Patent ID: 8273090

Claim:
A resection system for prosthesis implantation in a tibial plateau or a femoral condyle, the resection system comprising: a plurality of resection instruments, the plurality of resection instruments comprising a fixing support for nailing to a tibia or a femur, a guide holder mounted on the fixing support, a cutting tool and a cutting guide comprising a slot for passage of the cutting tool, the cutting tool for resecting the tibial plateau or the femoral condyle, the cutting tool being mounted on the guide holder; an exploration means for capturing a first image of the tibia or the femur; a computer for receiving the first image, modeling the tibia or femur in three-dimensions, and defining a virtual position of the plurality of resection instruments along a cutting plane; a removable reference plate mounted on the fixing support to send by means of the exploration means, a second image of a position and orientation of the fixing support to the computer to redefine the cutting plane and position of the plurality of resection instruments; and a calibration tool for adjusting the cutting tool; wherein the guide holder comprises a positioning support for the cutting guide, the positioning support comprising a groove, the cutting guide being received in the grove, a pair of parallel shafts solidly joined to the positioning support, each of the pair of parallel shafts comprising a first end and a second ends, the pair of shafts being joined at the first end and the second end, a carriage slideably mounted on the pair of shafts, the carriage comprising an upper plate and a lower plate, the upper and lower plate each comprising a central opening, the upper and lower plates joined to each other by a plurality of fastening screws, a ball-and-socket joint disposed between the central openings of the plates, the ball-and-socket joint rotating along a horizontal plane and a vertical plane with respect to a plane in which the carriage slides, a central screw joining the guide holder to the fixing support, the central screw limiting movement of the ball-and-socket joint, a socket housing underneath the ball-and-socket joint, the socket housing being coupled to an upper section of the fixing support, and a fixing screw for holding the upper plate and lower plate against the ball-and-socket joint and against one of the shafts to fix a relative orientation of the guide holder with respect to the central screw.