The GNRB is a device that measures the sagittal translation of the tibia at 20° of flexion to reproduce the Lachman position.

Each patient has his own file in which laxity measurements are recorded, as are the specific testing conditions: the tightening force on the thigh, the level of pressure exerted and the results (shift / pressure curves, extension, stiffness).

The system is controlled by a microcalculator that ensures the consistency and precision of the measurements. Comparison tests are performed on each knee while the patient lies on a standard examining table.

The innovative nature of this device lies in the possibility of detecting differences in tibial shift between the two knees, indicating a partial tear, thanks to the precision of the measurements. All data are recorded automatically in the patient’s file.