The following statements are related to occipitopos- terior except:
Malrotation of occiput may cause occipitosacral arrest
10% cases are associated with anthropoid or android pelvis
Incomplete forward rotation of occiput may cause deep transverse arrest
Nonrotation of occiput may cause are associated
All the options given in the question are correct except – option b
“In more than 50%, the occipitoposterior position is associated with either on anthropoid or android pelvis”
Dutta Obs 7/e, p 365