Dyankova S
Department of Anatomy, Histology and Embryology, Prof. Paraskev Stoyanov Medical University of Varna, 55 Marin Drinov St, 9002, Varna, Bulgaria.
Surg Radiol Anat. 2007 Oct;29(7):551-9. doi: 10.1007/s00276-007-0236-y. Epub 2007 Jul 27.
It is well known that the lunate presents with two main types: lunate type I has one facet of its distal surface only for capitates, whereas lunate type II has two facets of the same surface for capitate and for hamate. Our previous anthropometric studies showed that the lunate type II wrists are of greater size than the lunate type I wrists. The aim of the present study was to determine whether the lunate types and the presence or absence of hamato-lunate joint correlate with anthropometric characteristics of the joint surfaces of other wrists. Sixteen sets of macerated wrists with the lunate type I and 21 with the lunate type II were studied. Two-thousand-four-hundred-and-forty-eight anthropometric measurements were done (for 68 anthropometric indicators) and 864 anthropometric indices were calculated (for 24 anthropometric indices) separately for the wrist joint surfaces. The absolute value of the anthropometric indicators of the joint surfaces of the separated wrists were greater in the wrists with the lunate type II, except for the indicators "Greatest length of the dorsal joint surface of pisiform", "Width of the proximal joint surface, measured in the middle" and "Greatest width of the proximal joint surface" for the trapezoid and "Greatest height of the ulnar joint surface" for the capitate. The enlargement of the joint surfaces for the scaphoid was mainly in proximo-distal direction. The enlargement for the triquetrum and pisiform was mainly in radio-ulnar direction. The enlargement for trapezium, trapezoid and capitate was mainly in dorso-volar direction (except for the ulnar joint surface of capitate). The enlargement for hamate was mainly in radio-ulnar and dorso-volar directions (except for the joint surfaces for capitate and triquetrum). The calculated indices illustrate the quantitative proportions of the variations mentioned above. The anthropometric differences are a good reason to make a clear distinction between both types of wrist joint complexes-with or without a hamato-lunate joint.
众所周知，月骨有两种主要类型：I型月骨其远侧面只有一个与头状骨相关的小平面，而II型月骨同一表面有两个小平面，分别与头状骨和钩骨相关。我们之前的人体测量学研究表明，II型月骨的腕关节比I型月骨的腕关节尺寸更大。本研究的目的是确定月骨类型以及钩月关节的有无是否与其他腕关节表面的人体测量学特征相关。研究了16套I型月骨的浸软腕骨和21套II型月骨的浸软腕骨。分别对腕关节表面进行了2448次人体测量（针对68个人体测量指标）并计算了864个人体测量指数（针对24个人体测量指数）。在II型月骨的腕关节中，除了豌豆骨背侧关节面最大长度、梯形骨近端关节面中间测量的宽度、近端关节面最大宽度以及头状骨尺侧关节面最大高度这些指标外，分离腕骨的关节表面人体测量指标的绝对值更大。舟骨关节面的增大主要在近远方向。三角骨和豌豆骨关节面的增大主要在桡尺方向。大多角骨、小多角骨和头状骨关节面的增大主要在背掌方向（头状骨尺侧关节面除外）。钩骨关节面的增大主要在桡尺和背掌方向（头状骨和三角骨关节面除外）。计算得到的指数说明了上述变化的定量比例。人体测量学差异是明确区分有无钩月关节这两种腕关节复合体的充分理由。
