Evidence map›Paper›PMID 41558824›Full record

ArticleInternational journal of spine surgery2026

Impact of Vitamin D on Surgical Outcomes for Lumbar Spinal Canal Stenosis.

Yuri Miyakoshi, Takuya Takahashi, Jun Hashimoto, Satoru Egawa, Shingo Morishita, Yu Matsukura, Kentaro Yamada, Takashi Hirai, Tetsuya Jinno, Toshitaka Yoshii and 1 more

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In one paragraph

Article in International journal of spine surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

11 authors.

Yuri MiyakoshiDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Takuya TakahashiDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Jun HashimotoDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Satoru EgawaDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Shingo MorishitaDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Yu MatsukuraDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Kentaro YamadaDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Takashi HiraiDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Tetsuya JinnoDepartment of Orthopedic Surgery, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan.
Toshitaka YoshiiDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan.
Hiroyuki InoseDepartment of Orthopedics, Graduate School, Institute of Science Tokyo, Tokyo, Japan inose.orth@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn recent years, bone health optimization, including vitamin D supplementation, has increasingly been advocated in spinal surgery to improve surgical outcomes. Nevertheless, few studies have explored the connection between blood vitamin D levels and surgical outcomes for lumbar spinal canal stenosis (LSS). The purpose of this study was to investigate the prevalence of vitamin D deficiency among patients with LSS and whether vitamin D levels were associated with surgical outcomes for LSS.

methodsIn this retrospective study, we investigated the association between recovery rate and factors including vitamin D levels using univariate and multivariate regression analyses.

resultsA total of 154 patients (83 men and 71 women) were included in this study. Among them, 71% were diagnosed with vitamin D deficiency. Multivariable linear regression analysis identified preoperative serum vitamin D levels as an independent factor associated with the recovery rate after surgery for LSS (

conclusionsPreoperative vitamin D levels were associated with surgical outcomes for LSS. Further studies are warranted to examine the optimal threshold of vitamin D levels associated with clinical outcomes in spine surgery and whether therapeutic interventions could improve postoperative outcomes. CLINICAL RELEVANCE: This study highlights that vitamin D deficiency is highly prevalent in patients with LSS and is significantly associated with poorer postoperative recovery. LEVEL OF EVIDENCE: 4:

Indexed as

L-JOA scorelumbar spinal canal stenosisoutcomevitamin D

Identifiers

PMID41558824
PMCPMC13036466

What OpenQuestion holds

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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.