Fig. 2
From: Ergonomic learning curves on gynecological laparoendoscopic single-site (LESS) surgery
Parallel and crossing technology in LESS. A.B.C. In parallel technology, there were the narrow angle between the instruments, the surgeon dominant the instruments along longitudinal depth of the operation field; D.E.F. For crossing technique, the instruments were crossed at the same plane and moved in the opposite direction. Instruments in B. and E.: 30-degree video laparoscope (yellow), dissecting forceps (blue), monopolar scissors (green)