Surgalign reported that "the patient had surgery on (b)(6) 2023 which was a removal of existing l4-5 posterior screws and rods.Adding l5-s1 tlif, with screws and rods.When final tightening the set screws, the l5 right screw the final tightening driver tip broke off in the set screw.After surgery the patient was complaining of left pain she did not have.The surgeon decided that same pedicle screw may have been placed too laterally and may be causing the pain.Unrelated to the shaft breaking off.The final torque t-handle may have been out of calibration to cause the tip to break off.When revising the screws on the right side on saturday, he could not get that set screw loose and used 3 final torque drivers as well as a couple mis screwdriver shafts.I switched out the final torque t-handle and switched final torque drivers 3 times thinking they may have been out of calibration.It seems when final tightening occurred in previous surgery, the torque break away value was higher.Thus not allowing the final tightener shafts to loosen the set screw without breaking.Dr.Had to use a metal cutting drill to cut the rod and helicopter the screw out.It added about 15 minutes to the procedure with no harm to the patient.All parts will be returned.".
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