Connected implant with reflector

A method for stabilizing a spine comprising the steps of:

• providing a spinal system:
• an implantable medical device comprising an implant body intended to be attached to a bond of a subject and at least one reflector coupled to the implant body, said at least one reflector being configured to reflect an electromagnetic signal, and being embedded in a surrounding tissue of the subject when the implant body is attached to the bone of the subject, computing a parameter representative of a structure of the bone of the subject from a reflected signal corresponding to a reflection, on the at least one reflector embedded in the surrounding tissue of the subject, of an excitation signal comprising at least one frequency in a characteristic frequency range of the at least one reflector,
• wherein said reflected signal is correlated either directly or indirectly to at least one electrical property variation of the surrounding tissue,
• positioning the at least one reflector is positioned along an internal face of an internal recess of the implant body, wherein the implant body is an intervertebral implant positioned between two adjacent vertebral bodies.