NCT06389435

Brief Summary

Rationale for conducting the study: The study aims to systematically evaluate the clinical and economic impacts of Robotic-Assisted Total Knee Replacement (RTKR) compared to conventional Total Knee Replacement (TKR). It focuses on the potential benefits of RTKR, including improved precision in surgery, potentially leading to better patient outcomes and reduced healthcare costs. Our primary endpoint is the Forgotten Joint Score (FJS), aimed at measuring patients awareness of their knee joint in everyday life, indicating the success of the knee replacement surgery in restoring natural joint function. Secondary endpoints include patient-reported outcome measures (PROMs), patient activity levels, the accuracy of implant positioning on x-ray, and the incidence of adverse events. Study design: Multicentre,, preference-tolerant, randomized, controlled, superiority trial with two treatment arms that compares the outcomes of RTKR with traditional TKR techniques. Study population: Adult patients aged 18 years and older who are eligible for TKR as per local guidelines and who have given informed consent to participate in the study. Number of patients: 400 Inclusion criteria: Patients must be adults aged 18 years and older, eligible for TKR according to local guidelines, and willing to participate in the study. Exclusion criteria: Patients with extreme malalignment requiring special implants or techniques, patients unfit for surgery due to medical reasons, and those deemed unsuitable to participate in the study for other reasons. Primary outcome variables: The Forgotten Joint Score (FJS) at 2 years after surgery

Trial Health

77
On Track

Trial Health Score

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

Enrollment
250

participants targeted

Target at P75+ for not_applicable

Timeline
20mo left

Started Mar 2024

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
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 Progress57%
Mar 2024Jan 2028

Study Start

First participant enrolled

March 4, 2024

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

April 4, 2024

Completed
25 days until next milestone

First Posted

Study publicly available on registry

April 29, 2024

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2028

Last Updated

April 29, 2024

Status Verified

April 1, 2024

Enrollment Period

2.8 years

First QC Date

April 4, 2024

Last Update Submit

April 26, 2024

Conditions

Keywords

Knee arthroplastyRobotic assistedOsteoartritis

Outcome Measures

Primary Outcomes (1)

  • The Forgotten Joint Score (FJS)

    The primary outcome measurement will be the Forgotten Joint Score (FJS), measured at 24 months post-surgery. The FJS evaluates the patient's ability to 'forget' the artificial joint in their daily life. This scale ranges from 0 to 100, where 0 represents the maximum joint awareness and 100 represents complete joint unawareness, indicating that the patient does not perceive the joint during daily activities. Higher scores indicate a better outcome, reflecting the success of the knee replacement surgery in restoring natural joint function such that the joint feels like a natural part of the body.

    24 months post surgery

Secondary Outcomes (6)

  • KOOS

    preop, 6 weeks, 12 and 24 months post surgery

  • ADLS knee instability

    6 weeks, 12 and 24 months post-operation.

  • The Forgotten Joint Score (FJS)

    6 weeks and 12 months post surgery

  • EQ-5D

    6 weeks, 12 and 24 months post surgery

  • Knee alignment

    6 weeks post surgery

  • +1 more secondary outcomes

Study Arms (2)

RTKR

EXPERIMENTAL

Robotic assisted total knee replacement (RTKR)

Procedure: Patients will be randomized to undergo TKR or RTKR

TKR

ACTIVE COMPARATOR

Standard total knee replacement (TKR)

Procedure: Patients will be randomized to undergo TKR or RTKR

Interventions

Total knee replacement (control group)

RTKRTKR

Eligibility Criteria

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

You may qualify if:

  • Adults aged 18 years and older.
  • Eligible for TKR according to local guidelines and routines.
  • Willingness to participate in the study.

You may not qualify if:

  • Patients with extreme malalignment necessitating special implants or techniques.
  • Patients unfit for surgery due to other medical reasons.
  • Patients who, for other reason such as alcohol or substance abuse, is deemed unsuitable to participate in the study.
  • Patients who, for other reasons can't fulfill the required patient recorded outcome measures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Danderyds Sjukhus

Stockholm, 18288, Sweden

RECRUITING

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Central Study Contacts

Olof Sköldenberg, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

April 4, 2024

First Posted

April 29, 2024

Study Start

March 4, 2024

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2028

Last Updated

April 29, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations