Ischiopubic Symphysiotomy 4.

Ischiopubic Symphysiotomy 4.
Sighting carefully down the spine of the heifer, in order to remain oriented, the operator gives the chisel a few sharp taps with the sliding hammer to seat the blade in the pelvic symphysis. The hand in the vagina monitors the orientation and the forward progress of the chisel.

Seemann CW (1983)