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Knee Body Perception and Pain After Total Knee Arthroplasty

NCT07410884 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 285

Last updated 2026-02-18

No results posted yet for this study

Summary

This observational study aims to better understand how knee pain and knee-specific body perception are related over time after total knee arthroplasty (knee replacement) for knee osteoarthritis. Although most people improve after surgery, some continue to experience ongoing pain. Disturbed body perception such as feeling that the knee is less clear, less familiar, or difficult to "sense" or "control" as usual-has been linked to chronic musculoskeletal pain, but the timing of its relationship with postoperative pain after knee replacement is not well understood.

Adults undergoing primary total knee arthroplasty at Fukuoka Orthopaedic Hospital will be invited to participate. Participants will be asked to complete brief self-report questionnaires about (1) knee pain intensity during movement, (2) knee pain intensity at rest, and (3) knee-specific body perception (how the knee feels and is perceived). Pain intensity will be recorded using 100-mm visual analogue scales, and knee-specific body perception will be assessed using a validated questionnaire. Questionnaires will be completed before surgery (within one week prior) and at 1, 3, 6, and 12 months after surgery.

All surgical and rehabilitation care will be provided as part of usual clinical practice. Participation in this study involves completing questionnaires only and does not change clinical care. The study will examine whether within-person changes in knee body perception are associated with later changes in pain intensity across the first postoperative year, while also accounting for stable differences between individuals.

Information from this study may help identify potentially modifiable factors associated with persistent pain after knee replacement and may inform future research on rehabilitation strategies that target body perception and related sensorimotor processes. Study data will be handled confidentially in accordance with institutional policies, and analyses will be conducted on de-identified data whenever possible.

Conditions

  • Knee Arthroplasty, Total
  • Knee Osteoarthristis

Sponsors & Collaborators

  • Prefectural University of Hiroshima

    lead OTHER

Eligibility

Min Age
50 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-10-08
Primary Completion
2024-10-24
Completion
2024-10-24

Countries

  • Japan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07410884 on ClinicalTrials.gov