作者单位:CNR, National Research Council of Italy, Institute of Molecular Genetics, Bologna, Italy[1]Medical Technology Lab, Istituto Ortopedico Rizzoli, Bologna, Italy, Dept of Orthopedic[2]Medical Technology Lab, Istituto Ortopedico Rizzoli, Bologna, Italy[3]Dept of Orthopedic-Traumatology and Prosthetic Surgery, Istituto Ortopedico Rizzoli, Bologna, Italy[4]