Development of a smart implant for monitoring spinal stabilization using a rod-integrated measurement system - L. Rodríguez Pino; P.J. Steinbild; N. Wieja; S. Zwingenberger; A. Winkler; R. Gottwald; N. Modler; W. Schmölz; K.D. Schaser; A. Disch (Brain and Spine)