1、皮肤切口 Skin incision
The skin incision is along the subcutaneous border of the ulna, between the olecranon process and the ulnar styloid process.
尺骨全长均位于皮下，皮肤切口沿皮下尺骨嵴走形切开，可以从尺骨鹰嘴切开至尺骨颈突
2、深层分离 Dissection
The dissection should be carried out between the flexor carpi ulnaris and the extensor carpi ulnaris muscles. The internervous plane is between the ulnar and posterior interosseous nerves.
分离应在尺侧腕伸肌与尺侧腕屈肌之间进行，神经界面为尺神经与骨间背神经。（如下两图示）
3、切开尺骨骨膜 Incision of ulnar periosteum
According to the position and length of the plate, a delicate detachment of muscles from the periosteum is performed.
根据钢板的位置和长度，剥离软组织，显露尺骨
