Leg section divided into four parts (two right up/down and two left up/down), independent of each other, able to make the following movements:Split of the two sections (right/left) on cog-wheel 0°–90°;Inclination of the two sections on the same mechanism: +90°–90°;Dismountable: removal of the two upper small planes for connection of additional orthopedic accessories.For connection on traumatologic surgical tops.