The perpendicular distance from the insertion point (P) of virtual cylindrical implant to the pubic symphysis (A) and the rim of superior ramus of pubis ( were measured respectively.

• 分别测量虚拟圆柱状内植物入钉点（p）到耻骨联合的垂直距离（A），以及到耻骨上支边缘的垂直距离（B）。