Clinical Utility and Gait Analysis of NextAR System AUS

NCT ID: NCT05863741

Last Updated: 2025-09-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-05-15

Study Completion Date

2026-05-31

Brief Summary

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This study titled "Does Personalised Soft Tissue Balance Data Improve Outcomes in Patients Undergoing Medially Stabilised Arthroplasty? A Prospective, Randomised Study Investigating the Clinical Utility of the NextAR navigation system (NextAR)" is a randomised, single blinded, prospective cohort study with the primary aim determine the clinical utility of the NextAR system data in providing soft tissue balance patterns to enable prosthesis implants to resemble more native knee alignment.

Detailed Description

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This study titled "Does Personalised Soft Tissue Balance Data Improve Outcomes in Patients Undergoing Medially Stabilised Arthroplasty? A Prospective, Randomised Study Investigating the Clinical Utility of the NextAR navigation system (NextAR)" is a randomised, single blinded, prospective cohort study with the primary aim determine the clinical utility of the NextAR system data in providing soft tissue balance patterns to enable prosthesis implants to resemble more native knee alignment.

The aims of this study are:

* To determine the clinical utility of the NextAR system data in providing soft tissue balance patterns to enable prosthesis implants to resemble more native knee alignment
* To determine whether NextAR system data contributes to improving patient outcomes and knee kinematics following TKR surgery, by providing greater flexion range that is equivalent to native knee motion.
* To assess clinical outcomes measured by standardised assessments, including radiographic evidence, the Forgotten Joint Score (FJS), the Oxford Knee Score (OKS), International Knee Documentation Committee (IKDC) and European Quality of Life Five Dimensions - Five Levels (EQ5D-5L) questionnaires.
* Determining the kinematics of the replaced knee as measured by 3D gait analysis.

According to study protocol, clinical evaluation is performed preoperatively and postoperatively at 6 weeks, 6 months, 1, and 2 years with the use of the Forgotten Joint Score (FJS), Oxford Knee Score (OKS), International Knee Documentation Committee (IKDC) and European Quality of Life Five Dimensions - Five Levels (EQ5D-5L).

CT scan is performed preoperatively and at 6-weeks after surgery, while X-ray assessment is performed at baseline and at the 1-year follow up.

Conditions

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Total Knee Arthroplasty

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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control study

patients will be operated with conventional instrumentation

Implantation of GMK Sphere with conventional instrumentation

Intervention Type DEVICE

Implantation of GMK Sphere with conventional instrumentation (control group)

NextAR study

patients will be operated using the NextAR guidance system

Implantation of GMK Sphere using the NextAR guidance system

Intervention Type DEVICE

Implantation of GMK Sphere using the NextAR guidance system (NextAR group)

Interventions

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Implantation of GMK Sphere with conventional instrumentation

Implantation of GMK Sphere with conventional instrumentation (control group)

Intervention Type DEVICE

Implantation of GMK Sphere using the NextAR guidance system

Implantation of GMK Sphere using the NextAR guidance system (NextAR group)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* End-stage osteoarthritis of the knee suitable for total knee arthroplasty.
* Aged over 18 years.

Exclusion Criteria

* Unsuitable for TKR due to chronic infection, medical disease, inability to consent, inability to attend for post-operative follow-up, significant psychiatric issues, substance abuse issues
* Previous reconstructive/fracture/arthroplasty surgery on affected knee
* Active inflammation arthropathy
* Significant extra articular deformity
* Morbidly Obese (BMI \>40)
* Pregnant women
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medacta International SA

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ben Jeffcote

Role: PRINCIPAL_INVESTIGATOR

Fremantle Hospital

Locations

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Fremantle Hospital

Fremantle, , Australia

Site Status RECRUITING

Countries

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Australia

Central Contacts

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Arianna Girardi

Role: CONTACT

+41 91 696 60 60

Facility Contacts

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Ben Jeffcote

Role: primary

Other Identifiers

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P02.022.01

Identifier Type: -

Identifier Source: org_study_id

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