Wermers Jens, Raschke Michael J, Wilken Marcel, Riegel Arne, Katthagen J Christoph
Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Münster, 48149 Münster, Germany.
Department of Engineering Physics, University of Applied Sciences Münster, 48565 Steinfurt, Germany.
J Clin Med. 2021 Sep 22;10(19):4316. doi: 10.3390/jcm10194316.
Glenoid concavity is a crucial factor for glenohumeral stability. However, the distribution of this stability-related parameter has not been focused on in anatomical studies. In this retrospective study, computed tomography (CT) data and tactile measurements of = 27 human cadaveric glenoids were analyzed with respect to concavity. For this purpose, the bony and osteochondral shoulder stability ratio (BSSR/OSSR) were determined based on the radius and depth of the glenoid shape in eight directions. Various statistical tests were performed for the comparison of directional concavity and analysis of the relationship between superoinferior and anteroposterior concavity. The results proved that glenoid concavity is the least distinctive in anterior, posterior, and anterosuperior direction but increases significantly toward the superior, anteroinferior, and posteroinferior glenoid. The OSSR showed significantly higher concavity than the BSSR for most of the directions considered. Moreover, the anteroposterior concavity is linearly correlated with superoinferior concavity. The nonuniform distribution of concavity indicates directions with higher stability provided by the anatomy. The linear relationship between anteroposterior and superoinferior concavity may motivate future research using magnetic resonance imaging (MRI) data to optimize clinical decision-making toward more personalized treatment of glenoid bone loss.
关节盂凹陷是盂肱关节稳定性的关键因素。然而，在解剖学研究中，尚未关注这一与稳定性相关参数的分布情况。在这项回顾性研究中，对27例人类尸体关节盂的计算机断层扫描（CT）数据和触觉测量结果进行了凹陷方面的分析。为此，基于关节盂在八个方向上的半径和深度，确定了骨性和骨软骨性肩部稳定性比率（BSSR/OSSR）。进行了各种统计测试，以比较方向凹陷情况，并分析上下凹陷与前后凹陷之间的关系。结果证明，关节盂凹陷在前方、后方和前上方方向最不明显，但朝着关节盂的上方、前下方和后下方方向显著增加。在所考虑的大多数方向上，OSSR的凹陷程度明显高于BSSR。此外，前后凹陷与上下凹陷呈线性相关。凹陷的不均匀分布表明了解剖结构提供更高稳定性的方向。前后凹陷与上下凹陷之间的线性关系可能会推动未来利用磁共振成像（MRI）数据进行研究，以优化针对关节盂骨质流失更个性化治疗的临床决策。
