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Letter to Editor on "Efficacy of Active Exercises to Improve Range of Motion in Knee Joint After Total Knee Arthroplasty. A Randomized Controlled Trial"...Mogensen L, Rasmussen T, Rasmussen J, et al. Physiotherapy Research International. 2026;31(3):1-10.

This article critically examines the methodology and statistical analysis of a randomized controlled trial investigating the efficacy of active exercises to improve knee joint range of motion (ROM) after total knee arthroplasty (TKA). Key concerns include the use of cluster randomization without acc...

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Published in:Physiotherapy Research International Vol. 31; no. 3; pp. 1 - 3
Main Authors: Bano, Azmat, Aggarwal, Amita
Format: commentary letter Journal Article
Published: Wiley-Blackwell Jul2026
Online Access:View this record in EBSCOhost
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      dt: Jul2026
      vid: 31
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      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        10.1002/pri.70283
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        atl: Letter to Editor on "Efficacy of Active Exercises to Improve Range of Motion in Knee Joint After Total Knee Arthroplasty. A Randomized Controlled Trial"...Mogensen L, Rasmussen T, Rasmussen J, et al. Physiotherapy Research International. 2026;31(3):1-10.
      aug:
        au:
          Bano, Azmat
          Aggarwal, Amita
        affil: Maharishi Markandeshwar Institute of Physiotherapy and Rehabilitation, Maharishi Markandeshwar (Deemed to be University), Ambala Haryana, , India
      sug:
        subj:
          Arthroplasty, Replacement, Knee Rehabilitation
          Knee Joint Physiopathology
          Range of Motion
          Therapeutic Exercise
          Flexion
          Self-Management
          Treatment Outcomes
          Research Methodology
          Random Assignment
          Time
          Self Report
          Patient Compliance
          Preoperative Period
          Unpaired T-Tests
      ab: This article critically examines the methodology and statistical analysis of a randomized controlled trial investigating the efficacy of active exercises to improve knee joint range of motion (ROM) after total knee arthroplasty (TKA). Key concerns include the use of cluster randomization without accounting for intra-cluster correlation, short intervention duration with no long-term follow-up, reliance on self-reported adherence, lack of preoperative ROM data, and inappropriate statistical tests that may underestimate errors and bias results. The critique also highlights issues with treatment dose adherence, absence of standardized exercise force, and potential attrition and Type 1 errors due to analysis choices. These observations aim to inform future research design and interpretation in TKA rehabilitation studies.
      pubtype: Academic Journal
      doctype:
        commentary
        letter
        Journal Article
      ougenre: Article
    language: English
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