Result The view group was compared with the control group, its relative factors had a significant difference(P< 0. 05).
结果观察组与对照组比较，其相关因素有显著性差异（P＜0．05）。
2
Methods Compare the radiographic operation method, the image and the film success ratio of the original P-A Merchant view with those of the standing weight-bearing Merchant view.
方法通过对常规俯卧后前髌骨轴位和站立负重髌骨轴位的投照方法得出的影像及照片成功率加以对比。
3
On this base, it presents a novel view which thinks the ball sports should be basic teaching materials of p.