喙锁韧带附着区域的定量解剖学研究

Coracoclavicular ligament attachment regions:a quantitative anatomic study

目的对喙锁韧带及其附着位置进行解剖测量,为解剖重建喙锁韧带治疗肩锁关节脱位提供解剖学相关数据。方法取87具成人尸体双侧肩锁关节标本,首先逐层解剖出喙锁韧带,用数显游标卡尺分别测量锥状韧带和斜方韧带在锁骨和喙突附着处的宽度和厚度,然后在韧带起止点分别切断锥状和斜方韧带,用美蓝标记韧带在锁骨和喙突表面的附着区域,最后分别测量韧带附着区域中心距锁骨、喙突各边的距离以及锁骨、喙突对应的长度和宽度。结果本研究标本的锥状和斜方韧带附着中心距锁骨远端的距离分别为(35.7±3.4)mm和(21.8±2.7)mm,此距离分别占锁骨全长的25.5%±0.9%和15.6%±1.1%。本研究标本的锥状和斜方韧带附着中心距喙突尖的距离分别为(35.1±3.2)mm和(29.7±2.9)mm,此距离分别占喙突全长的86.7%±1.9%和73.3%±2.1%。结论虽然中国人喙锁韧带在锁骨和喙突表面附着的绝对位置个体差异很大,但是其相对位置与锁骨、喙突长宽的比例是一组相对稳定的数据。

Objective To provide anatomic data of the coracoclavicular(CC)ligament attachment regions in Chinese population for anatomic reconstruction of CC ligament to treat acromioclavicular dislocation.Methods The CC ligaments were first dissected layer by layer out of the bilateral acromioclavicular joint specimens taken from 87 adult cadavers.The CC width and thickness on the attachments of the clavicle and the coracoid process were measured by an electronic digital caliper.The conoid ligament and trapezoid ligament were mapped on the surface of the clavicle and the coracoid process by transecting the ligaments close to their insertions.The distances from the ligament footprint center to the lateral,anterior and posterior margins of the clavicle were measured.The distances from the ligament footprint center to the tip,medial and lateral margin borders of the coracoid process were measured.Results The distances from the lateral edge of the clavicle to the footprint centers of the conoid and trapezoid ligaments were(35.7±3.4)mm and(21.8±2.7)mm,and the ratio of the distance divided by the clavicular length was 25.5%±0.9%and 15.6%±1.1%,respectively.The distances from the tip of coracoid to the footprint centers of the conoid and trapezoid ligaments were(35.1±3.2)mm and(29.7±2.9)mm,and the ratio of the distances divided by the coracoidal length was 86.7%±1.9%and 73.3%±2.1%,respectively.Conclusion Although the absolute position of the CC ligament attaching to the clavicle and the coracoid process varies greatly among Chinese individuals,the ratio of its relative position to the length and width of the clavicle and the coracoid process is a relatively stable set of data.