Plank in the Flank Correction.
"Plank in the flank" or Schaffer method of correction of torsion of the uterus by rolling the cow around the fetus which is kept in place by applying pressure to her abdomen by a person standing on a plank. Note the head of the fetus in the diagrams, it does not change position. The cow is rolled around the fetus to correct the torsion.
Roberts SJ (1986)