有骨肉瘤的患者因肺转移而死亡。结论：3D印刷引导底板促进了关节盂假体的准确植入。基于3D印刷的关节盂假体和个性化定制的肱骨假体的RSA显着改善了肩部功能并降低了并发症率。进一步研究更长的尺度，需要更长的随访来验证这项技术。

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