Knee OsteoarthritisNCT00734019
Survivorship of the Press Fit Condylar (P.F.C.) Sigma Fixed Bearing Knee With a Cobalt Chrome Tibial Tray
An observational study of Knee Osteoarthritis, run by DePuy International at 5 sites in 3 countries.
Trial summary
The study will determine the survivorship of the fixed bearing P.F.C. Sigma knee with a cobalt chrome tibial tray at 5 years. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Knee Osteoarthritis
- What is being tested?
- P.F.C. Sigma Knee
- Type of treatment
- Medical device
- How many people
- 650 participants
- Where
- 5 sitesin 3 countries
- Study dates
- 1 Oct 2005to 9 Mar 2020
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subjects who have given voluntary written informed consent to participate in this study
- Subjects for whom primary total knee replacement is indicated due to degenerative joint disease, including rheumatoid arthritis, osteoarthritis, avascular necrosis, and post traumatic arthritis, which is causing pain, deformity, or limitation of function uncontrolled by medical treatment.
- Subjects who, in the opinion of the Investigator, are able to understand this study, co-operate with the investigational procedures and are willing to return to the hospital for all scheduled post-operative follow ups.
- Male or Female subjects who are skeletally mature and for whom an appropriate size of device is available
- The following subjects are not considered eligible and must not be recruited to the investigation
Who cannot join
- Subjects scheduled for revision total knee arthroplasty, or who have had previous surgery to their knee except menisectomy, arthroscopy or synovectomy.
- Subjects aged over 80 Years
- Subjects experiencing any condition that may, in the opinion of the investigator, interfere with the total knee replacements survival or outcome (e.g. Pagets disease, Charcots disease, severe osteoporosis etc).
- Subjects who have evidence of active infections, which may spread, to other areas of the body (e.g. osteomyelitis, pyrogenic infection of the knee joint, overt infection etc)
- Subjects who are currently participating in any other clinical investigation of a device or pharmaceutical.
- Subjects having non-contained defects in the tibia or femur necessitating bone graft.
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- Subjects with psychosocial disorders that would limit rehabilitation
- Subjects with a known history of poor compliance to medical treatment
- Subjects who are known drug or alcohol abusers.
- Other contraindications for the use of the P.F.C. ® S fixed bearing knee system as listed in the package insert.
- Women who are pregnant
- Subjects who are currently involved in any injury litigation claims
Trial locations and contacts
5 sites in 3 countries.
5 sites in 3 countries
United Kingdom3 sites
Queen Margaret Hospital
Dunfermline, Fife, KY12 0SU
Princess Alexandra Hospital
Harlow, Essex, CM20 1QX
Arrowe Park Hospital
The Wirral, Merseyside, CH49 5PE
Germany1 site
Asklepios Klinic/ Lindenlohe Orthopeadic Hospital
Schwandorf in Bayern, Deutschland
About this study
Official title: A Prospective, Non-comparative, Multicentre, Multinational Study to Determine the Survivorship of the P.F.C. Fixed Bearing Knee System Using a Moderately Cross-linked Polyethylene Insert and a Cobalt Chrome Tibial Tray.
The study will determine the survivorship of the fixed bearing P.F.C. Sigma knee with a cobalt chrome tibial tray at 5 years.
Read the detailed description
The primary objective of this study is to assess the survivorship of the P.F.C. fixed bearing knee system using a cobalt chrome tibial tray and moderately cross-linked polyethylene insert at 5-Years. The secondary objectives of this investigation are to evaluate additional clinical outcomes to provide further information on the performance of the P.F.C. fixed bearing knee system using a moderately cross-linked polyethylene insert and cobalt chrome tibial tray. These outcomes will include Radiographic assessment, American Knee Society Score, Oxford Knee Score and SF-12.
- Conditions
- Knee Osteoarthritis
- Being tested
- P.F.C. Sigma Knee
- Keywords
- Arthroplasty, Replacement, Knee, TKR, PFC Sigma
- Medical subject headings
- Osteoarthritis, Knee
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
P.F.C. Sigma KneeDevice
Orthopaedic implant for primary total knee replacement with a cobalt-chrome tibial tray and a moderately cross-linked polyethylene tibial insert
| Study group | Role | What they receive |
|---|---|---|
| P.F.C. Sigma Knee System | Orthopaedic implant for primary total knee replacement with a cobalt-chrome tibial tray and a moderately cross-linked polyethylene tibial insert Receives: Device: P.F.C. Sigma Knee |
What is being measured
The primary outcome is the main question the study is designed to answer.
The primary endpoint is a survivorship analysis of the P.F.C. fixed bearing knee system with a cobalt chrome tibial tray and moderately cross linked polyethylene insert at the five-year time point.
