ArticleCureus2025
Influence of Preoperative Lumbar Deformity on Improvement in Low Back Pain Following Total Knee Arthroplasty.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- The relationship between spino-pelvic parameters with coronal lower extremity alignment in patients with low back pain: a prospective radiographic study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Impact on spino-pelvic alignment by total knee arthroplasty to correct knee flexion deformity in osteoarthritis patients: a retrospective cohort study.Quantitative imaging in medicine and surgery · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeKnee-spine syndrome emphasizes the interplay between knee and spinal alignments. Previous studies have reported that low back pain (LBP) is strongly associated with knee osteoarthritis (OA) pain. Therefore, we investigated how total knee arthroplasty (TKA) influences lumbar alignment and LBP, hypothesizing that LBP improves after TKA in patients without preoperative lumbar deformity.
methodsWe evaluated 87 patients undergoing unilateral primary TKA for knee OA. Lumbar sagittal alignment (C7 sagittal vertical axis (C7-SVA), pelvic tilt (PT), pelvic incidence (PI), lumbar lordosis (LL)), knee alignment (hip-knee-ankle angle), range of motion, and clinical outcomes (EQ-5D, Locomo, 2011 Knee Scoring System, Oswestry Disability Index (ODI)) were assessed preoperatively and at three and 12 months postoperatively. Patients were categorized into three clusters based on preoperative lumbar alignment (PI-LL) and changes in ODI.
resultsRadiographic changes included a significant increase in C7-SVA and LL, and a decrease in PT. Clinically, ODI and EQ-5D improved significantly at three months, with benefits persisting at one year. The greatest improvement in LBP was observed in a cluster with worse preoperative back pain but without severe lumbar deformity.
conclusionPatients without severe lumbar deformity but with LBP may benefit from TKA, as their LBP may be secondary to knee OA. In contrast, those with severe lumbar deformity may show limited LBP improvement postoperatively.
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