SynthesisNeurosurgical review2019
Characteristics and risk factors for proximal junctional kyphosis in adult spinal deformity after correction surgery: a systematic review and meta-analysis.
Synthesis in Neurosurgical review, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis 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.
The trial behind it
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
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.
- Risk factors of early complications after thoracic and lumbar spinal deformity surgery: a systematic 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 · 2023Pooled it
- Preoperative Thoracic Compensation is Associated With a Lower Risk of Proximal Junctional Kyphosis After Lower Thoracic Fusion for Adult Spinal Deformity.Global spine journal · 2026Article
- Radiographic predictors of proximal junctional kyphosis after adult spinal deformity surgery: a systematic review and meta-analysis.Spine deformity · 2026Article
- Risk Factors for Proximal Junctional Kyphosis in Osteoporotic Versus Non-Osteoporotic Patients After Adult Spinal Deformity Surgery.Journal of clinical medicine · 2026Article
- Key Considerations for the Prevention of Proximal Junctional Kyphosis following Adult Spinal Deformity Surgery: A Literature Review.Spine surgery and related research · 2026Review
- Proximal Junctional Kyphosis Following Spinal Thoracic Deformity Correction in a Patient with Kabuki Syndrome: A Case Report.Journal of orthopaedic case reports · 2026Article
- Lumbar Lateral Dislocation Fracture With Progressive Worsening of Trunk Tilt in Pisa Syndrome Associated With Parkinson's Disease.Case reports in orthopedics · 2026Article
- Postoperative Deterioration of Sagittal Balance in Adult Spinal Deformities: Influence of Preoperative Alignment and Pelvic Incidence.Spine surgery and related research · 2025Article
- A comprehensive review of risk factors and prevention strategies: how to minimize mechanical complications in corrective surgery for adult spinal deformity.Asian spine journal · 2025Article
- Article
- Analysis of Risk Factors Associated with Proximal Junctional Kyphosis Following Long Instrumented Fusion from L1 to Sacrum: Age Itself Does Not Independently Increase the Risk.Medicina (Kaunas, Lithuania) · 2024Article
- The L3 Flexion Angle Predicts Failure of Non-Operative Management in Patients with Tandem Spondylolithesis.Global spine journal · 2024Article
- Lumbar pedicle subtraction osteotomy: techniques and outcomes.North American Spine Society journal · 2024Article
- Proximal junctional kyphosis after adult spinal deformity operated patients with long fusion to the pelvis. Does the type of proximal anchor matter?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 · 2024Article
- The Shape of the Fused Spine is Associated With Acute Proximal Junctional Kyphosis in Adult Spinal Deformity: An Assessment Based on Vertebral Pelvic Angles.Global spine journal · 2024Article
- Simplified S1 vertebral bone quality score independently predicts proximal junctional kyphosis after surgery for degenerative lumbar scoliosis.Journal of orthopaedic surgery and research · 2024Review
- Sagittal Balance Parameters and Proximal Junctional Kyphosis in Adolescent Idiopathic Scoliosis.Journal of clinical medicine · 2024Review
- Quantitative Biomechanical Evaluation for Optimal Spinal Instrumentation to Prevent Mechanical Complications in Spinal Fusion from the Lower Thoracic Spine to the Pelvis for Adult Spinal Deformity: A Finite Element Analysis.Spine surgery and related research · 2023Article
- Association of spinopelvic index with proximal junctional failure developing in adult spinal deformity after surgical treatment: an observational study.BMC musculoskeletal disorders · 2023Observational
- Paraspinal muscle characteristics on MRI in degenerative lumbar spine with normal bone density, osteopenia and osteoporosis: a case-control study.BMC musculoskeletal disorders · 2022Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
There are still controversies on characteristics and risk factors for proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) patients. The objective of this study is to explore the characteristics and risk factors for PJK in ASD. A systematic online search in databases including PubMed, EMBASE, Web of Science, and the Cochrane Library was performed to identify eligible studies. OR and weight mean difference with 95% CI were used to evaluate characteristics and risk factors. A total of 31 studies were finally included. ASD patients with PJK had larger proximal junctional angle (PJA), thoracic kyphosis (TK), pelvic incidence minus lumbar lordosis (PI-LL), and sagittal alignment. Age, female gender, and low BMD/osteoporosis were demographic risk factors for PJK. Using hooks at upper instrumented vertebra (UIV) and the selection of UIV above T8 could reduce the occurrence of PJK, while pelvic fixation was significantly associated with increased occurrence of PJK. Preoperative LL, preoperative pelvic tilt (PT), preoperative LL-TK, preoperative PI-LL, preoperative sagittal vertical axis (SVA), preoperative global spine alignment (GSA), postoperative PJA, change in PJA, postoperative TK, change in LL, change in SVA, and postoperative GSA were identified as risk factors for PJK. In conclusion, PJK patients had larger PJA, larger TK, smaller PI-LL, and larger sagittal alignment. Older female ASD patients with low BMD/osteoporosis are more likely to suffer from PJK. We recommend the following: (1) using hooks at UIV; (2) UIV should be chosen above T8, and pelvic fixation should be avoided if possible; (3) ideal correction of sagittal alignment should be performed to prevent the occurrence of PJK.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.