Evidence map›Paper›PMID 38245710›Full record

Observational studyBMC musculoskeletal disorders2024

The impact of primary total hip and knee replacement on frailty: an observational prospective analysis.

Tobias Kappenschneider, Philip Bammert, Günther Maderbacher, Felix Greimel, Lukas Parik, Dominik Emanuel Holzapfel, Amadeus Dominik Schraag, Julia Götz, Katrin Michalk, Joachim Grifka and 1 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC musculoskeletal disorders, 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
3.8field-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. Review
  2. Article
  3. Article
  4. Article
  5. Intensive care needs after hip and knee replacement: understanding risk profiles for severe postoperative complications.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. 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

11 authors at 2 institutions in 1 country.

Tobias KappenschneiderDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany. t.kappenschneider@asklepios.com.
Philip BammertDepartment of Health Economics, Technical University of Munich, Munich, Germany.
Günther MaderbacherDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Felix GreimelDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Lukas ParikDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Dominik Emanuel HolzapfelDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Amadeus Dominik SchraagDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Julia GötzDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Katrin MichalkDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Joachim GrifkaDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Matthias MeyerDepartment of Orthopaedic Surgery, Regensburg University Medical Center, Kaiser-Karl V.-Allee 3, 93077, Bad Abbach, Germany.
Asklepios Kliniken Bad Abbach · DETechnical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOsteoarthritis is a prevalent condition in frail older adults that requires hip or knee replacement in many patients. The aim of the study was to determine the impact of hip and knee arthroplasty on frailty.

methodsIn this prospective short-term study, we used data from 101 participants of the ongoing Special Orthopaedic Geriatrics (SOG) trial, funded by the German Federal Joint Committee (GBA). Frailty, measured by Fried's Physical Frailty Phenotype (PFP), was assessed preoperatively, 7 days postoperatively, 4-6 weeks and 3 months after hip and knee arthroplasty. ANOVA with repeated measures and post-hoc tests for the subgroups were used for the statistical analysis.

resultsOf the 101 participants, 50 were pre-frail (1-2 PFP criteria) and 51 were frail (≥ 3 PFP criteria) preoperatively. In the pre-frail group, the PFP score decreased from 1.56 ± 0.50 (median 2) preoperatively to 0.53 ± 0.73 (median 0) 3 months after surgery (p < 0.001). The PFP score in the frail cohort decreased from 3.39 ± 1.45 (median 3) preoperatively to 1.27 ± 1.14 (median 1) 3 months postoperatively (p < 0.001). While the PFP score of the pre-frail participants increased 7 days after surgery, the PFP score of the frail group decreased significantly.

conclusionPre-frail individuals often regain robustness and patients with frailty are no longer assessed as frail after surgery. Joint replacement is an effective intervention to improve frailty in hip and knee osteoarthritis.

trial registrationThis study is part of the Special Orthopaedic Geriatrics (SOG) trial, German Clinical Trials Register DRKS00024102. Registered on 19 January 2021.

Indexed as

Arthroplasty, Replacement, HipArthroplasty, Replacement, KneeFrailtyAgedFrail ElderlyHumansOsteoarthritis, HipOsteoarthritis, KneeProspective StudiesFrailtyHip arthroplastyKnee arthroplastyOlder peopleOrthogeriatric

Identifiers

PMID38245710
PMCPMC10799496
OpenAlexW4391052376

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.