Olafsdottir Asta, Majed Addie, Butt David, Falworth Mark, Clarkson Matthew J, Thompson Stephen
Wellcome/EPSRC Centre for Interventional and Surgical Science, University College London, United Kingdom.
The Royal National Orthopaedic Hospital NHS Trust.
Proc SPIE Int Soc Opt Eng. 2022 Apr 4;12034:120341S. doi: 10.1117/12.2608597.
Correct understanding of the geometry of the glenoid (the socket of the shoulder joint) is key to successful planning of shoulder replacement surgery. This surgery typically involves placing an implant in the shoulder joint to restore joint function. The most relevant geometry is the glenoid version, which is the angular orientation of the glenoid surface relative to the long axis of the scapula in the axial plane. However, measuring the glenoid version is not straightforward and there are multiple measurement methods in the literature and used in commercial planning software. In this paper we introduce SciKit-SurgeryGlenoid, an open source toolkit for the measurement of glenoid version. SciKit-SurgeryGlenoid contains implementations of the 4 most frequently used glenoid version measurement algorithms enabling easy and unbiased comparison of the different techniques. We present the results of using the software on 10 sets of pre-operative CT scans taken from patients who have subsequently undergone shoulder replacement surgery. We further compare these results with those obtained from a commercial implant planning software. SciKit-SurgeryGlenoid currently requires manual segmentation of the relevant anatomical features for each method. Future work will look at automating the segmentation process to build an automatic and repeatable pipeline from CT or radiograph to quantitative glenoid version measurement.
正确理解肩胛盂（肩关节的关节窝）的几何形状是成功规划肩关节置换手术的关键。这种手术通常包括在肩关节中植入假体以恢复关节功能。最相关的几何形状是肩胛盂版本，它是肩胛盂表面在轴向平面上相对于肩胛骨长轴的角度方向。然而，测量肩胛盂版本并非易事，文献中有多种测量方法，并且商业规划软件中也在使用。在本文中，我们介绍了SciKit-SurgeryGlenoid，这是一个用于测量肩胛盂版本的开源工具包。SciKit-SurgeryGlenoid包含4种最常用的肩胛盂版本测量算法的实现，能够轻松且无偏差地比较不同技术。我们展示了在10组来自随后接受肩关节置换手术患者的术前CT扫描上使用该软件的结果。我们进一步将这些结果与从商业植入物规划软件获得的结果进行比较。SciKit-SurgeryGlenoid目前需要针对每种方法手动分割相关解剖特征。未来的工作将着眼于自动化分割过程，以构建从CT或X光片到定量肩胛盂版本测量的自动且可重复的流程。
