ArticleBMC musculoskeletal disorders2017
Comparison of low density and high density pedicle screw instrumentation in Lenke 1 adolescent idiopathic scoliosis.
Article in BMC musculoskeletal disorders, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 4 of them syntheses that pooled it.
What it found
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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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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
30 citing papers in PubMed, 4 syntheses or guidelines pooled it, 59 citations in OpenAlex.
- Assessing pedicle morphology in pediatric spinal deformity: can magnetic resonance imaging match computed tomography? A systematic review.Spine deformity · 2026Pooled it
- Traditional Chinese Medicine for adolescent idiopathic scoliosis: a systematic review and meta-analysis.Frontiers in pediatrics · 2025Pooled it
- Low-density pedicle screw in adolescent idiopathic scoliosis: a systematic review and meta-analysis of 1,762 patients.Frontiers in surgery · 2025Pooled it
- Clinical features and surgical treatments of scoliosis in neurofibromatosis type 1: a systemic review and meta-analysis.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 · 2024Pooled it
- Comparative analysis of modified posterior mini-open surgery versus standard open posterior approach for adolescent idiopathic scoliosis correction: a prospective study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Trial
- Correction of Scoliosis with Large Thoracic Curves in Marfan Syndrome: Does the High-Density Pedicle Screw Construct Contribute to Better Surgical Outcomes.Medical science monitor : international medical journal of experimental and clinical research · 2019Trial
- A Narrative Review of Implant Density and Surgical Outcomes in Adolescent Idiopathic Scoliosis.Cureus · 2026Review
- Implant density reduction to avoid proximal junctional failure in adult spine surgery: Computer models and simulations.North American Spine Society journal · 2025Article
- Evaluation of screw density in Lenke type 1 adolescent idiopathic scoliosis: are low and high-density constructs truly comparable?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- Final Fusion Strategies in Early-Onset Scoliosis: Does Implant Density Make a Difference After Magnetically Controlled Growing Rod Treatment?Children (Basel, Switzerland) · 2025Article
- 2D and 3D Classification Systems for Adolescent Idiopathic Scoliosis: Clinical Implications and Technological Advances.Orthopaedic surgery · 2025Review
- Zones where reduced implant density leads to correction loss after scoliosis surgery for Lenke 1A adolescent idiopathic scoliosis: a multicenter study.Spine deformity · 2025Article
- Novel Screw Placement Method for Extremely Small Lumbar Pedicles in Scoliosis.Journal of clinical medicine · 2024Article
- Repeat surgical interventions following "definitive" instrumentation and fusion for idiopathic scoliosis: a 30-year update.Spine deformity · 2024Article
- Article
- Is lower screw density associated with mechanical complications in adult spinal deformity surgery?Spine deformity · 2023Article
- Intermittent pedicle screw application provides better kyphosis restoration in adolescent idiopathic scoliosis for Lenke type 1 and type 2 curves.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 · 2023Article
- Comparative effectiveness of different pedicle screw density patterns in spinal deformity correction of small and flexible operative adolescent idiopathic scoliosis: inverse probability of treatment weighting analysis.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 · 2023Observational
- The Use of High-Density Pedicle Screw Construct with Direct Vertebral Derotation of the Lowest Instrumented Vertebra in Selective Thoracic Fusion for Adolescent Idiopathic Scoliosis: Comparison of Two Surgical Strategies.Asian spine journal · 2023Article
- 5.5-mm Cobalt-Chrome vs 6-mm Titanium Alloy Rods in Surgical Treatment of Lenke 1 Adolescent Idiopathic Scoliosis With High-Density Pedicle Screws and Direct Vertebral Rotation on Differently Shaped Rods: A Retrospective Comparative Cohort Study.International journal of spine surgery · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe correlation between implant density and deformity correction has not yet led to a precise conclusion in adolescent idiopathic scoliosis (AIS). The aim of this study was to evaluate the effects of low density (LD) and high density (HD) pedicle screw instrumentation in terms of the clinical, radiological and Scoliosis Research Society (SRS)-22 outcomes in Lenke 1 AIS.
methodsWe retrospectively reviewed 62 consecutive Lenke 1 AIS patients who underwent posterior spinal arthrodesis using all-pedicle screw instrumentation with a minimum follow-up of 24 months. The implant density was defined as the number of screws per spinal level fused. Patients were then divided into two groups according to the average implant density for the entire study. The LD group (n = 28) had fewer than 1.61 screws per level, while the HD group (n = 34) had more than 1.61 screws per level. The radiographs were analysed preoperatively, postoperatively and at final follow-up. The perioperative and SRS-22 outcomes were also assessed. Independent sample t tests were used between the two groups.
resultsComparisons between the two groups showed no significant differences in the correction of the main thoracic curve and thoracic kyphosis, blood transfusion, hospital stay, and SRS-22 scores. Compared with the HD group, there was a decreased operating time (278.4 vs. 331.0 min, p = 0.004) and decreased blood loss (823.6 vs. 1010.9 ml, p = 0.048), pedicle screws needed (15.1 vs. 19.6, p < 0.001), and implant costs ($10,191.0 vs. $13,577.3, p = 0.003) in the LD group.
conclusionsBoth low density and high density pedicle screw instrumentation achieved satisfactory deformity correction in Lenke 1 AIS patients. However, the operating time and blood loss were reduced, and the implant costs were decreased with the use of low screw density constructs.
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