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Osteoarthritis, KneeNCT03339557

Comparison of Three Knee Replacements

A study testing NexGen, Persona and PFC in people with Osteoarthritis, Knee and Arthroplasty, run by Coxa, Hospital for Joint Replacement at 1 site in Finland.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The present randomized controlled trial is designed to compare one novel total knee replacement (TKR) design and two conventional TKR designs in terms of functional outcome. 80 patients will be randomized in each of the three arms (240 altogether). Read more about this study

Who is it for?
Ages 50 to 70 yearsHealthy volunteers can take part
What is being tested?
NexGen, Persona and PFC
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
240 participants
Where
1 siteFinland
Study dates
1 Sep 2015to 31 May 2021
Phase
Interventional
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 50 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • patients undergoing total knee replacement surgery for primary osteoarthritis
  • no previous open major surgery in the joint ( e.g. osteotomy)
  • unilateral operative treatment, with no plans for surgical treatment of the contralateral knee in the near future
  • patients living in the local hospital district (Pirkanmaa Hospital District)
  • Kellgren-Lawrence grade 3-4 knee osteoarthritis in plain radiographs

Who cannot join

  • Unwilling to provide informed consent
  • > 15 degrees varus or valgus, or >15 degree fixed flexion deformity
  • predominantly patellofemoral osteoarthritis
  • Physical, emotional or neurological conditions that would compromise the patient´s compliance with postoperative rehabilitation and follow-up (e.g. drug or alcohol abuse, serious mental illness, general neurological conditions such as Parkinson, MS, etc.)

Trial locations and contacts

1 site in 1 country.

Finland1 site
  • Coxa, Hospital for Joint Replacement

    Tampere, Pirkanmaa, 33101

Other trials in Finland

About this study

Official title: Functional Outcome of Total Knee Replacement. Randomized Clinical Controlled Trial of Novel and Conventional Implants

The present randomized controlled trial is designed to compare one novel total knee replacement (TKR) design and two conventional TKR designs in terms of functional outcome. 80 patients will be randomized in each of the three arms (240 altogether).

Read the detailed description

The study will compare the short-term functional outcome (at 2 years) of TKR performed with a novel TKR design (Persona , Zimmer, Warsaw, IN, USA) against TKRs performed with two conventional designs (PFC, DePuy, Warsaw, IN, USA and Nexgen, Zimmer, Warsaw, IN, USA).

Being tested
NexGen, Persona, PFC
Medical subject headings
Osteoarthritis, Knee

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NexGenDevice

    Comparing two conventional designs and one novel design

  • PersonaDevice

    Comparing two conventional designs and one novel design

  • PFCDevice

    Comparing two conventional designs and one novel design

Study groups in NCT03339557
Study groupRoleWhat they receive
PFC Total Knee ReplacementActive comparatorPFC, Conventional design Perioperative treatment will be carried out according to routine protocol of the hospital.
Receives: Device: NexGen; Device: Persona
NexGen Total Knee ReplacementActive comparatorNexGen, Conventional design Perioperative treatment will be carried out according to routine protocol of the hospital.
Receives: Device: Persona; Device: PFC
Persona Total Knee ReplacementActive comparatorPersona, Novel design Perioperative treatment will be carried out according to routine protocol of the hospital.
Receives: Device: NexGen; Device: PFC

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in patient reported outcome measures scores (PROMs), Functional improvement

    Oxford Knee Score (OKS)

    Measured: preoperative, postoperative at 2-3 months, at 1 year and at 2 years

Secondary outcomes (4)
  1. Changes in PROMs, Functional improvement

    Forgotten Joint Score (FJS)

    Measured: preoperative, postoperative at 2-3 months, at 1 year and at 2 years

  2. Changes in health-related quality of life (HRQoL)

    15D

    Measured: preoperative, postoperative at 2-3 months, at 1 year and at 2 years

  3. Changes in activity rating scale

    UCLA activity score

    Measured: preoperative, postoperative at 2-3 months, at 1 year and at 2 years

  4. Changes in pain scale measurement

    VAS pain scale

    Measured: preoperative, postoperative at 2-3 months, at 1 year and at 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Nov 2017
  2. Study start1 Sep 2015
  3. Primary completion31 May 2021 (estimated)
  4. Study completion31 May 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Patients will be recruited from Coxa outpatient clinic according to inclusion and exclusion criteria. The participating orthopedic surgeons will recruit patients along their out-patient work. The indications for the surgical treatment in the study will follow the routine clinical guidelines of the hospital. When TKR surgery is decided, the eligible patients will be informed and those willing to participate will be randomized into one of the three implant groups.
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
240 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03339557
Sponsor's protocol ID
R15053
Status last verified
Feb 2019
First submitted
7 Nov 2017
Last updated
4 Feb 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Ethgen O, Bruyere O, Richy F, Dardennes C, Reginster JY. Health-related quality of life in total hip and total knee arthroplasty. A qualitative and systematic review of the literature. J Bone Joint Surg Am. 2004 May;86(5):963-74. doi: 10.2106/00004623-200405000-00012.

