NCT01674816

Brief Summary

Problem: Currently, no system allows precise kinematic assessment of the knee and accurate guiding of orthopedic surgical actions in a minimally invasive fashion. However, such a system would prove useful in the clinical setting to improve the quality of surgical interventions at the knee. Hypothesis: A novel knee kinematic assessment and surgical guidance tool using 3D personalized imaging and minimally invasive bony fixation allows precise kinematic assessment and surgical guidance in the routine clinical setting. Objectives :

  • Demonstrating the capacity of the system to precisely measure 3D knee kinematics
  • Quantifying the reproducibility of the kinematic measurements
  • Measuring the impact of knee surgical procedures on knee kinematics
  • Assessing the correlations between measured articular kinematics and clinical results after knee surgery
  • Integrating the novel measuring system to the surgical flow of three knee surgical procedures
  • Quantifying the precision and reproducibility of the surgical actions guided by the system
  • Comparing the clinical results of surgeries guided by the system to those performed with the traditional technique

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable knee-osteoarthritis

Timeline
7mo left

Started Dec 2025

Geographic Reach
1 country

1 active site

Status
not yet 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 Progress43%
Dec 2025Dec 2026

First Submitted

Initial submission to the registry

August 6, 2012

Completed
23 days until next milestone

First Posted

Study publicly available on registry

August 29, 2012

Completed
13.3 years until next milestone

Study Start

First participant enrolled

December 1, 2025

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

February 12, 2024

Status Verified

February 1, 2024

Enrollment Period

1 year

First QC Date

August 6, 2012

Last Update Submit

February 9, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • 3D knee kinematic assessment

    The system should be able to precisely and reproducibly measure 3D knee kinematics (tibio-femoral flexion, abduction-adduction, transverse rotation, and anterio-posterior and medio-lateral translations)

    1 day

  • Precision of guided surgical actions

    The system should allow the surgeon to realize surgical actions, like bone cuts and guide-wire placement, within one degree and one millimeter of the desired target.

    During surgery

  • Precision of guided surgical actions

    The system should allow the surgeon to realize surgical actions, like bone cuts and guide-wire placement, within one degree and one millimeter of the desired target.

    On post-operative imaging (six weeks after surgery)

Secondary Outcomes (6)

  • Clinical results

    At each post-operative visit (six weeks, six months, one year, and two years after surgery)

  • Clinical results

    At each post-operative visit (six weeks, six months, one year, and two years after surgery)

  • Clinical results

    At each post-operative visit (six weeks, six months, one year, and two years after surgery)

  • Clinical results

    At each post-operative visit (six weeks, six months, one year, and two years after surgery)

  • Clinical results

    At each post-operative visit (six weeks, six months, one year, and two years after surgery)

  • +1 more secondary outcomes

Study Arms (2)

Repeated Measurements of Knee Alignment and Kinematics

ACTIVE COMPARATOR

Patients in the Repeated Measurements Arm will have the kinematic measurement protocol repeated twice before and twice after the surgical procedure; the procedure itself will be performed with the traditional technique, i.e without guidance by the system.

Device: Repeated Measurements of Knee Alignment and Kinematics

Computer Guidance of Surgical Actions

ACTIVE COMPARATOR

Patients in the Computer Guidance of Surgical Actions Arm will have the kinematic measurement protocol performed only once before and once after the surgical procedure; the procedure itself will be performed with guidance by the system.

Device: Computer Guidance of Surgical Actions

Interventions

Repeated Measurements of Knee Alignment and Kinematics using tools developed by Eiffel Medtech Inc.

Repeated Measurements of Knee Alignment and Kinematics

Computer Guidance of Surgical Actions using tools developed by Eiffel Medtech Inc.

Computer Guidance of Surgical Actions

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients awaiting a knee surgery (total knee arthroplasty (TKA), high tibial osteotomy (HTO), anterior cruciate ligament reconstruction(ACLR))

You may not qualify if:

  • Active infection
  • Atypical morphology and/or alignment of the lower limbs
  • Knee instability (other than secondary to ACL deficiency in patients awaiting ACLR)
  • Knee flexion contracture of 10 degrees or more
  • Knee flexion of less than 120 degrees

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre Hospitalier de l'Université de Montréal (CHUM)

Montreal, Quebec, H2L 4M1, Canada

Location

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Frédéric Lavoie, MD, MSc, FRCSC

    CHUM

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Frédéric Lavoie, MD MSc FRCSC

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 6, 2012

First Posted

August 29, 2012

Study Start

December 1, 2025

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

February 12, 2024

Record last verified: 2024-02

Locations