Interbody fusion was assessed on standing lateral radiographs using the Newton et al 4-level gradingscale.
在X线标准侧位片下用Newton等的4个水平的分级系统对椎间融合评估。
2
The Japanese beef grading system measures overall quality on a scale of one to five, and the level of marbling on a scale of one to 12 (anything over six is off the charts for U.S. standards).