Department of Plastic, Reconstructive and Hand Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands.
Department of Plastic, Reconstructive and Hand Surgery, Martini Hospital, Groningen, the Netherlands.
J Biomech. 2022 Jun;139:110870. doi: 10.1016/j.jbiomech.2021.110870. Epub 2021 Nov 20.
Wrist pathology is often diagnosed by using the contralateral wrist as a comparison of baseline motion and strength. However, recent range of motion studies suggest that females have different carpal motion patterns compared to males and that the dominant carpal bones have different motion patterns. The purpose of this study is to evaluate the effect of sex and hand dominance on in vivo kinematics of the scaphoid, lunate and capitate using four-dimensional computed tomography (4D-CT) analysis in healthy uninjured volunteers. In this prospective study, both wrist of 20 uninjured Caucasian volunteers (11 men and 9 women) were assessed using 4D-CT during active flexion-extension and radial-ulnar deviation. A linear mixed model was used to compare the carpal motion patterns. Sex had no influence on carpal kinematics. Hand-dominance in males did have a significant effect on carpal kinematics. During flexion-extension of the male wrist, more radial-ulnar deviation of the lunate, scaphoid and capitate of the non-dominant hand was seen. During radial-ulnar deviation of the male wrist, radial-ulnar deviation and pro-supination of the lunate was more in the dominant hand. This study provides a better understanding of carpal kinematics and the effect of sex and hand-dominance on the scaphoid, lunate and capitate in uninjured wrists.
手腕病理学通常通过将对侧手腕作为基线运动和力量的比较来诊断。然而，最近的运动范围研究表明，女性的腕骨运动模式与男性不同，而且优势腕骨的运动模式也不同。本研究旨在使用四维 CT（4D-CT）分析评估性别和手优势对健康未受伤志愿者的舟状骨、月骨和头状骨体内运动学的影响。在这项前瞻性研究中，对 20 名未受伤的白种志愿者（11 名男性和 9 名女性）的双侧手腕在主动屈伸和桡尺偏位时使用 4D-CT 进行评估。线性混合模型用于比较腕骨运动模式。性别对腕骨运动学没有影响。男性的手优势确实对手腕运动学有显著影响。在男性手腕的屈伸过程中，非优势手的月骨、舟骨和头状骨的尺偏度更大。在男性手腕的桡尺偏位时，优势手的月骨的尺偏和旋前度更大。本研究更好地了解了未受伤手腕中腕骨运动学以及性别和手优势对手舟骨、月骨和头状骨的影响。
