Evidence map›Paper›PMID 38574186›Full record

SynthesisJBJS reviews2024

Vitamin D Deficiency Leads to Poorer Health Outcomes and Greater Length of Stay After Total Knee Arthroplasty and Supplementation Improves Outcomes: A Systematic Review and Meta-Analysis.

Kavyesh Vivek, Rayan Kamal, Edward Perera, Chinmay M Gupte

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in JBJS reviews, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
5.5field-weighted citation impact, top 4% of its field
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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Improving Total Joint Outcomes: A Survey of Surgeon Implementation of Perioperative Optimization Protocols.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Observational
  10. Article
  11. 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

4 authors at 2 institutions in 1 country.

Kavyesh VivekDepartment of Surgery and Cancer, Imperial College University, London, United Kingdom.ORCID 0000-0003-1815-6460
Rayan KamalDepartment of Surgery and Cancer, Imperial College University, London, United Kingdom.ORCID 0009-0003-2470-7633
Edward PereraImperial College Healthcare NHS Trust, London, United Kingdom.ORCID 0000-0001-9517-6727
Chinmay M GupteDepartment of Surgery and Cancer, Imperial College University, London, United Kingdom.ORCID 0000-0003-1317-4512
Imperial College Healthcare NHS Trust · GBImperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin D deficiency is increasingly identified as a predictor of poorer outcomes in musculoskeletal disease affecting as many as 1 in 4 people. This study aimed to evaluate the effect of vitamin D supplementation on outcomes after primary total knee arthroplasty (TKA).

methodsA targeted search of terms related to vitamin D and TKA outcomes was performed in PubMed, Cochrane Central Register of Controlled Trials, ClinicalTrials.gov, American Academy of Orthopaedic Surgeons, and British Orthopaedic Association databases. The results were analyzed using forest plots with I2 heterogeneity statistics and pooled effects with 95% confidence intervals (CIs) and p values. A p < 0.05 was considered statistically significant.

resultsA total of 146,054 patients with 150,107 TKRs were analyzed in 10 studies that complied with the inclusion criteria, of which 3 were suitable for meta-analysis. Of these, 4 of the 10 studies showed that vitamin D deficiency resulted in poorer functional outcome scores (Western Ontario and McMasters Universities Osteoarthritis Index, Knee Society Scoring System, and American Knee Society scores), as well as increased risk of revision surgery, incidence of joint infection, and postoperative stiffness. Meta-analysis of length of hospital stay (LOS) demonstrated a significant increase in LOS in patients with vitamin D deficiency (standardized mean difference, -0.54, 95% CI, -0.69 to -0.38, p < 0.00001). Furthermore, outcomes were improved with vitamin D supplementation in 6 of 10 studies.

conclusionVitamin D deficiency results in poorer outcomes of primary TKA, with improved outcomes after supplementation. Further studies should examine the role of preoperative vitamin D screening and/or perioperative supplementation in primary TKA and standardize outcome measures to assess their effect. LEVEL OF EVIDENCE: Level I/II. See Instructions for Authors for a complete description of levels of evidence.

Indexed as

Arthroplasty, Replacement, KneeOsteoarthritis, KneeVitamin DVitamin D DeficiencyDietary SupplementsHumansLength of StayOutcome Assessment, Health CareVitamin D

Identifiers

PMID38574186
PMCPMC10990007
OpenAlexW4393952035

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.