RSA-RCT: Attune S+ TKA Versus Sigma TKA
APKnee2-S+
A Clinical Randomized Controlled RSA Trial Comparing the Cemented Attune (S+ Tibia Tray) Fixed Bearing Cruciate Retaining Knee System With the Cemented PFC Sigma Fixed Bearing Cruciate Retaining Knee System
2 other identifiers
interventional
64
1 country
1
Brief Summary
The PFC Sigma Knee by DePuy Synthes is an excellent knee replacement with an excellent clinical track record, good survival rates (98% 10 years survival in patients aged \< 55 years) and minimal early migration as measured with RSA (0.5mm MTPM at two years follow-up). The Attune Knee by DePuy Synthes is an advancement in knee replacement options. It is designed to provide better range of motion and address the unstable feeling some patients experience during everyday activities, such as stair descent and bending. To date, more than 470,000 patients have received an Attune Knee and positive feedback was received regarding patient recovery, stability and motion. The objective of this study is to accurately assess and compare migration, clinical and radiological outcome and patient reported outcomes of two knee prostheses: the Cemented Attune Fixed Bearing Cruciate Retaining Knee System and the Cemented PFC Sigma Fixed Bearing Cruciate Retaining Knee System, both by DePuy Synthes, Warsaw, Indiana, USA. The primary objective of this study is to compare the magnitude and pattern of migration of the prostheses (Femoral and Tibial component). The secondary objective of this study is to compare clinical and radiological outcome of the prostheses and PROMS. This study is designed as a single-blind, randomized trial between the Attune Knee System and PFC Sigma Knee System. 32 patients with the Attune Knee System and 32 patients with PFC Sigma Knee System will be included in this study. The study population will consist of patients with symptomatic osteoarthritis of the knee scheduled for knee replacement surgery at the Department of Orthopaedics, Haags Medisch Centrum The Hague (HMC), The Netherlands. Annually 350 TKA procedures are performed in this department, of which about 90% is Osteo Arthritis (OA) and 10% Rheumatoid Arthritis (RA) and other indications. We anticipate that inclusion can be accomplished within a 1 year period and that the total study duration is 3 years. Main study parameters/endpoints are:
- Migration, measured by means of RSA.
- Patient Reported Outcome Measures by means of questionnaires.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Nov 2019
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 26, 2019
CompletedFirst Posted
Study publicly available on registry
July 30, 2019
CompletedStudy Start
First participant enrolled
November 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
October 30, 2023
October 1, 2023
6.6 years
July 26, 2019
October 26, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Migration, Maximum Total Point Motion (MTPM in mm) measured by means of Radiostereometry (RSA)
Compare the magnitude and pattern of migration of the prostheses (Tibial and Femoral component, smaller MTPM is better) Migration is defined as the relative movement of the prosthesis with respect to the markers in the bone. MTPM is defined as Maximum Total Point Motion, which means the amount of motion of the point that moves the most.
2 Years
Secondary Outcomes (3)
EQ-5D with 3 levels of severity for each of the 5 dimensions (EQ-5D-3L)
2 Years
Knee injury and Osteoarthritis Outcome Score (KOOS-PS)
2 Years
Visual Analogue Scale (VAS) pain
2 Years
Study Arms (2)
ATTUNE
EXPERIMENTALTotal Knee Replacement with the ATTUNE S+ Knee Prosthesis by DePuy
PFC Sigma
ACTIVE COMPARATORTotal Knee Replacement Surgery with PFC Sigma Knee Prosthesis by DePuy
Interventions
Total Knee Replacement (TKR) Surgery with ATTUNE S+ Knee Prosthesis by DePuy
Total Knee Replacement Surgery with PFC Sigma Knee Prosthesis by DePuy
Eligibility Criteria
You may qualify if:
- Patient is diagnosed with osteoarthritis and requires primary knee arthroplasty
- All consecutive patients ("usual care") are included to prevent selection bias in the migration analysis.
- Patient is capable of giving informed consent and expressing a willingness to comply with this study
You may not qualify if:
- The patient has an a-priori risk for a posterior-stabilized total knee arthroplasty.
- Insufficiency of the posterior cruciate ligament (PCL)
- Status after patellectomy
- In case flexion is less than 90 degrees
- The patient is diagnosed with Rheumatoid Arthritis
- When it is expected that the tibia cut during surgery will compromise the attachment of the PCL (because of bony defects)
- The patient is unable or unwilling to sign the Informed Consent specific to this study
- The patient does not understand the Dutch or English language good enough to participate
- Patients indicated for revision arthroplasty instruments because of bone defects or deformity of the bone
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Peter den Hollanderlead
- Leiden University Medical Centercollaborator
Study Sites (1)
Haaglanden Medical Center
The Hague, South Holland, 2501CK, Netherlands
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Peter Hollander, MD
Haaglanden Medical Center
- PRINCIPAL INVESTIGATOR
Rob G Nelissen, Prof.
Leiden University Medical Center
Central Study Contacts
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 INVESTIGATOR
- PI Title
- Orthopedic Surgeon
Study Record Dates
First Submitted
July 26, 2019
First Posted
July 30, 2019
Study Start
November 1, 2019
Primary Completion (Estimated)
June 1, 2026
Study Completion (Estimated)
June 1, 2026
Last Updated
October 30, 2023
Record last verified: 2023-10