螺钉设计对舟骨不愈合愈合率的影响。
The Effect of Screw Design on Union Rates in Scaphoid Nonunions.
作者信息
Wu Jiwei, Tay Shian Chao, Shin Alexander Y
机构信息
† Department of Hand Surgery, Singapore General Hospital, Singapore.
* Division of Hand Surgery, Mayo Clinic, Rochester, Minnesota, USA.
出版信息
Hand Surg. 2015;20(2):273-9. doi: 10.1142/S0218810415500239.
BACKGROUND
The purpose of this study is to compare the outcome of the conical fully threaded headless screw to that of a smooth shaft headless screw in a series of scaphoid nonunions requiring screw fixation to determine if screw design had an influence on union rates.
METHODS
We retrospectively reviewed 104 cases of surgically treated scaphoid nonunions. After eliminating cases with our exclusion criteria, the study cohort had 40 cases for analysis. A comparison and analysis of union rates was undertaken between the fully threaded Acutrak 2 mini screw and the smooth shaft Herbert screw.
RESULTS
Overall union rate for screw fixation was 88%. The fully threaded conical screw fixation had a significantly lower union rate of 50% compared to 97% for the smooth shaft screws.
CONCLUSIONS
Our data revealed that the fully threaded conical screws were associated with significantly lower union rate compared to the smooth shaft Herbert type screws.
背景
本研究的目的是比较一系列需要螺钉固定的舟骨不愈合病例中，锥形全螺纹无头螺钉与光滑杆无头螺钉的治疗结果，以确定螺钉设计是否对愈合率有影响。
方法
我们回顾性分析了104例接受手术治疗的舟骨不愈合病例。在根据排除标准排除病例后，研究队列中有40例可供分析。对全螺纹Acutrak 2微型螺钉和光滑杆Herbert螺钉的愈合率进行了比较和分析。
结果
螺钉固定的总体愈合率为88%。全螺纹锥形螺钉固定的愈合率显著较低，为50%，而光滑杆螺钉的愈合率为97%。
结论
我们的数据显示，与光滑杆Herbert型螺钉相比，全螺纹锥形螺钉的愈合率显著较低。
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