Evidence map›Paper›PMID 35034500›Full record

ArticleGlobal spine journal2023

Psoas Muscle Index as a Predictor of Perioperative Outcomes in Geriatric Patients Undergoing Spine Surgery.

Mark N Pernik, William H Hicks, Omar S Akbik, Madelina L Nguyen, Ivan Luu, Jeffrey I Traylor, Palvasha R Deme, Luke J Dosselman, Kristen Hall, Sarah A Wingfield and 2 more

Open access · goldAbstract read
In one paragraph

Article in Global spine journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 4 pooled it
2.6field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 4 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. The characterization of frailty in spine surgery: a systematic review of frailty indices.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
    Pooled it
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  11. Definitions and adverse outcomes of sarcopenia in older patients in orthopedic and trauma care: A scoping review on current evidence.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  12. Georg Schmorl Prize of the German Spine Society (DWG) 2023: the influence of sarcopenia and paraspinal muscle composition on patient-reported outcomes: a prospective investigation of lumbar spinal fusion patients with 12-month follow-up.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 · 2024
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  16. The effect of age on psoas and paraspinal muscle morphology in patients undergoing posterior lumbar fusion surgery.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
    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

12 authors at 2 institutions in 1 country.

Mark N PernikDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.ORCID 0000-0002-7568-7308
William H HicksDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.ORCID 0000-0002-2689-3199
Omar S AkbikDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.ORCID 0000-0002-5097-4773
Madelina L NguyenDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Ivan LuuDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Jeffrey I TraylorDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Palvasha R DemeDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Luke J DosselmanDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Kristen HallDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Sarah A WingfieldDepartment of Internal Medicine, Geriatrics Division, UT Southwestern Medical School, Dallas, TX, USA.
Salah G AounDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.ORCID 0000-0003-3499-7569
Carlos A BagleyDepartment of Neurological Surgery, UT Southwestern Medical School, Dallas, TX, USA.
Neurological Surgery · USSouthwestern Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designSingle-center retrospective study.

objectiveThe objective of this study was to evaluate the association of psoas muscle mass defined sarcopenia with perioperative outcomes in geriatric patients undergoing elective spine surgery.

methodsWe included geriatric patients undergoing thoracolumbar spinal surgery. Total psoas surface area (TPA) was measured on preoperative axial computerized tomography or magnetic resonance imaging at the L3 vertebra and normalized to the L3 vertebral body area. Patients were divided into quartiles by normalized TPA, and the fourth quartile (Q4) was compared to quartiles 1-3 (Q1-3). Outcomes included perioperative transfusions, length of stay (LOS), delirium, pseudoarthrosis, readmission, discharge disposition, revision surgery, and mortality.

resultsOf the patients who met inclusion criteria (n = 196), the average age was 73.4 y, with 48 patients in Q4 and 148 patients in Q1-3. Q4 normalized TPA cut-off was <1.05. Differences in Q4 preoperative characteristics included significantly lower body mass index, baseline creatinine, and a greater proportion of females (Table 1). Q4 patients received significantly more postoperative red blood cell and platelet transfusions and had longer ICU LOS (

conclusionPreoperative TPA in geriatric patients undergoing elective spine surgery is associated with increased need for intensive care and postoperative blood transfusion. Preoperative normalized TPA is a convenient measurement and could be included in geriatric preoperative risk assessment algorithms.

Indexed as

frailtygeriatricsoutcomespsoas muscle indexrisksarcopeniaspine

Identifiers

PMID35034500
PMCPMC10556882
OpenAlexW4206453092

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.