The anterior blade is applied directly underneath the symphysis. The approach is from below, upwards. Start with the blade almost vertical with the handle down by the bed and the toe of the blade pointing towards the symphysis. Protecting the vaginal wall with your fingers, slide the blade under the pubic symphysis, guiding with your thumb.
If you are unable to listen to the audio commentary on the video, click here to download a PDF transcript of the narration.
The posterior blade is applied directly into the sacral hollow. Start with the blade vertical with the handle up in the air and the toe of the blade pointing towards the sacrum.
Guarding the posterior vaginal wall, insert the blade, sliding it along your fingers.
Remember to insert the blade on the same side as the lock so you don't have to cross the blades over to lock them.