Unloading d-dynamic intervertebral device

A method for spinal adjustment using an unloading dynamic intervertebral device comprising:

• a first bar having a first end and a second end, the first bar comprising:
• a guideline proximate the first end of the first bar having at least one elongated gap formed therein, and a shaped bearing configured for bony elements of the spine at the second end of the first bar;
• and a second bar having a first end and a second end, the second bar comprising:
• a guide proximate the first end of the second bar having at least one tang interposed within the at least one elongated gap of the first bar, such that the first bar and the second bar are rotationally and slidably connected with each other about the at least one tang, and a shaped bearing configured for bony elements of the spine at the second end of the second bar, the method comprising:
• mating the shaped bearing of the first bar with at least a first vertebrae of a spine;
• mating the shaped bearing of the second bar with at least a second vertebrae of the spine;
• slidably and rotatably adjusting the first bar about the at least one tang until a desired spacing between the first and second vertebrae is achieved;
• and
• fixing the first bar relative to the second bar when the desired spacing between the first and second vertebrae is achieved.