Evidence map›Paper›PMID 38063880›Full record

ArticleArchives of orthopaedic and trauma surgery2024

The psoas muscle index as a useful predictor of total hip arthroplasty outcomes.

Yoshinori Okamoto, Hitoshi Wakama, Junya Matsuyama, Kaito Nakamura, Takafumi Saika, Shuhei Otsuki, Masashi Neo

Abstract read
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In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2024. 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
3.5field-weighted citation impact, top 7% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
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  4. Predicting rehabilitation outcomes following collagenase chemonucleolysis for lumbar disc herniation using psoas muscle index.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 · 2026
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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

7 authors at 2 institutions in 1 country.

Yoshinori OkamotoDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan. yoshinori.okamoto@ompu.ac.jp.ORCID http://orcid.org/0000-0001-8636-7863
Hitoshi WakamaDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Junya MatsuyamaDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Kaito NakamuraDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Takafumi SaikaDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Shuhei OtsukiDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Masashi NeoDepartment of Orthopedic Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan.
Osaka University of Pharmaceutical Sciences · JPSaiseikai Ibaraki Hospital · JP

Funding

Japan Society for the Promotion of Science 21K09239
6 · The paper itself

Abstract

introductionThe aim of this study is to assess the association between the psoas muscle index (PMI) and total hip arthroplasty (THA) outcomes. This is a critical issue as sarcopenia has been associated with poor patient satisfaction post-THA. MATERIALS AND

methodsThis was a retrospective case-control study of 205 THAs, with a mean follow-up of 3.6 (range, 2.0-5.5) years. Age, sex, serum immune markers, spinopelvic parameters, PMI (quantified as the cross-sectional area of the psoas, bilaterally, at L3 divided by the individual's height squared), and patient-reported outcomes were compared between patients 'with' (n = 118) and 'without' (n = 87) achievement of a minimum clinically important difference (MCID) improvement in the EuroQol 5-Dimension (EQ-5D), post-THA. Logistic regression and receiver operating characteristic curve analyses were used to identify predictive factors.

resultsA ≥ MCID improvement in the EQ-5D was associated with the PMI (odds ratio, 0.75; 95% confidence interval, 0.63-0.91; P = 0.028), prognostic nutritional index (odds ratio, 0.85; 95% confidence interval, 0.45-0.94; P = 0.043), and age (odds ratio, 1.09; 95% confidence interval, 1.01-1.18; P = 0.044). After adjusting the PMI threshold to 4.0 cm

conclusionThe PMI, which is associated with nutritional status and global sagittal spinal deformity, does predict THA outcomes. Therefore, it can be useful when discussing THA expectations with patients.

Indexed as

Arthroplasty, Replacement, HipCase-Control StudiesFemaleHumansMalePsoas MusclesRetrospective StudiesTreatment OutcomeEuroQol 5-dimensionNutritionPsoas muscle indexSarcopeniaT1 pelvic angleTotal hip arthroplasty

Identifiers

PMID38063880
OpenAlexW4389481604

What OpenQuestion holds

Textmetadata
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.