Mangasah Holong, Aminata Iman Widya
Department of Orthopaedics and Traumatology, Fatmawati General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.
J Orthop. 2023 Feb 9;37:27-33. doi: 10.1016/j.jor.2023.02.002. eCollection 2023 Mar.
Understanding glenoid morphometry is important in shoulder prosthetic replacement surgery. In total and reverse shoulder arthroplasty, the size of the implants has to be determined according to the morphometry of the shoulder. However, there has been no known data on glenoid morphometry in the Indonesian population.
Seventy-four computed tomography scans of asymptomatic shoulders were obtained from the medical databases of a third referral hospital in Jakarta. Mimics Research 21.0 was used to reconstruct 3D models of the scapula from the DICOM files. The morphometry parameters included were glenoid fossa height (GFH), maximum glenoid fossa width (MGW), glenoid width at center of the glenoid fossa (CGW), vertical distance between maximum width and center (VDMC), glenoid version angle (GVA), glenoid inclination (GI), glenopolar angle (GPA), glenoid vault depth (GVD), coracoid length (CL), coracoid midpoint length (CML), coracoid tip height (CTH) and width (CTW), and coracoid midpoint height (CMH) and width (CMW).
Our study found the average Indonesian GFH was 30.24 mm, the MGW was 24.03 mm, the CGW was 22.46 mm, the VDMC was 3.67 mm, the GPA was 42.76°, the GVD 18.8 mm, the GVA was 2.39° retroverted, the GI was 3.15° superiorly inclined, the CL was 37.76 mm, the CML was 18.89 mm, the CTW was 13.31 mm, the CTH was 8.52 mm, the CMW was 14.21 mm, and the CMH was 10.46 mm. All parameters except VDMC, GVA, and GI showed significant differences between male and female subjects Meanwhile, there was no significant difference in dimension and orientation of the glenoid and coracoid between the right and left shoulder.
Our study showed a lower value of MGW, GFH, and GVD compared to other Asian ethnicities. These results may be helpful in designing smaller prostheses suitable for Indonesian glenoids.
了解肩胛盂形态测量学在肩关节置换手术中很重要。在全肩关节置换术和反肩关节置换术中，植入物的尺寸必须根据肩部的形态测量学来确定。然而，关于印度尼西亚人群肩胛盂形态测量学尚无已知数据。
从雅加达一家三级转诊医院的医学数据库中获取74例无症状肩部的计算机断层扫描图像。使用Mimics Research 21.0从DICOM文件重建肩胛骨的三维模型。纳入的形态测量参数包括肩胛盂窝高度（GFH）、肩胛盂窝最大宽度（MGW）、肩胛盂窝中心处的肩胛盂宽度（CGW）、最大宽度与中心之间的垂直距离（VDMC）、肩胛盂扭转角（GVA）、肩胛盂倾斜度（GI）、肩胛盂极角（GPA）、肩胛盂穹窿深度（GVD）、喙突长度（CL）、喙突中点长度（CML）、喙突尖高度（CTH）和宽度（CTW），以及喙突中点高度（CMH）和宽度（CMW）。
我们的研究发现，印度尼西亚人的平均GFH为30.24毫米，MGW为24.03毫米，CGW为22.46毫米，VDMC为3.67毫米，GPA为42.76°，GVD为18.8毫米，GVA为后倾2.39°，GI为上倾3.15°，CL为37.76毫米，CML为18.89毫米，CTW为13.31毫米，CTH为8.52毫米，CMW为14.21毫米，CMH为10.46毫米。除VDMC、GVA和GI外，所有参数在男性和女性受试者之间均存在显著差异。同时，左右肩部的肩胛盂和喙突在尺寸和方向上无显著差异。
我们的研究表明，与其他亚洲种族相比，印度尼西亚人的MGW、GFH和GVD值较低。这些结果可能有助于设计适合印度尼西亚肩胛盂的较小假体。
