Utility of the L1 pelvic angle (L1PA) for assessment of sagittal alignment of the lumbar spine following short segment fusion: Comparison to segmental measures
This investigation assessed L1PA in over 500 patients undergoing lumbar fusion between L4 and S1 and found that despite value to the measure, important changes to spinal shape and segmental alignment may occur even in the face of Δ L1PA <5°. As such, L1PA serves as a potentially useful adjunct to clinical assessment and radiographic measurement in lumbar degenerative fusion but should not serve as a stand-alone measurement.
Authors
- Bryce A. Basques (ORCID: https://orcid.org/0000-0002-7745-8701)
- Bassel Georges Diebo (ORCID: https://orcid.org/0000-0002-7835-2263)
- Joseph Carroll (ORCID: https://orcid.org/0000-0002-8640-1029)
- Jinseong Kim (ORCID: https://orcid.org/0009-0005-6501-8687)
- Michael Farias (ORCID: https://orcid.org/0000-0002-9705-1351)
- Gemma Pascual González
- Alan H. Daniels (ORCID: https://orcid.org/0000-0001-9597-4139)
- Candace Hurley
- Manjot Singh (ORCID: https://orcid.org/0000-0003-4524-6226)
- Nicolas L. Carayannopoulos
- Zvipo Chisango (ORCID: https://orcid.org/0009-0008-8977-8375)
Institutions
- Brown University (US)
Publication Details
- Journal
- North American Spine Society Journal (NASSJ)
- Published
- 2025-09-23
- DOI
- https://doi.org/10.1016/j.xnsj.2025.100798
- Primary Topic
- Scoliosis diagnosis and treatment
- Type
- article
- Field-Weighted Citation Impact
- 0.00