NCT05219396

Brief Summary

The symptoms of knee osteoarthritis include knee joint pain, impaired proprioception, and etc. Knee arthroplasty is commonly recommended for the patient with severe knee osteoarthritis to relieve pain and regain function. But the effects of arthroplasty on the proprioception and gait performance, which were related to the risk of falling, were not fully understood. Recently, the concept of enhancing the rotational movement has been introduced into the design of the knee joint prosthesis for mimicking the kinematic performance of the healthy knee. However, study on the functional performance after using these rotational designed arthroplasties was still scarce. So, the purpose of this study aims to evaluate the differences in the proprioception, balance function and gait performance among different designs of the knee arthroplasties with mobile bearing (MB), medial congruent (MC) and posterior stabilized (PS) design. This study is divided into the retrospective and prospective parts. Investigators will enroll the patients who already replaced their knee joint by one of the above knee arthroplasties for the retrospective part; other patients who plans to receive one of the above knee arthroplasties, twenty participants for each design and each part. The assessment of proprioception, balance function and gait performance will be performed before the knee arthroplasty, and followed at the post-surgery time points of six weeks and three months. The one-way ANOVA will be used to compare the group differences in the retrospective part, and the two-way mixed model ANOVA for the prospective part. Ultimately, the results of this study could help to have better knowledge of the treatment effects from the different designed knee arthroplasties.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jan 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2022

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2022

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

January 19, 2022

Completed
14 days until next milestone

First Posted

Study publicly available on registry

February 2, 2022

Completed
2.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 24, 2024

Completed
Last Updated

January 28, 2025

Status Verified

January 1, 2025

Enrollment Period

Same day

First QC Date

January 19, 2022

Last Update Submit

January 24, 2025

Conditions

Keywords

knee arthroplastyrotational designproprioceptionbalance functiongait performance

Outcome Measures

Primary Outcomes (12)

  • Knee joint proprioception

    Degrees

    Pre-operation

  • Knee joint proprioception

    Degrees

    Post-operation 6 weeks

  • Knee joint proprioception

    Degrees

    Post-operation 3 months

  • Postural stability index

    Degrees

    Pre-operation

  • Postural stability index

    Degrees

    Post-operation 6 weeks

  • Postural stability index

    Degrees

    Post-operation 3 months

  • Angle of foot during walking

    Degrees

    Pre-operation

  • Angle of foot during walking

    Degrees

    Post-operation 6 weeks

  • Angle of foot during walking

    Degrees

    Post-operation 3 months

  • Western Ontario and McMaster Universities Osteoarthritis Index, WOMAC

    Scoring from 0 to 100, and higher scores mean a better outcome.

    Pre-operation

  • Western Ontario and McMaster Universities Osteoarthritis Index, WOMAC

    Scoring from 0 to 100, and higher scores mean a better outcome.

    Post-operation 6 weeks

  • Western Ontario and McMaster Universities Osteoarthritis Index, WOMAC

    Scoring from 0 to 100, and higher scores mean a better outcome.

    Post-operation 3 months

Study Arms (3)

mobile bearing (MB)

Device: Knee arthroplasty

medial congruent (MC)

Device: Knee arthroplasty

posterior stabilized (PS)

Device: Knee arthroplasty

Interventions

Your knee should be replaced with mobile bearing (MB), medial congruent (MC) and posterior stabilized (PS) design protheses.

medial congruent (MC)mobile bearing (MB)posterior stabilized (PS)

Eligibility Criteria

Age50 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Out patient department

You may qualify if:

  • Diagnosed as knee joint osteoarthritis and will receive knee joint arthroplasty.

You may not qualify if:

  • Already receiving a knee joint arthroplasty surgery
  • Can not walk independently for 20 m
  • Can not stand for 5 min
  • With neurological degenerative disease
  • Lower limb received any surgery within recent 2 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

China Medical University

Taichung, 406040, Taiwan

Location

MeSH Terms

Interventions

Arthroplasty, Replacement, Knee

Intervention Hierarchy (Ancestors)

Arthroplasty, ReplacementArthroplastyOrthopedic ProceduresSurgical Procedures, OperativePlastic Surgery ProceduresProsthesis Implantation

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
6 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 19, 2022

First Posted

February 2, 2022

Study Start

January 1, 2022

Primary Completion

January 1, 2022

Study Completion

December 24, 2024

Last Updated

January 28, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations