NCT02177227

Brief Summary

The purpose of our study is to determine, using a prospective, randomized-controlled trial, the economic viability and clinical outcomes associated with patient-specific instrumentation (PSI) for total knee arthroplasty in an obese patient population.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
194

participants targeted

Target at P75+ for not_applicable obesity

Timeline
22mo left

Started Aug 2014

Longer than P75 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress87%
Aug 2014Aug 2028

First Submitted

Initial submission to the registry

June 24, 2014

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 27, 2014

Completed
1 month until next milestone

Study Start

First participant enrolled

August 1, 2014

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 6, 2019

Completed
9.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2028

Expected
Last Updated

September 18, 2026

Status Verified

September 1, 2026

Enrollment Period

4.8 years

First QC Date

June 24, 2014

Last Update Submit

September 17, 2026

Conditions

Keywords

Total Knee Arthroplasty (TKA)AttunePrimary Total Knee ProsthesisTruMatch

Outcome Measures

Primary Outcomes (1)

  • Assessment of Possible Change in Radiographic Alignment

    Mechanical axis, sagittal alignment and tibial slope are to be assessed.

    Pre-operatively, 6 weeks post-operatively, 1 year post-operatively

Secondary Outcomes (3)

  • Assessment of Possible Change in Peri-operative metrics

    1 year, 5 years and 10 years post-operatively

  • Patient-completed questionnaires

    pre-operatively, 6 weeks, 3 months, 1 year and then once each year.

  • Incremental cost-utility ratio

    1 year post-operatively, and each year until 10 years post-op

Study Arms (2)

Total Knee Arthroplasty with PSI

EXPERIMENTAL

Total Knee Replacement with the use of the Attune TruMatch (TM) Patient-Specific Instrumentation

Device: Attune TruMatch (TM) Patient-Specific Instrumentation

Total Knee Replacement

NO INTERVENTION

Total Knee Replacement, as per Standard of Care

Interventions

Patients to receive total knee replacement with TruMatch Patient-Specific Instrumentation

Also known as: TruMatch Patient-Specific Instrumentation
Total Knee Arthroplasty with PSI

Eligibility Criteria

Age20 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients with body mass index (BMI; kg/m2) greater than 30 and less than or equal to 50
  • Symptomatic knee osteoarthritis deemed most appropriately treated with total knee arthroplasty
  • Patient greater than 19 and less than or equal to 70 years of age
  • English-speaking

You may not qualify if:

  • History of prior open knee surgery, infection, or previous knee trauma
  • Simultaneous bilateral knee arthroplasty
  • Underlying dementia, cognitive delay, any disorder, or geographic distance that would preclude the completion of the clinical questionnaires
  • Inflammatory arthropathy
  • Chronic pain syndrome
  • Fibromyalgia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

London Health Sciences Centre, University Hospital

London, Ontario, N6A 5A5, Canada

Location

MeSH Terms

Conditions

ObesityOsteoarthritis

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Edward M Vasarhelyi, MD

    London Health Sciences Centre

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Orthopaedic Surgeon

Study Record Dates

First Submitted

June 24, 2014

First Posted

June 27, 2014

Study Start

August 1, 2014

Primary Completion

May 6, 2019

Study Completion (Estimated)

August 1, 2028

Last Updated

September 18, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

Locations