Lotan Raphael, Sakhnini Mojahed, Oran Ariel, Hershkovich Oded
Department of Orthopedic Surgery, Wolfson Medical Center, Sackler School of Medicine, Tel Aviv 5265601, Israel.
Department of Orthopedic Surgery, Sheba Medical Center, Sackler School of Medicine, Tel Aviv 5262000, Israel.
J Clin Med. 2023 Nov 25;12(23):7307. doi: 10.3390/jcm12237307.
The shoulder rotator cuff (RC) is crucial to shoulder function and involvement in shoulder pathology. RC tears have been extensively studied, and several classifications have been devised to quantify their magnitude. Various RC measurement techniques were introduced previously, utilizing cadaveric specimens, X-rays, CT scans, and MRI with different results published regarding humeral heads' different plane diameters and the correlation to age, gender, and height. There are very few studies measuring RC length in the general population.
We aimed to assess the geometrical relation between rotator cuff tendon length and humeral head sagittal and axial diameters.
A total of 100 shoulder MRI scans of labral tear-suspected patients were reviewed, and the geometrical parameters of the rotator cuff length and proximal humerus sagittal and axial diameters were measured.
The healthy population has wide variability in humeral diameter and rotator cuff length. We found a high correlation between humeral head sagittal and axial plane diameters and the rotator cuff tendon dimension. The orthogonal plane diameters disagree with the humeral head being round but rather spheric. The rotator cuff length changes according to the patient's gender and height.
This is a novel method for rotator cuff measurement, description, and classification according to the percentage of tear instead of length (cm). This method is more clinically oriented and relevant than most other previous methods.
肩袖（RC）对肩部功能至关重要，且与肩部病理状况相关。肩袖撕裂已得到广泛研究，并且已设计出多种分类方法来量化其严重程度。先前已引入各种肩袖测量技术，利用尸体标本、X射线、CT扫描和MRI，关于肱骨头不同平面直径以及与年龄、性别和身高的相关性，已发表了不同的结果。在普通人群中测量肩袖长度的研究非常少。
我们旨在评估肩袖肌腱长度与肱骨头矢状径和轴向径之间的几何关系。
回顾了总共100例疑似盂唇撕裂患者的肩部MRI扫描图像，并测量了肩袖长度以及肱骨近端矢状径和轴向径的几何参数。
健康人群的肱骨直径和肩袖长度存在很大差异。我们发现肱骨头矢状径和轴向径与肩袖肌腱尺寸之间存在高度相关性。正交平面直径与肱骨头呈圆形不符，而是呈球形。肩袖长度根据患者的性别和身高而变化。
这是一种根据撕裂百分比而非长度（厘米）对肩袖进行测量、描述和分类的新方法。该方法比大多数先前的方法更具临床导向性和相关性。
