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Upper versus Lower Lumbar Lordosis Corrections in Relation to Pelvic Tilt – An Essential Element in Surgical Planning for Sagittal Plane Deformity

Retrospective study of a multicenter Adult Spinal Deformity (ASD) Database. To investigate the change in Pelvic tilt (PT) imparted by regional changes in lumbar lordosis at 2-year minimum follow up. The distribution of lumbar lordosis between L1-4 and L4-S1 is known to vary based on pelvic incidence...

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Published in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 2022-08, Vol.47 (16), p.1145-1150
Main Authors: Kim, Han Jo, Alluri, R. Kiran, Lafage, Renaud, Elysee, Jonathan, Smith, Justin S., Mundis, Gregory M., Shaffrey, Christopher I., Ames, Christopher P., Burton, Douglas C., Klineberg, Eric O., Bess, Shay, Schwab, Frank, Gupta, Munish, Lafage, Virginie
Format: Article
Language:English
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Summary:Retrospective study of a multicenter Adult Spinal Deformity (ASD) Database. To investigate the change in Pelvic tilt (PT) imparted by regional changes in lumbar lordosis at 2-year minimum follow up. The distribution of lumbar lordosis between L1-4 and L4-S1 is known to vary based on pelvic incidence (PI). However, the extent to which regional changes effect PT is not clearly elucidated. This information can be useful for ASD surgical planning. Operative patients from a multicenter ASD database were included with Lowest Instrumented Vertebrae (LIV) S1/Ilium, >5 levels of fusion, Proximal Junction Kyphosis (PJK) angle 5 degrees of change in lumbar lordosis from L4-S1 and L1-4. Radiographic analysis was performed evaluating Thoracic Kyphosis (TK), T10-L2 kyphosis (TL), L1-S1 lordosis (LL), L4-S1 lordosis, L1-4 lordosis,sagittal vertical axis (SVA) and PI-LL from preoperative to postoperative, and change at 2-years follow-up. Stepwise regression analysis was performed in order to determine the relationship between PT and the above radiographic parameters. Health-related quality of life (HRQOL)outcomes were also compared between preoperative and postoperative timepoints at 2 years. 103 patients met inclusion for the study. There was improvement in all the radiographic parameters and HRQOLs at 2 years follow-up (p
ISSN:0362-2436
1528-1159
DOI:10.1097/BRS.0000000000004370