【摘要】 目的:探讨肩锁关节的形态学特征。方法:纳入100例接受肩部X线和CT检查且肩锁关节正常的患者，分别在过锁骨远端后沿冠状位CT片、过锁骨远端中线冠状位CT片、肩锁关节正位X线片上测量锁骨远端高度、肩峰高度、锁骨远端上沿与纵轴线成角、肩峰下沿与纵轴线成角，比较不同性别、侧别的肩锁关节形态学特征，分析不同方法测量结果的差异。结果:(1)不同性别的肩锁关节形态学特征比较。在过锁骨远端后沿冠状位CT片、过锁骨远端中线冠状位CT片、肩锁关节正位X线片上，男性锁骨远端高度、肩峰高度均大于女性[锁骨远端高度：(10.44±1.93)mm,(9.53±1.56)mm,t=2.565,P=0.012;(12.49±1.76)mm,(11.20±1.73)mm,t=3.681,P=0.000;(12.47±1.66)mm,(11.18±1.68)mm,t=3.598,P=0.000;肩峰高度：(8.51±1.49)mm,(7.28±1.57)mm,t=3.223,P=0.002;(7.26±1.49)mm,(6.37±1.24)mm,t=3.973,P=0.000;(8.47±1.38)mm,(7.25±1.48)mm,t=3.898,P=0.000];男性锁骨远端上沿与纵轴线成角、肩峰下沿与纵轴线成角与女性比较，差异均无统计学意义。(2)不同侧别的肩锁关节形态学特征比较。在过锁骨远端中线冠状位CT片、肩锁关节正位X线片上，左侧锁骨远端上沿与纵轴线成角大于右侧(90.15°±8.48°,85.75°±10.88°,t=-2.269,P=0.025;90.12°±8.39°,85.68°±10.76°,t=-2.248,P=0.031);左侧锁骨远端高度、肩峰高度、肩峰下沿与纵轴线成角与右侧比较，差异均无统计学意义。在过锁骨远端后沿冠状位CT片上，左侧锁骨远端高度、肩峰高度、锁骨远端上沿与纵轴线成角、肩峰下沿与纵轴线成角与右侧比较，差异均无统计学意义。(3)不同方法测量的肩锁关节形态学特征比较。在过锁骨远端中线冠状位CT片上测量的锁骨远端高度、肩峰高度、锁骨远端上沿与纵轴线成角、肩峰下沿与纵轴线成角，与在肩锁关节正位X线片上测量的结果比较，差异均无统计学意义。结论:男性的锁骨远端高度和肩峰高度均大于女性，左侧的锁骨远端上沿与纵轴线成角大于右侧，在过锁骨远端中线冠状位CT片和肩锁关节正位X线片上测量的肩锁关节形态学特征数据无显著差异。更多还原

【Abstract】 Objective:To explore the morphological characteristics of acromioclavicular joint.Methods:One hundred subjects with normal acromioclavicular joints who were confirmed by shoulder X-ray and CT examinations were enrolled in the study.The distal clavicle height, acromion height, angle between the superior border of distal clavicle and the longitudinal axis as well as angle between the inferior border of acromion and the longitudinal axis were measured on the coronal CT films taken at the posterior border of distal clavicle, coronal CT films taken at the midline of distal clavicle and anteroposterior X-ray films of acromioclavicular joints respectively.The morphological characteristics of the acromioclavicular joints were compared between males and females as well as between left side and right side, and the differences in results measured using different methods were analyzed.Results:(1)The distal clavicle height and acromion height were greater in males than that in females on the coronal CT films taken at the posterior border of distal clavicle, coronal CT films taken at the midline of distal clavicle and anteroposterior X-ray films of acromioclavicular joints(distal clavicle height: 10.44±1.93 vs 9.53±1.56 mm, t=2.565,P=0.012;12.49±1.76 vs 11.20±1.73 mm, t=3.681,P=0.000;12.47±1.66 vs 11.18±1.68 mm, t=3.598,P=0.000;acromion height: 8.51±1.49 vs 7.28±1.57 mm, t=3.223,P=0.002;7.26±1.49 vs 6.37±1.24 mm, t=3.973,P=0.000;8.47±1.38 vs 7.25±1.48 mm, t=3.898,P=0.000),while, the angle between the superior border of distal clavicle and the longitudinal axis as well as the angle between the inferior border of acromion and the longitudinal axis were not significantly different between males and females.(2)On the coronal CT films taken at the midline of distal clavicle and anteroposterior X-ray films of acromioclavicular joints,the angle between the superior border of distal clavicle and the longitudinal axis was greater on the left side compared to the right side( 90. 15 ± 8. 48 vs85. 75 ± 10. 88 degrees,t =-2. 269,P = 0. 025; 90. 12 ± 8. 39 vs 85. 68 ± 10. 76 degrees,t =-2. 248,P = 0. 031),while,the distal clavicle height,acromion height and the angle between the inferior border of acromion and the longitudinal axis were not significantly different between left side and right side. On the coronal CT films taken at the posterior border of the distal clavicle,the distal clavicle height,acromion height,angle between the superior border of distal clavicle and the longitudinal axis as well as angle between the inferior border of acromion and the longitudinal axis were not significantly different between left side and right side.(3)The differences in distal clavicle height,acromion height,angle between the superior border of distal clavicle and the longitudinal axis as well as angle between the inferior border of acromion and the longitudinal axis were not statistically significant between the results measured on the coronal CT films taken at the midline of distal clavicle and the ones measured on anteroposterior X-ray films of acromioclavicular joints. Conclusion: The distal clavicle height and acromion height are greater in males than that in females,and the angle between the superior border of distal clavicle and the longitudinal axis is greater on the left side compared to the right side,furthermore,there are no statistical differences in the data of morphological characteristics of acromioclavicular joints between the results measured on the coronal CT films taken at the midline of distal clavicle and the ones measured on anteroposterior X-ray films of acromioclavicular joints.更多还原