Figure 2

Scatter diagram of anteversion measured by different measurement methods. The inside of the red dotted line represented the range of the safe zone. (A) Intraoperative fluoroscopy; (B) Postoperative AP X-ray; (C) CT scan.
Scatter diagram of anteversion measured by different measurement methods. The inside of the red dotted line represented the range of the safe zone. (A) Intraoperative fluoroscopy; (B) Postoperative AP X-ray; (C) CT scan.