Clinical trial Recruiting at 1 site Observational Ages 55 and up

Comparing recovery after knee surgery based on body composition

Official title: Association Between Phase Angle and Functional Recovery After Total Knee Arthroplasty

Run by Yonsei University · NCT06701474 · Data updated 2026-11-12

This study is trying to see if patients with knee osteoarthritis recover better after surgery based on their body composition, specifically looking at a measurement called phase angle.

Quick facts

Study typeObservational
Ages55 Years and up
SexAll
Enrollment200 (estimated)
SponsorYonsei University
Academic / other
Locations1 site (Yongin-si, Gyeonggi-do)
StatusRecruiting
StartedSeptember 13, 2024
Main results expectedSeptember 23, 2025
Study endsSeptember 23, 2025
Registry record updatedFebruary 7, 2025
Trial IDNCT06701474 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 55 and over diagnosed with knee osteoarthritis who are planning to undergo total knee arthroplasty.

Probably not a fit

Patients with neurological disorders affecting gait, severe comorbidities, or recent knee surgeries may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to compare the functional recovery of patients with end-stage knee osteoarthritis before and after total knee arthroplasty, focusing on the phase angle level as a measure of body composition. Participants will undergo a series of assessments, including physical function tests, muscle strength evaluations, and bioelectrical impedance analysis, both preoperatively and three months post-surgery. The study seeks to determine if a low phase angle correlates with poorer recovery outcomes compared to a high phase angle. By analyzing these factors, researchers hope to gain insights into the relationship between body composition and postoperative recovery.

Why it matters

Potential benefit: If successful, this study could help identify patients at risk for poorer recovery after knee surgery, allowing for tailored preoperative interventions.

How similar studies have gone: While the specific focus on phase angle in relation to knee arthroplasty recovery is novel, similar studies have shown that body composition can impact surgical outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Individuals aged 55 and over (based on the age on their national ID at the time of consent)
* Individuals diagnosed with knee OA based on medical history, physical examination, and radiographic assessments.
* Individuals who plan to perform total knee arthroplasty

Exclusion Criteria:

* Individuals with gait disturbance due to neurologic disorders such as Parkinson disease, stroke and dementia
* Individuals with severe cardiac, pulmonary, or musculoskeletal disorders that limited quadriceps strength and physical function
* Individuals with knee osteoarthritis due to secondary causes such as rheumatic or traumatic arthritis
* Individuals with a history of any knee surgery within one year.
* Individuals considered clinically unsuitable for the study by the researchers or person in charge based on significant medical findings.

Where it's running

  • Yongin Severance Hospital
    Yongin-si, Gyeonggi-do, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.