What size of child can be born with a pelvic diameter of 8.5?

Patient's question:

No

Doctor's answer:

Clinically, pelvic external measurements are usually performed first. The normal value of the interiliac crest diameter is 23—26 cm, the normal value of the iliac crest diameter is 25—28 cm, the greater trochanter diameter is greater than 18.5 cm, the normal value of the interischial tuberosity diameter is 28—31 cm, the normal value of the ischial tuberosity diameter is 8.5—10 cm, and the pubic arch angle is greater than or equal to 90 degrees.