<prompt> The following statements are related to symphysiotomy except:The operation is done only when obstruction is anticipatedIsolated outlet contraction is the ideal caseFHS must be presentVentouse is preferable to forceps for extraction  <response>: Symphysiotomy is the operation designed to enlarge the pelvic capacity by dividing the symphisis pubis. It should be done only when the obstruction is ESTABLISHED and not anticipated. -isolated outlet contraction is ideal -FHS must be present -ventouse is preferable to forceps for extraction DC Dutta TB of obstetrics 8th edtn pg 679 