The saggital diameter of spinal canal, Povlov ratio and dynamic spinal stenosis parameter were measured on X-ray.

X线片测量椎管矢状径、Povlov比值、动态狭窄参数等指标；

youdao

The saggital diameter of spinal canal, Povlov ratio and dynamic spinal stenosis parameter were measured on X-ray.

X线片测量椎管矢状径、Povlov比值、动态狭窄参数等指标；

youdao