Unique Procedure to Remove Pedicle Screw without Compatible Instrumentation: Case Report and Review of Literature

INTRODUCTION: As the number of patients undergoing spine fixation has increased, the requirement for revision surgery has also increased. Difficulty faced while doing revision surgery is mostly in removing polyaxial pedicle screws, especially if we do not have the desired instrumentation. CASE REPORT: A 55-year-old patient previously operated for D12 fracture presented to us with implant failure due to backing out of pedicle screws. Compatible instrumentation to remove the implant was not available as even the cap screw could not be removed due to screwdriver mismatch. Hence, we had to design our own method to address the problem which we did successfully. At present, the patient is on our regular follow-up, is pain free, is able to walk without support, and has not reported any new complaints. CONCLUSION: Method used in our case simplifies and accelerates the screw removal process and provides guidance to any surgeon who faces a similar problem.