Fig. 2From: Biomechanical evaluation of cervical disc replacement with a novel prosthesis based on the physiological curvature of endplateAnterior view of an intact specimen. Each Kirschner pin connected four optical markers to each vertebral body of the specimen. The pressure measuring sensors (Model 060) were inserted into the nucleus at the centre of the disc in C4/5 and C6/7 segmentBack to article page