通过拇指-环指对掌的指甲尖角度评估拇指对掌时的拇指旋前角度。
Thumb Pronation Angle in Thumb Opposition Evaluated by the Nail Tip Angle of Thumb-Ring Finger Opposition.
作者信息
Taniguchi Shinji, Matsuura Yusuke, Takehara Tatsuya, Yamada Ayae, Shiko Yuki, Nakagawa Koichi, Ohtori Seiji
机构信息
Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Japan.
Department of Orthopaedic Surgery, Toho University School of Medicine, Sakura, Japan.
出版信息
Hand (N Y). 2024 Mar 16:15589447241236249. doi: 10.1177/15589447241236249.
BACKGROUND
This study aimed to devise the method for the evaluation of the thumb pronation angle and calculate its reference value.
METHODS
The study was conducted from October 2021 to March 2022, and 600 hands of 300 healthy volunteers were included in this study. The participants were divided into 6 age groups with 50 participants each. In study 1, 12 participants from group 1 were randomly selected, which included 6 male and 6 female participants. We measured the thumb pronation angle using FASTRAK system and the nail tip angle of thumb-ring finger opposition (T-R angle) and also evaluated the relation between them. In study 2, we measured the T-R angle of 600 hands of 300 healthy volunteers. The T-R angle mean (SD) and 95% confidence interval (CI) of each age group were calculated as reference values.
RESULTS
The thumb pronation angle was correlated with the T-R angle. The T-R angle mean (SD) and 95% CI of the 6 groups were as follows: group 1, 142.5° (12.4) and 117.7 to 167.3; group 2, 139.9° (10.1) and 119.7 to 160.1; group 3, 142.3° (9.7) and 122.9 to 160.5; group 4, 140.2° (12.6) and 115.0 to 165.4; group 5, 138.3° (11.9) and 114.5 to 162.1; and group 6, 135.4° (13.0) and 109.4 to 161.4. The 95% CI tended to decrease with an increasing age.
CONCLUSIONS
The T-R angle was a suitable evaluation method for the thumb pronation angle, and it should be evaluated by age groups.
背景
本研究旨在设计拇指旋前角度的评估方法并计算其参考值。
方法
本研究于2021年10月至2022年3月进行，纳入300名健康志愿者的600只手。参与者被分为6个年龄组，每组50人。在研究1中，从第1组随机选取12名参与者，其中包括6名男性和6名女性参与者。我们使用FASTRAK系统测量拇指旋前角度以及拇指-环指对掌时的指尖角度（T-R角），并评估它们之间的关系。在研究2中，我们测量了300名健康志愿者600只手的T-R角。计算每个年龄组的T-R角平均值（标准差）和95%置信区间（CI）作为参考值。
结果
拇指旋前角度与T-R角相关。6组的T-R角平均值（标准差）和95%CI如下：第1组，142.5°（12.4），117.7至167.3；第2组，139.9°（10.1），119.7至160.1；第3组，142.3°（9.7），122.9至160.5；第4组，140.2°（12.6），115.0至165.4；第5组，138.3°（11.9），114.5至162.1；第6组，135.4°（13.0），109.4至161.4。95%CI倾向于随年龄增长而减小。
结论
T-R角是评估拇指旋前角度的合适方法，应按年龄组进行评估。
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