Evidence map›Paper›PMID 34674021›Full record

ArticleInternational orthopaedics2022

Effect of continuous passive motion on the early recovery outcomes after total knee arthroplasty.

Magdalena Richter, Tomasz Trzeciak, Małgorzata Kaczmarek

Open access · hybridAbstract read
In one paragraph

Article in International orthopaedics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Efficacy of Active Exercises to Improve Range of Motion in Knee Joint After Total Knee Arthroplasty. A Randomized Controlled Trial.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Magdalena RichterDepartment of Orthopedics and Traumatology, Poznan University of Medical Sciences, 28 Czerwca 1956 r. 135/147, 61-545, Poznan, Poland. mrichter@ump.edu.pl.ORCID http://orcid.org/0000-0003-1818-5288
Tomasz TrzeciakDepartment of Orthopedics and Traumatology, Poznan University of Medical Sciences, 28 Czerwca 1956 r. 135/147, 61-545, Poznan, Poland.
Małgorzata KaczmarekDepartment of Orthopedics and Traumatology, Poznan University of Medical Sciences, 28 Czerwca 1956 r. 135/147, 61-545, Poznan, Poland.
Poznan University of Medical Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionContinuous passive motion (CPM) is a frequently used method in the early post-operative rehabilitation of patients after knee surgery. In this study, the effectiveness of the CPM method was evaluated after primary total knee arthroplasty during an early recovery period.

methodsEighty patients undergoing total knee arthroplasty were assigned into two groups. The experimental group received CPM and active exercises, while the control group active exercises only. All subjects were evaluated once before the surgery and at a discharge, in terms of mean active range of motion (AROM), mean Knee Society Score (KSS), and Western Ontario and MacMaster Universities Osteoarthritis Index (WOMAC).

resultsThe mean AROM for the experimental group was 82.3° ± 14.3° and 76.1° ± 22.2° for the control. The mean KSS score was 136.4 ± 19.3 points for the experimental group, and 135.7 ± 15.1 for the control. There were no statistical differences between the two groups. The KSS functional score was 66.4 ± 8.1 points for the experimental group compared to 62.2 ± 7.3 points for the control, but there was a statistically significant difference between the groups at discharge from the hospital (p = 0.009). A subjective estimation of the pain level, joint stiffness and function also showed a statistically significant difference between the two groups (38.6 ± 14.3 points for the CPM group and 21.2 ± 15.7 for the control).

conclusionThese findings show that there is no significant effect of CPM in terms of improving clinical measurements. However, there was a significant beneficial effect on the subjective assessment of pain level, joint stiffness, and functional ability.

Indexed as

Arthroplasty, Replacement, KneeOsteoarthritis, KneeHumansKnee JointMotion Therapy, Continuous PassiveRange of Motion, ArticularTreatment OutcomeContinuous passive motionOsteoarthritisRehabilitationTotal knee arthroplasty

Identifiers

PMID34674021
PMCPMC8840904
OpenAlexW3206746801

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Registered trials

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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.