{"id":"0ec701d7-6ce8-4870-8219-ea4f35d8afb0","slug":"downward-penetrating-endplate-screw-technique-under-o-arm-navigation-posterior-fusion-in-patients-with-osteoporotic-vertebral-body-fractures-associated-with-diffuse-idiopathic-skeletal-hyperostosis","title":"Downward penetrating endplate screw technique under O-arm navigation posterior fusion in patients with osteoporotic vertebral body fractures associated with diffuse idiopathic skeletal hyperostosis","authors":["Daimon Shiraishi","Yu Yamamoto","Ishii Motonori","Yusuke Nishimura","Masahito Hara","Ryuta Saito","Masakazu Takayasu"],"abstract":"Background: A downward penetrating endplate screw (PES) technique combined with caudal anchor screws inserted in the upward direction under O-arm navigation (i.e., crossing screw technique) avoided screw backout and proximal junctional kyphosis (PJK) in three patients with osteoporotic vertebral body fractures and diffuse idiopathic skeletal hyperostosis (DISH). Methods: The PES techniques were utilized for patients with T12 (one patient) and L1 (two patients) spontaneous fusion across the targeted vertebrae, with minimal damage to the involved endplates/intervertebral discs. The average number of instrumented vertebrae was 5.3. Results: There were no perioperative complications over the mean follow-up period of 28.7 months; no screw loosening, and no PJK. Conclusion: The PES technique prevented screw backout, and PJK in three patients with lumbar osteoporotic vertebral fractures and DISH.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/0ec701d7-6ce8-4870-8219-ea4f35d8afb0/featured/hero-1781560943035.png","publishDate":"2022-09-23T00:00:00.000Z","doi":"10.25259/SNI_762_2022","categories":["Spine","Technical Note"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2022/09/11882/SNI-13-436.pdf"}