正常肱骨之下端扁而宽,向前卷曲,与肱骨干成一向前倾斜的角度。通常临床放射学在肘关节侧位像上,画肱骨骨干轴线与肱骨小头中心线,二线下方夹角称“肱骨小头前倾角刀,正常25°～45°,用以表示肱骨下端前倾的程度。伸展型或屈曲型髁上骨折,可使角度减小或加大。形态学描述肱骨下端前倾程度的方法,迄今尚未见有报告。为积累国人形态学方面的资料,本文采用太原地区出土的成年干燥肱骨标本,逐 The lower end of the normal humerus flat and wide, curled forward, and the humerus into a forward tilt angle. Usually clinical radiology in the elbow lateral image, draw the humeral shaft axis and humeral head centerline, the second line under the angle that the ”humeral head anteversion knife, normal 25 ° ~ 45 °, used to indicate the lower extremity of the humerus The degree of tilt .Extended or flexion supracondylar fracture, can make the angle decrease or increase.Morphology describes the lower humeral anterior tilt degree method, so far no report.For the accumulation of Chinese morphological information, this article uses Taiyuan area unearthed adult dry humerus specimens, by