Wataru Sahara, Kazuomi Sugamoto, Yoshikazu Nakajima, Hiroaki Inui, Takaharu Yamazaki, Hideki Yoshikawa
Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita 565-0871, Japan.
Acta Orthop. 2005 Jun;76(3):392-6.
Anatomy of the humeral head may be of importance for the kinematics of the shoulder joint. We therefore evaluated the three-dimensional morphology of humeral heads.
We performed three-dimensional morphological analysis of the articular surfaces of 14 humeral heads in the proximal humeri of 7 cadavers. The articular surface was divided into 9 portions, which were in turn equally divided into 3 sections by an angle in supero-inferior and antero-posterior directions. Each portion of the articular surface was fitted to a sphere, and we calculated the radius of the curvature of each portion.
The mean radius of the superior portion was significantly greater than that of the central portion, and the mean radii of the anterior and posterior portions were significantly less than that of the central portion.
Our findings lead us to believe that the morphology of the humeral head is of importance for the kinematics of the shoulder joint.
肱骨头的解剖结构可能对肩关节的运动学具有重要意义。因此,我们评估了肱骨头的三维形态。
我们对7具尸体近端肱骨中的14个肱骨头的关节面进行了三维形态分析。关节面被分为9个部分,这些部分又通过上下方向和前后方向的角度平均分为3个区域。关节面的每个部分都拟合到一个球体上,我们计算了每个部分的曲率半径。
上部的平均半径显著大于中部,前部和后部的平均半径显著小于中部。
我们的研究结果使我们相信肱骨头的形态对肩关节的运动学具有重要意义。