NCT05113303

Brief Summary

The Columbus® Revision endoprosthetic system is bearing the CE-mark. This means that within the scope of this observational study the patient will not be subjected to any additional stressful, study-related medical examinations or treatment measures. The treatment will be carried out exclusively according to medical standards. The study therefore only serves the purpose of observing this standard-compliant treatment and specifically documenting it scientifically.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 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

First Submitted

Initial submission to the registry

October 11, 2021

Completed
29 days until next milestone

First Posted

Study publicly available on registry

November 9, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

March 16, 2022

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 16, 2023

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 24, 2024

Completed
Last Updated

August 14, 2025

Status Verified

August 1, 2025

Enrollment Period

1.3 years

First QC Date

October 11, 2021

Last Update Submit

August 13, 2025

Conditions

Keywords

Computer Assisted SurgeryRevisionTotal Knee ArthroplastyJoint AlignmentObservational StudyForgotten Joint Score

Outcome Measures

Primary Outcomes (1)

  • Compare the final joint line height between groups after the surgical restoration of native joint line height of revision implants

    Joint line height will be assessed using the systematic, comparative x-ray analysis

    Comparison of final joint line height before the surgery with height at the 3 months follow-up

Secondary Outcomes (6)

  • Maintenance of Hip knee Ankle Angle

    Comparison of HKA before the surgery with HKA at 3 months and 2 years follow-up

  • Forgotten Joint Score

    At final follow-up at least 2 years after surgery

  • WOMAC Score

    At final follow-up at least 2 years after surgery

  • KSS Score

    At final follow-up at least 2 years after surgery

  • Implant survival

    Until final follow-up at least 2 years after surgery

  • +1 more secondary outcomes

Other Outcomes (1)

  • Descriptive analysis of Radiological assessment

    from discharge until final follow-up at least 2 years after surgery

Study Arms (2)

navigation assisted knee revision surgery

Device: Navigated Revision Total Knee Arthroplasty

manual procedure

Device: Manual Revision Total Knee Arthroplasty

Interventions

Patients in the case group receive a Columbus® Revision knee prosthesis, implanted with computer assisted surgery

navigation assisted knee revision surgery

Patients in the control group will correspond to a historical cohort of patients in which manual jig-assisted knee revision was done.

manual procedure

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients in the case group will be recruited consecutively. No selection besides the inclusion and exclusion criteria will take place. The following criteria are applicable for the inclusion of study patients: Patients in the control group will correspond to a historical cohort of patients in which manual jig-assisted knee revision was done. A minimum of two years follow up will be necessary to be included.

You may qualify if:

  • Patient underwent navigated revision surgery using the Columbus® Revision knee prosthesis (case group)
  • Patient underwent conventional manual revision surgery using another implant system (control group)
  • Written informed consent

You may not qualify if:

  • Pregnancy
  • Patient Age at time of revision surgery \< 18 years
  • Allergy to any prosthesis component

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Universitario Cruces

Barakaldo, Bizkaia, 48903, Spain

Location

MeSH Terms

Conditions

Osteoarthritis, KneeCongenital AbnormalitiesProsthesis FailureProsthesis-Related Infections

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesPostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsInfections

Study Officials

  • Emilio Larrazabal Raluy, MD

    Hospital Universitario Cruces, Spain

    PRINCIPAL INVESTIGATOR
  • Igor Gonzales, MD

    Hospital Universitario Cruces, Spain

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 11, 2021

First Posted

November 9, 2021

Study Start

March 16, 2022

Primary Completion

June 16, 2023

Study Completion

March 24, 2024

Last Updated

August 14, 2025

Record last verified: 2025-08

Locations