Measured: 5 years
Secondary outcomes (1)
Changes from pre-operative assessment Clinical outcome and patient-derived outcome in terms of joint-specific quality of life.
Measured: 3 month, 1,3, 5 and 10 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Aug 2008 (estimated)
- Study start1 Oct 2005
- Primary completion3 Jul 2019
- Study completion9 Mar 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Knee OsteoarthritisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 650 participants (actual)
Sponsor and investigators
- Lead sponsor
- DePuy International
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00734019
- Sponsor's protocol ID
- CT 04/16
- Status last verified
- Nov 2021
- First submitted
- 11 Aug 2008
- Last updated
- 1 Dec 2021
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 1 Dec 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective, Non-comparative, Multicentre, Multinational Study to Determine the Survivorship of the P.F.C. Fixed Bearing Knee System Using a Moderately Cross-linked Polyethylene Insert and a Cobalt Chrome Tibial Tray.
- ClinicalTrials.gov ID
- NCT00734019
- Acronym / sponsor ID
- CT 04/16
- Conditions
- Knee Osteoarthritis
- Keywords
- Arthroplasty, Replacement, Knee, TKR, PFC Sigma
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 650 participants (actual)
- Lead sponsor
- DePuy InternationalIndustry (pharma, biotech, devices)
- Study start
- 1 Oct 2005 (actual)
- Primary completion
- 3 Jul 2019 (actual)
- Study completion
- 9 Mar 2020 (actual)
- First posted
- 13 Aug 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study will determine the survivorship of the fixed bearing P.F.C. Sigma knee with a cobalt chrome tibial tray at 5 years.
Detailed description
The primary objective of this study is to assess the survivorship of the P.F.C. fixed bearing knee system using a cobalt chrome tibial tray and moderately cross-linked polyethylene insert at 5-Years. The secondary objectives of this investigation are to evaluate additional clinical outcomes to provide further information on the performance of the P.F.C. fixed bearing knee system using a moderately cross-linked polyethylene insert and cobalt chrome tibial tray. These outcomes will include Radiographic assessment, American Knee Society Score, Oxford Knee Score and SF-12.
Study design
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| P.F.C. Sigma Knee System | – | Device: P.F.C. Sigma KneeOrthopaedic implant for primary total knee replacement with a cobalt-chrome tibial tray and a moderately cross-linked polyethylene tibial insert |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Subjects who have given voluntary written informed consent to participate in this study
- Subjects for whom primary total knee replacement is indicated due to degenerative joint disease, including rheumatoid arthritis, osteoarthritis, avascular necrosis, and post traumatic arthritis, which is causing pain, deformity, or limitation of function uncontrolled by medical treatment.
- Subjects who, in the opinion of the Investigator, are able to understand this study, co-operate with the investigational procedures and are willing to return to the hospital for all scheduled post-operative follow ups.
- Male or Female subjects who are skeletally mature and for whom an appropriate size of device is available
- The following subjects are not considered eligible and must not be recruited to the investigation
Key exclusion criteria (12 listed)
- Subjects scheduled for revision total knee arthroplasty, or who have had previous surgery to their knee except menisectomy, arthroscopy or synovectomy.
- Subjects aged over 80 Years
- Subjects experiencing any condition that may, in the opinion of the investigator, interfere with the total knee replacements survival or outcome (e.g. Pagets disease, Charcots disease, severe osteoporosis etc).
- Subjects who have evidence of active infections, which may spread, to other areas of the body (e.g. osteomyelitis, pyrogenic infection of the knee joint, overt infection etc)
- Subjects who are currently participating in any other clinical investigation of a device or pharmaceutical.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| P.F.C. Sigma KneeOrthopaedic implant for primary total knee replacement with a cobalt-chrome tibial tray and a moderately cross-linked polyethylene tibial insert | Device | P.F.C. Sigma Knee System |
Primary outcome
The primary endpoint is a survivorship analysis of the P.F.C. fixed bearing knee system with a cobalt chrome tibial tray and moderately cross linked polyethylene insert at the five-year time point.
Time frame: 5 years
1 secondary outcome
Changes from pre-operative assessment Clinical outcome and patient-derived outcome in terms of joint-specific quality of life.
Time frame: 3 month, 1,3, 5 and 10 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Dec 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
5 sites in 3 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Knee Osteoarthritis, run by DePuy International at 5 sites in 3 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Dec 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 5 sites in United Kingdom, Germany, Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The primary endpoint is a survivorship analysis of the P.F.C. fixed bearing knee system with a cobalt chrome tibial tray and moderately cross linked polyethylene insert at the five-year time point. (time frame: 5 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Dec 2021; AzTrials last refreshed its copy on 8 Nov 2026.