Gait Analysis in Patients Underwent Total Knee Arthroplasty With a Medial Pivot Design.

The patients will undergo Gait analysis (integrated movement analysis system) performed at the Complex Laboratory for Movement Analysis and functional-clinical evaluation of the prosthesis of the Rizzoli Orthopedic Institute. The instrumentation used in the Movement Analysis Laboratory consists of a stereophotogrammetric system equipped with eight infrared cameras (Vicon® 460-Oxford system) and 2 dynamometric platforms (Kistler® Instrument, AG Switzerland). The IOR GAIT protocol will be used as a marker set (Leardini et al. 2007). For the evaluation of muscle activation, surface electromyography with 16-channel system will be used (ZeroWire Cometa, Milan). Spatio-temporal parameters, kinematics, kinetics and muscle activation will be evaluated.