Evidence map›Paper›PMID 35999305›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2022

S2 alar-iliac screw loosening as a preventive factor for hip joint osteoarthritis after adult spinal deformity surgery: a case-control study.

Takuhei Kozaki, Hiroshi Hashizume, Takaya Taniguchi, Daisuke Nishiyama, Hiroshi Iwasaki, Shunji Tsutsui, Masanari Takami, Keiji Nagata, Daisuke Fukui, Manabu Yamanaka and 5 more

Abstract read
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In one paragraph

Article in 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, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Hip pain after spinopelvic fusion in pediatric neuromuscular scoliosis.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 · 2025
    Article
  3. Article
  4. S2AI vs. iliac screws in spinopelvic fixation for adult spinal deformity: a propensity score-matched analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Article
  5. Article
  6. Article
  7. Impact of previous lumbar spine surgery on total hip arthroplasty and vice versa: How long should we be concerned about mechanical failure?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 · 2023
    Article
  8. Spinopelvic fusion surgery from lower thoracic spine to pelvis increased hip joint moment-motion 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 · 2023
    Observational
  9. Revealing the Effect of Spinopelvic Alignment on Hip Disorders.Clinical medicine insights. Arthritis and musculoskeletal disorders · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Takuhei KozakiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Hiroshi HashizumeDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan. hashizum@wakayama-med.ac.jp.ORCID http://orcid.org/0000-0002-9064-0284
Takaya TaniguchiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Daisuke NishiyamaDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Hiroshi IwasakiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Shunji TsutsuiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Masanari TakamiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Keiji NagataDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Daisuke FukuiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Manabu YamanakaDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Hidenobu TamaiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Ryo TaijiDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Shizumasa MurataDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.
Hiroyuki OkaDepartment of Medical Research and Management for Musculoskeletal Pain, 22Nd Century Medical and Research Center, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan.
Hiroshi YamadaDepartment of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to evaluate the progression of hip pathology and risk factors after ASD surgery.

methodsThis case-control study enrolled 123 patients (246 hips); seven hips underwent hip arthroplasty were excluded. We measured the center-edge (CE) angle, joint space width (JSW), and Kellgren-Lawrence (KL) grade. We defined a CE angle˂25° as developmental dysplasia of the hip (DDH). We evaluated S2 alar-iliac (AI) screw loosening at final follow-up.

resultsThe annual decrease in the JSW was 0.31 mm up to 1 year, and 0.13 mm after 1 year (p = 0.001). KL grade progression occurred in 24 hips (10.0%; group P), while no progression occurred in 215 (90.0%; group N) hips. Nonparametric analysis between groups P and N revealed that significant differences were observed in sex, DDH, KL grade, ratio of S2AI screw fixation at baseline, and ratio of S2AI screw loosening at final follow-up. Multiple logistic regression analysis revealed that DDH (p = 0.018, odds ratio (OR) = 3.0, 95%CI = 1.2-7.3), baseline KL grade (p < 0.0001, OR = 37.7, 95%CI = 7.0-203.2), and S2AI screw fixation (p = 0.035, OR = 3.4, 95%CI = 1.1-10.4) were significant factors. We performed sub-analysis to elucidate the relationship between screw loosening and hip osteoarthritis in 131 hips that underwent S2AI screw fixation. Non-loosening of the S2AI screw was a significant factor for KL grade progression (p < 0.0001, OR = 8.9, 95%CI = 3.0-26.4).

conclusionThis study identified the prevalence and risk factors for the progression of hip osteoarthritis after ASD surgery. Physicians need to pay attention to the hip joint pathology after ASD surgery.

Indexed as

Osteoarthritis, HipSpinal FusionAdultBone ScrewsCase-Control StudiesHip JointHumansIliumSacrumAdjacent joint diseaseAdult spinal deformity surgeryHip osteoarthritisS2 alar iliac screw fixation

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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.