拇外翻足正位X线片负重与非负重HVA和IMA变化趋势及临床意义

The Clinical Significance of Alterant Trend of Hallux Valgus' HVA and IMA by Radiographed on Weightbearing and Non-weightbearing

目的:通过研究拇外翻足在拍摄足正位X线片时负重、非负重HVA、IMA变化的趋势,寻找一种通过非负重角度推算负重角度的简易方法。方法:搜集40例69足拇外翻足负重、非负重正位X线片,测量HVA、IMA值进行比较研究。结果:拇外翻足负重与非负重HVA比较无差异、负重与非负重IMA比较存在显著性差异,具有统计学意义,且IMA变化趋势存在系数关系,但左右侧间IMA相关值无差别。结论:在条件无法满足拍摄负重IMA时,可通过对非负重位IMA的统计学处理得到接近准确的负重位IMA,从而指导拇外翻术式的选择;HVA受负重与非负重体位影响较小。

Objective： To search a facilitated measurement by calculating angle on non-weightbearing to weightbearing by investigating the alteration of hallux valgus＇ HVA and IMA by radiographed on weightbearing and non-weightbearing. Methods： Compared 40 cases of hallux valgus including 69 feet＇s HVA and IMA radiographed between weightbearing and non-weightbearing. Results： HVA of hallux valgus didn＇t have differentia by radiographed between weightbearing and non-weightbearing. IMA of hallux valgus radiographed between weightbearing and non-weightbearing had significant differentia. And weightbearing and non-weightbearing 1MA had linear correlation and regression. There＇s no difference between left and right side. Conclusion： When dissatisfied condition for weightbearing radiography, approximate weightbearing IMA can be calculated by statistical treatment of non-weightbearing one to direct surgical choice. HVA had little influence between weightbearing and non-weightbearing.