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Diebo BG, Balmaceno-Criss M, Lafage R, McDonald CL, Alsoof D, Halayqeh S, DiSilvestro KJ, Kuris EO, Lafage V, Daniels AH. Sagittal Alignment in the Degenerative Lumbar Spine: Surgical Planning. J Bone Joint Surg Am 2024; 106:445-457. [PMID: 38271548 PMCID: PMC10906213 DOI: 10.2106/jbjs.23.00672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
➤ Sagittal alignment of the spine has gained attention in the field of spinal deformity surgery for decades. However, emerging data support the importance of restoring segmental lumbar lordosis and lumbar spinal shape according to the pelvic morphology when surgically addressing degenerative lumbar pathologies such as degenerative disc disease and spondylolisthesis.➤ The distribution of caudal lordosis (L4-S1) and cranial lordosis (L1-L4) as a percentage of global lordosis varies by pelvic incidence (PI), with cephalad lordosis increasing its contribution to total lordosis as PI increases.➤ Spinal fusion may lead to iatrogenic deformity if performed without attention to lordosis magnitude and location in the lumbar spine.➤ A solid foundation of knowledge with regard to optimal spinal sagittal alignment is beneficial when performing lumbar spinal surgery, and thoughtful planning and execution of lumbar fusions with a focus on alignment may improve patient outcomes.
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Affiliation(s)
- Bassel G. Diebo
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Mariah Balmaceno-Criss
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Renaud Lafage
- Department of Orthopaedic Surgery, Lenox Hill Hospital, Northwell Health, New York, NY
| | - Christopher L. McDonald
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Daniel Alsoof
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Sereen Halayqeh
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Kevin J. DiSilvestro
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Eren O. Kuris
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Virginie Lafage
- Department of Orthopaedic Surgery, Lenox Hill Hospital, Northwell Health, New York, NY
| | - Alan H. Daniels
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island
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