Effect of high tibial flexion osteotomy on cartilage pressure and joint kinematics: a biomechanical study in human cadaveric knees. Winner of the AGA-DonJoy Award 2004 - Agneskirchner, J D; Hurschler, C; Stukenborg-Colsman, C; Imhoff, A B; Lobenhoffer, P (Arch Orthop Trauma Surg, 2004)