As the field of endourology diversifies, the importance of ergonomics grows. The technology developed to assist the endourologist may accomplish the surgical goals effectively, but it often does not consider instrument control, planning of space, and the physical comfort of the operator. The Greenberg retractor creates a surgical environment that improves the urologist's efficiency and technical proficiency. Complex staghorn cases can be performed with reduced risk of inadvertent damage to renal tissue, no shifts of the nephroscope, and a more productive experience for the assistant.