Assessment and Evaluation of Glenoid Bone Loss

Abstract

The preoperative assessment of anterior glenoid bone loss is a critical step in surgical planning for patients with recurrent anterior glenohumeral instability. The structural integrity of the glenoid has been identified as one of the most important factors influencing the success of operative repair. The currently accepted gold standard for glenoid structural assessment among most orthopaedic surgeons is the use of 3-dimensional reconstructed computed tomography images with the humeral head digitally subtracted, yielding an en face sagittal oblique view of the glenoid. This view allows for evaluation of glenoid morphology and quantitative assessment of glenoid bone loss. In this article, we describe the practical application of ImageJ software (National Institutes of Health, Bethesda, MD) to quantify the amount of glenoid bone loss reported as a percentage of either total surface area or diameter. The following equations are used in this technical note for the diameter-based method and surface area method, respectively: Percent bone loss ¼ (Defect width/ Diameter of inferior glenoid circle) Â 100% and Percent bone loss ¼ (Defect surface area/Surface area of inferior glenoid circle) Â 100%.

Fatores de risco para osteólise do enxerto do coracoide após o procedimento de Latarjet aberto

“…A porcentagem de perda óssea da glenóide foi medida pelo método de área de superfície do programa Image J (National Institutes of Health, Bethesda, MA, EUA) com conceito de "círculo de melhor ajuste". [17][18][19][20] A TC pós-operatória foi feita depois de, no mínimo, 1 ano. A consolidacão, posição e reabsorção do enxerto foram avaliadas.…”

Graft Transfer Technique in Arthroscopic Posterior Glenoid Reconstruction With Distal Tibia Allograft

“… 1 , 5 , 6 , 10 In the absence of bone loss or dysplasia, bone augmentation should be avoided as capusulolabral repair has been found to more precisely restore posterior and inferior glenohumeral joint stability. 11 Methods for assessment of glenoid bone loss have been extensively investigated, 12 and the bone loss can be assessed with either MRI or computed tomographic imaging, although caution should be exhibited when using 2-dimensional imaging as the imaging gantry relative to the glenoid axis has been shown to significantly affect glenoid measurements. 13 Because of this, we use computed tomographic imaging with 3D reconstructions to calculate glenoid bone loss.…”

Algorithm for Evaluation of Bipolar Defects in Anterior Instability of the Shoulder

“…Таким образом, выполнение изолированного шва капсуло-лабрального комплекса у 11 (61,1%) из 18 пациентов нашей выборки с дефектом гленоида менее 25% сопровождалось бы высоким риском рецидивирования нестабильности вследствие заклинивания дефектов на головке и суставном отростке лопатки при отведении и наружной ротации плеча. площадь дефекта [12,29,30]. Фактически, подобный программный подход автоматически реализует метод, предложенный P. Baudi и названный в честь итальянского философа Pico della Mirandola [31].…”

“…в настоящее время отсутствует универсальная техника измерения дефектов суставного отростка лопатки, и существует множество вариантов измерений на 2D-кТ, 3D-кТ, МРТ и визуально при артроскопии [10][11][12][13][14][15][16].…”