Publication:

A novel technique for precise rod contouring using template rod in minimally invasive spine fixation: a case report

To present an innovative rod templating technique that improves precision in rod contouring and insertion during minimally invasive spine fixation, particularly in cases involving osteoporosis and limited surgical exposure. After insertion of pedicle screws in a 72-year-old osteoporotic patient undergoing delta fixation for high-grade listhesis, an aluminium template rod was passed through the screw tulips and fixed with set screws to capture the spatial configuration of the construct. The contoured template was then used to shape the final titanium rod, which was inserted and secured to achieve in-situ fixation. The templating technique facilitated precise rod contouring, smooth rod passage, and secure fixation without screw backout. The patient experienced significant pain relief and was able to ambulate early. Follow-up at six months showed stable implant positioning with no evidence of screw loosening or pullout. This template-based rod contouring method enhances biomechanical alignment, reduces operative time, and minimises the risk of screw pullout in minimally invasive spine fixation, offering improved surgical efficiency and construct stability in challenging osteoporotic cases.