A novel percutaneous sacral endplate penetrating screw technique: enhanced fixation strength with the M-probe: surgical technique.

ABSTRACT: L5-S1 pedicle screw (PS) fixation is commonly used to stabilize lumbosacral degenerative disease. Rigid S1 PS fixation is challenging due to sacral morphology. Various S1 PS techniques have been developed to increase screw insertion torque, including the penetrating S1 endplate screw (S1 PES) technique. This study introduces percutaneous sacral endplate penetrating screw (PSEPS) technique using S1 percutaneous pedicle screw (PPS) with a safer and longer screw trajectory and a novel modified hollow probe (M-probe). Penetrating the S1 superior endplate with a conventional straight hollow probe is challenging due to the thickening of the S1 endplate and the shape of the anterior S1 endplate. Therefore, we developed the M-probe that can easily penetrate the S1 endplate. First, the conventional

SUBMITTER: Hatano M 

PROVIDER: S-EPMC12516418 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature