SYSTEMS AND METHODS FOR PLANNING, PERFORMING, AND ASSESSING SPINAL CORRECTION DURING SURGERY

1 . A system for use during a surgical procedure, the system comprising:

a control unit configured to:

obtain a horizontal pelvic line (HPL) and a central sacral vertical line (CSVL);

obtain a horizontal shoulder line (HSL) and an orthogonal midline (OM);

compare the HPL and the CSVL with the HSL and the OM;

determine an angle between the HPL and the HSL; and

convert the angle to a patient position.

2 . The system of claim 1 , further comprising a fixture for obtaining one or more of said HPL, CSVL, HSL, and OM.

3 . The system of claim 2 , wherein the fixture comprises a radio dense horizontal member and a radio dense vertical member orthogonal to the horizontal member.

4 . The system of claim 3 , wherein the radio dense horizontal and vertical members comprise a K-wire.

5 . The system of claim 4 , wherein the K-wire is permanently embedded in the fixture.

6 . The system of claim 3 , wherein the vertical member further comprises one or more mating features for interaction with a digitizing pointer.

7 . The system of claim 2 , wherein the fixture further comprises an integrated adhesive material.