Systems and methods for planning, performing, and assessing spinal correction during surgery

Abstract

A system for use during a surgical procedure includes 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.

We claim: 
     
         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.