The knee-chest position is a position used in a number of medical situations including gynecological examination and surgery, lumbar spine surgery, labor and delivery for which it is recommended in those with a cord prolapse until delivery can occur, and administrating enemas. The knee-chest position is a position used in a number of medical situations including gynecological examination and surgery, lumbar spine surgery, labor and delivery for which it is recommended in those with a cord prolapse until delivery can occur, and administrating enemas.