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Reinforcement of lumbosacral instrumentation using S1–pedicle screws combined with S2–alar screws | Operative Orthopädie und Traumatologie
![Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00586-016-4550-0/MediaObjects/586_2016_4550_Fig1_HTML.jpg)
Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal
![Pedicle screw stacking: A technical note on instrumentation of lumbar spine with a broken pedicle screw - ScienceDirect Pedicle screw stacking: A technical note on instrumentation of lumbar spine with a broken pedicle screw - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S2214751920304540-gr6.jpg)
Pedicle screw stacking: A technical note on instrumentation of lumbar spine with a broken pedicle screw - ScienceDirect
![Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7ddc4a15a50e7203a1b1cd59f8d01f12136a313e/4-Figure3-1.png)
Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar
![Triangular Osteosynthesis Using an S1 Pedicle Screw and S2 Alar Iliac Screw for a Unilateral Vertically Displaced Sacral Fracture - ScienceDirect Triangular Osteosynthesis Using an S1 Pedicle Screw and S2 Alar Iliac Screw for a Unilateral Vertically Displaced Sacral Fracture - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1878875020314297-gr3.jpg)
Triangular Osteosynthesis Using an S1 Pedicle Screw and S2 Alar Iliac Screw for a Unilateral Vertically Displaced Sacral Fracture - ScienceDirect
![Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12891-017-1537-x/MediaObjects/12891_2017_1537_Fig1_HTML.gif)
Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text
![PDF] Biomechanical Comparison of Same Size Transfacet Screws Versus Pedicle Screws Across the L5-S1 Native Disc | Semantic Scholar PDF] Biomechanical Comparison of Same Size Transfacet Screws Versus Pedicle Screws Across the L5-S1 Native Disc | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/44e5b2f0632700c64e30dc4ec3ef80fd98327262/3-Figure2-1.png)
PDF] Biomechanical Comparison of Same Size Transfacet Screws Versus Pedicle Screws Across the L5-S1 Native Disc | Semantic Scholar
![A, B) Sub-S1 alar screw. Alar screws were added to enhance fixation of... | Download Scientific Diagram A, B) Sub-S1 alar screw. Alar screws were added to enhance fixation of... | Download Scientific Diagram](https://www.researchgate.net/publication/276231789/figure/fig3/AS:643930316103680@1530536359191/A-B-Sub-S1-alar-screw-Alar-screws-were-added-to-enhance-fixation-of-sacrum-for.png)
A, B) Sub-S1 alar screw. Alar screws were added to enhance fixation of... | Download Scientific Diagram
![Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics](http://www.wheelessonline.com/wp-content/uploads/2019/08/Figure-4-5.jpg)
Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics
![Cortical bone trajectory for lumbosacral fixation: penetrating S-1 endplate screw technique: technical note. | Semantic Scholar Cortical bone trajectory for lumbosacral fixation: penetrating S-1 endplate screw technique: technical note. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/566f6c5724028e66e4cf48a90ab6e97e4b9b9bdd/2-Figure1-1.png)
Cortical bone trajectory for lumbosacral fixation: penetrating S-1 endplate screw technique: technical note. | Semantic Scholar
![Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00586-023-07841-y/MediaObjects/586_2023_7841_Fig4_HTML.jpg)
Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal
![Three-dimensional fluoroscopic navigation versus fluoroscopy-guided placement of pedicle screws in L4-L5-S1 fixation: single-centre experience of pedicular accuracy and S1 cortical fixation of 810 screws - García-Fantini - Journal of Spine Surgery Three-dimensional fluoroscopic navigation versus fluoroscopy-guided placement of pedicle screws in L4-L5-S1 fixation: single-centre experience of pedicular accuracy and S1 cortical fixation of 810 screws - García-Fantini - Journal of Spine Surgery](https://cdn.amegroups.cn/journals/jss/files/journals/24/articles/4333/public/4333-PB4-1443-R1.png/w300)