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Related Experiment Video

Updated: Jul 24, 2025

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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Postural stability computerized evaluation in total knee arthroplasty.

David Almeida E Reis1,2, Joana Sousa1,3, Jennifer Pires4

  • 1Laboratório de Biomecânica do Porto, Oporto, Portugal.

Disability and Rehabilitation
|July 5, 2023
PubMed
Summary
This summary is machine-generated.

Computerized evaluation of postural stability (PSCE) can quantify balance in patients after total knee arthroplasty (TKA) and those with knee osteoarthrosis (KOA). Post-TKA patients demonstrated improved balance, influenced by factors like age and knee pain.

Keywords:
Balancecomputerized posturographyosteoarthrosispostural stabilitytotal knee arthroplasty

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Area of Science:

  • Orthopedics
  • Biomechanics
  • Rehabilitation Medicine

Background:

  • Knee osteoarthrosis (KOA) and total knee arthroplasty (TKA) significantly impact patient balance and mobility.
  • Objective assessment of balance is crucial for evaluating TKA outcomes and guiding rehabilitation.

Purpose of the Study:

  • To assess balance in patients with KOA and post-TKA using computerized evaluation of postural stability (PSCE).
  • To determine the influence of patient characteristics on PSCE performance in the post-TKA group.

Main Methods:

  • An observational, cross-sectional study involving patients with KOA and patients >9 months post-TKA.
  • Assessment included sociodemographic, radiographic, clinical data, and PSCE using the Biodex Balance System.

Main Results:

  • Post-TKA patients exhibited improved balance, showing greater load on the replaced knee and less imbalance on static and dynamic platforms.
  • Better postural stability was observed in monopodalic stance for post-TKA patients.
  • Age, weight, operated knee pain, extension deficit, and Berg Balance Scale scores correlated significantly with PSCE performance in post-TKA patients.

Conclusions:

  • Computerized evaluation of postural stability (PSCE) is a valuable tool for quantifying balance in patients with KOA and following TKA.
  • Patient-specific factors significantly influence balance outcomes after TKA, highlighting the need for personalized rehabilitation strategies.