Ortho SUV Frame (OSF) is the latest version of hexapod platform which is made by Solomin, Utekhin, and Vilensky in Russian in 2009. The base of this platform is similar to TSF But with the differentiations that in OSF each strut is connected to ring from one side and connected to other strut from another side, this makes it possible to occupy just three holes from each rings. This is very important point because in Ilizarov all holes of ring is Efficient. In addition, this platform could be installed in a very short time and because of high stability there is no needing to insert more wires or pins. In this type of platform the proximal ring is base and distal ring is mobile.