splits the lumbodorsal fascia vertically without incising muscle

Q. The dorsal lumbotomy incisions to expose the kidney:

requires incision of the latissimus dorsi muscle

requires incision of the quadratus lumborum muscle

splits the lumbodorsal horizontally from posterior to anterior

splits the lumbodorsal fascia vertically without incising muscle

requires excision of the 12th rib

A vertical incision that parallels the lateral borders of the sacrospinalis and quadratus lumborum can be made through this lumbodorsal fascia, posteromedial to the first transverse muscle fibers of the transversus abdominis muscle, to gain surgical access to the retroperitoneum and kidney without cutting muscle (the so-called lumbodorsal approach, or dorsal lumbotomy).