Before revision: With the finger on the flexion point and palmar surface in a superior direction, note where the back of the finger makes contact with the fourchette (this is used to determine how far the ventouse cup must be URL VACUUM-ASSISTED DELIVERY Practical techniques to improve patient outcomes, by Aldo Vacca, MD References External links URL VACUUM-ASSISTED DELIVERYPractical techniques to improve patient outcomes, by Aldo Vacca,
After revision: With the finger on the flexion point and palmar surface in a superior direction, note where the back of the finger makes contact with the fourchette (this is used to determine how far the ventouse cup must be URL VACUUM-ASSISTED DELIVERY Practical techniques to improve patient outcomes, by Aldo Vacca, MD References Reference