中国骨伤2026，Vol.39Issue(8)：801-805,5.DOI:10.12200/j.issn.1003-0034.20250956
超声测量腰椎棘突间距变化率学习曲线的初步研究
Preliminary study on the learning curve of ultrasonic measurement of lumbar spinous process distance change rate
摘要
Abstract
Objective To analyze the learning curve associated with ultrasound measurement of the change rate of lumbar spinous process distance in patients with lumbar disc herniation.Methods A retrospective analysis was conducted on 90 pa-tients with lumbar disc herniation who underwent ultrasound measurement of the change rate of lumbar spinous process dis-tance from October 2018 to October 2020.Patients were sequentially numbered from 1 to 90 according to their visit order.All ultrasound measurements were performed by the same physician.Examination time was recorded for each patient.The cumula-tive sum analysis(CUSUM)method was used to plot the learning curve scatter diagram,which was then fitted with a polynomi-al function to calculate the inflection point(turning point)of the curve.Based on this turning point,patients were divided into a learning exploration group and a learning stability group.Intergroup comparisons of various indicators were performed to veri-fy the existence of the learning curve.Results(1)The best-fit simulation function for the learning curve was Y=8.75+1.86X-0.05X2+0.000 3X3(R2=0.951,P＜0.05),with the turning point identified at the 27th case.(2)There were no statistically signifi-cant differences between the learning exploration group and the learning stability group regarding age,sex,body mass index(BMI),disease duration,Oswestry disability index(ODI)scores,or the change rate of lumbar spinous process distance(P＞0.05).However,the mean examination time was significantly longer in the learning exploration group(3.88±1.30)min com-pared to the learning stability group(2.21±0.32)min(P＜0.05).Conclusion Ultrasound measurement of the change rate of lumbar spinous process distance exhibits a distinct learning curve.The turning point occurs at the 27th case.Once the stable phase is reached,the average examination time stabilizes at approximately(2.21±0.32)min.关键词
超声检查/学习曲线/腰椎/椎间盘移位/棘突Key words
Ultrasonography/Learning curve/Lumbar vertebrae/Intervertebral disc displacement/Spinous process分类
医药卫生引用本文复制引用
宋彦涛,魏戌,王旭,张晨,刘广会,安娜,赵小琪..超声测量腰椎棘突间距变化率学习曲线的初步研究[J].中国骨伤,2026,39(8):801-805,5.基金项目
中国中医科学院望京医院科研课题(编号:WJYY2018-02)Research Project of Wang Jing Hospital of CACMS(No.WJYY2018-02) （编号:WJYY2018-02）