    PubMed 15118039
  • Rasanen P, Paavolainen P, Sintonen H, Koivisto AM, Blom M, Ryynanen OP, Roine RP. Effectiveness of hip or knee replacement surgery in terms of quality-adjusted life years and costs. Acta Orthop. 2007 Feb;78(1):108-15. doi: 10.1080/17453670610013501.

    PubMed 17453401
  • Jenkins PJ, Clement ND, Hamilton DF, Gaston P, Patton JT, Howie CR. Predicting the cost-effectiveness of total hip and knee replacement: a health economic analysis. Bone Joint J. 2013 Jan;95-B(1):115-21. doi: 10.1302/0301-620X.95B1.29835.

    PubMed 23307684
  • Kurtz S, Ong K, Lau E, Mowat F, Halpern M. Projections of primary and revision hip and knee arthroplasty in the United States from 2005 to 2030. J Bone Joint Surg Am. 2007 Apr;89(4):780-5. doi: 10.2106/JBJS.F.00222.

    PubMed 17403800
  • Bourne RB, Chesworth BM, Davis AM, Mahomed NN, Charron KD. Patient satisfaction after total knee arthroplasty: who is satisfied and who is not? Clin Orthop Relat Res. 2010 Jan;468(1):57-63. doi: 10.1007/s11999-009-1119-9.

    PubMed 19844772
  • Scott CE, Howie CR, MacDonald D, Biant LC. Predicting dissatisfaction following total knee replacement: a prospective study of 1217 patients. J Bone Joint Surg Br. 2010 Sep;92(9):1253-8. doi: 10.1302/0301-620X.92B9.24394.

    PubMed 20798443
  • Beswick AD, Wylde V, Gooberman-Hill R, Blom A, Dieppe P. What proportion of patients report long-term pain after total hip or knee replacement for osteoarthritis? A systematic review of prospective studies in unselected patients. BMJ Open. 2012 Feb 22;2(1):e000435. doi: 10.1136/bmjopen-2011-000435. Print 2012.

    PubMed 22357571
  • Giesinger K, Hamilton DF, Jost B, Holzner B, Giesinger JM. Comparative responsiveness of outcome measures for total knee arthroplasty. Osteoarthritis Cartilage. 2014 Feb;22(2):184-9. doi: 10.1016/j.joca.2013.11.001. Epub 2013 Nov 18.

    PubMed 24262431
  • Hamilton DF, Gaston P, Simpson AH. Is patient reporting of physical function accurate following total knee replacement? J Bone Joint Surg Br. 2012 Nov;94(11):1506-10. doi: 10.1302/0301-620X.94B11.30081.

    PubMed 23109630
  • Behrend H, Giesinger K, Giesinger JM, Kuster MS. The "forgotten joint" as the ultimate goal in joint arthroplasty: validation of a new patient-reported outcome measure. J Arthroplasty. 2012 Mar;27(3):430-436.e1. doi: 10.1016/j.arth.2011.06.035. Epub 2011 Oct 13.

    PubMed 22000572
  • Thienpont E, Opsomer G, Koninckx A, Houssiau F. Joint awareness in different types of knee arthroplasty evaluated with the Forgotten Joint score. J Arthroplasty. 2014 Jan;29(1):48-51. doi: 10.1016/j.arth.2013.04.024. Epub 2013 May 18.

    PubMed 23688851
  • Klit J, Jacobsen S, Rosenlund S, Sonne-Holm S, Troelsen A. Total knee arthroplasty in younger patients evaluated by alternative outcome measures. J Arthroplasty. 2014 May;29(5):912-7. doi: 10.1016/j.arth.2013.09.035. Epub 2013 Oct 1.

    PubMed 24269097
  • Grosu I, Lavand'homme P, Thienpont E. Pain after knee arthroplasty: an unresolved issue. Knee Surg Sports Traumatol Arthrosc. 2014 Aug;22(8):1744-58. doi: 10.1007/s00167-013-2750-2. Epub 2013 Nov 8.

    PubMed 24201900
  • Singh JA, Gabriel S, Lewallen D. The impact of gender, age, and preoperative pain severity on pain after TKA. Clin Orthop Relat Res. 2008 Nov;466(11):2717-23. doi: 10.1007/s11999-008-0399-9. Epub 2008 Aug 5.

    PubMed 18679762
  • Perez-Prieto D, Gil-Gonzalez S, Pelfort X, Leal-Blanquet J, Puig-Verdie L, Hinarejos P. Influence of depression on total knee arthroplasty outcomes. J Arthroplasty. 2014 Jan;29(1):44-7. doi: 10.1016/j.arth.2013.04.030. Epub 2013 May 20.

    PubMed 23702267

Questions about this trial

What is this clinical trial studying?

A study testing NexGen, Persona and PFC in people with Osteoarthritis, Knee and Arthroplasty, run by Coxa, Hospital for Joint Replacement at 1 site in Finland.

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 4 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: status not confirmed, as of the sponsor's last update on 4 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Finland. 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?

Results are not available in the source record.

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?

Changes in patient reported outcome measures scores (PROMs), Functional improvement (time frame: preoperative, postoperative at 2-3 months, at 1 year and at 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03339557, which also lists 26 linked publications.

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 4 Feb 2019.

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