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骨头改造在测量定制植入物的迁移中的作用,用于大型骨缺陷

Sara De Angelis¹, Anna Di Laura^1,2, Angelika Ramesh¹

¹Institute of Mechanical Engineering, University College London, London, UK.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society

|February 26, 2024

概括

修订关节整形手术显示,植入物运动和骨重塑在骨重建后发生的情况类似. 这些生理变化应在帕普洛斯基型IIIB缺陷患者的植入物监测期间考虑.

科学领域:

整形外科手术整形外科手术
生物医学工程生物医学工程
放射学放射学是一门学科.

背景情况:

在修复全关节整形术中实现强大的固定是具有挑战性的,随着时间的推移,可能会导致植入物运动和骨重塑.
由于机械负荷,植入物迁移的准确测量是复杂的,因为植入物周围的骨变化是由于机械负荷而导致的.

研究的目的:

用定制的3D打印杯子量化骨形状和植入物位置的变化,在一次acetabular重建后一年,在患有帕普洛斯基型IIIB缺陷的患者.

主要方法:

对23名患者进行的观察后期队列研究.
术后计算机断层扫描 (1周内和1年后) 的同时注册,使用骨到骨和植入物到植入物策略.
使用三种联合注册方法分析植入物位置和双侧无名骨形状变化.

主要成果:

植入物位置变化的中位心离距离为2.3毫米 (IQR:1.73.7毫米).
两侧无名骨形状变化的中位心离距离为2.4毫米 (IQR:1.63.6毫米).
结合骨形状和植入物位置的变化,测量3.7毫米 (IQR:3.54.6毫米).

结论:

植入物运动和周围假肢骨头的重塑是生理性的,并且在骨重建后以相似的程度发生.
这些发现需要外科医生和工程师在接受修复关节整形手术的患者的植入物监测协议中考虑.

关键词:

帕普洛斯基IIIB缺陷是一个缺陷.形骨缺陷形骨缺陷生物机械骨头改造生物机械骨头改造定制植入物的定制植入物植入物迁移植入物迁移植入物迁移

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