...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hand Surgery. American Volume >Stiffness of the first annular pulley in normal and trigger fingers.
【24h】

Stiffness of the first annular pulley in normal and trigger fingers.

机译：第一和第二指环的刚度。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PURPOSE: The cause of snapping in trigger finger is not clearly understood. The purpose of this study was to investigate the influence of stiffness of the first annular pulley on snapping in trigger finger patients with sonoelastography, a new technique for quantitative assessment of the stiffness of soft tissues. METHODS: We first studied 20 healthy volunteers (all women, aged 24-78 y) to define the change of stiffness with aging and with specific fingers. We then studied 10 digits of 9 patients (all women, aged 60-78 y) with trigger finger that involved middle or ring fingers. Thickness and stiffness were evaluated by sonoelastography. Stiffness was estimated by strain ratio of subcutaneous fat to the pulley (F/P strain ratio). The patients were treated with corticosteroid injection, and the measurement was repeated 3 weeks later. RESULTS: In the healthy volunteers, both thickness and F/P strain ratio showed a positive correlation with age. There was no difference between the middle and ring fingers. In trigger finger patients, the pulley thicknesses of the affected finger and the adjacent normal finger before corticosteroid injection were 0.99 +/- 0.19 mm and 0.60 +/- 0.14 mm (mean +/- SD), respectively. The F/P strain ratios of the affected finger and the adjacent normal finger before the injection were 4.2 +/- 1.3 and 2.4 +/- 0.63, respectively. Three weeks after the injection, snapping disappeared in all patients, the pulley thickness decreased to 0.61 +/- 0.15 mm, and the F/P strain ratio decreased to 2.5 +/- 0.68. The cross-sectional area for flexor tendons within the pulley did not change after the injection. CONCLUSIONS: Increased stiffness and thickening of the A1 pulley are considered to be causes for snapping in trigger finger, and corticosteroid injection can alleviate snapping by changing these 2 features.
机译：目的：扳机手指卡住的原因尚不清楚。这项研究的目的是通过超声弹性成像技术研究第一个环形滑轮的刚度对触发手指患者的弹跳的影响，这是一种定量评估软组织刚度的新技术。方法：我们首先研究了20名健康志愿者（所有女性，年龄在24-78岁），以定义僵硬程度随年龄和特定手指的变化。然后，我们研究了9例患者（所有女性，年龄在60-78岁）的10位手指，其中包括中指或无名指。通过超声弹性成像评估厚度和硬度。通过皮下脂肪与滑轮的应变比（F / P应变比）来估计刚度。患者接受皮质类固醇注射治疗，并在3周后重复测量。结果：在健康志愿者中，厚度和F / P应变比均与年龄呈正相关。中指和无名指之间没有区别。在触发性手指患者中，皮质类固醇注射之前，受影响的手指和相邻的正常手指的滑轮厚度分别为0.99 +/- 0.19 mm和0.60 +/- 0.14 mm（平均+/- SD）。注射前受影响的手指和相邻的正常手指的F / P应变比分别为4.2 +/- 1.3和2.4 +/- 0.63。注射后三周，所有患者的咬合均消失，滑轮厚度降至0.61 +/- 0.15毫米，F / P应变比降至2.5 +/- 0.68。注射后，滑轮内屈肌腱的横截面积没有变化。结论：增加的刚度和A1滑轮的增厚被认为是扳机手指弹跳的原因，而皮质类固醇注射可以通过改变这两个特征来缓解弹跳。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号