posterodorsal angle

例句：

1. 1. The surgeon made a posterodorsal incision to access the patient's back.
   外科医生进行了后侧切口以进入患者的背部。
2. 2.The carpenter measured the length of the posterolateral braces and marked them on the planks.
   木匠测量了后侧支撑杆的长度，并在木板上做了标记。
3. 3. The researchers found that the posterior angle of the joint was significantly reduced after the surgery.
   研究人员发现手术后关节的后侧角度显著减小。