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A Study to Compare the Press Fit Condylar (P.F.C.) Sigma Rotating-platform High-flexion (RP-F) Versus the Press Fit Condylar (P.F.C.) Sigma Rotating-platform (RP) Knee Implants

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00733369
Recruitment Status : Terminated (This study was closed for the reason of slow recruitment with only 16% of the target subjects recruited over a 29 month period.)
First Posted : August 13, 2008
Results First Posted : August 26, 2014
Last Update Posted : September 13, 2016
Sponsor:
Information provided by (Responsible Party):
DePuy International

Study Description
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Brief Summary:

The main objective of this study is to determine if the P.F.C. Sigma RP-F Knee delivers a greater post-operative range of motion (ROM) compared with the P.F.C. Sigma RP Knee in primary TKA.

The secondary objectives of this investigation are to evaluate the clinical and patient outcomes and survivorship associated with the DePuy P.F.C. Sigma RP-F and RP Posterior Stabilised (PS) Knee over 5 years.


Condition or disease Intervention/treatment Phase
Knee Osteoarthritis Device: PFC Sigma RP-F Device: PFC Sigma RP Phase 4

Detailed Description:

Primary Outcome: Change from pre-operative range of motion at 1 year between patients receiving P.F.C. Sigma RP vs P.F.C. Sigma RP-F

Secondary endpoints: Comparative evaluation of any post-operative variation between subjects receiving primary TKA with either of the above devices in terms of Knee and Osteoarthritis Scores (KOOS), American Knee Society Score (AKS), EQ-5D Score and Oxford Knee Score (OKS)

Study Design
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Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 106 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Prospective, Single Blinded, Multi-centre Randomised Controlled Trial Comparing the Post Operative Range of Motion of the P.F.C. Sigma RP-F Knee With the P.F.C. Sigma RP Knee in Primary Total Knee Arthroplasty.
Study Start Date : November 2007
Actual Primary Completion Date : August 2010
Actual Study Completion Date : August 2014

Resource links provided by the National Library of Medicine


Arms and Interventions
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Arm Intervention/treatment
PFC Sigma RP-F
125 patients to be allocated to this arm according to blinding envelopes
 Device: PFC Sigma RP-F
An orthopaedic implant for total knee replacement with a high flexion rotating platform bearing
Active Comparator: PFC Sigma RP
125 patients to be allocated to this arm according to blinding envelopes
 Device: PFC Sigma RP
An orthopaedic implant for total knee replacement with a standard flexion rotating platform bearing


Outcome Measures
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Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Primary Outcome Measures :
  1. Change From Pre-op to 1 Year Range of Motion. [ Time Frame: 1 year ]
    Range of motion is knee flexion (how far the patient can bend their knee) minus knee extension (how far the patient can straighten their knee). The result of this subtraction is the range of motion (bending and straightening) for that knee.


Secondary Outcome Measures :
  1. To Compare the Change in KOOS Pain Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3-6 months ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  2. To Compare the Change in KOOS Pain Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  3. To Compare the Change in KOOS Pain Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  4. To Compare the Change in KOOS Pain Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  5. To Compare the Change in KOOS Symptoms Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3-6 months ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  6. To Compare the Change in KOOS Symptoms Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  7. To Compare the Change in KOOS Symptoms Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  8. To Compare the Change in KOOS Symptoms Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  9. To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3-6 months ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  10. To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  11. To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  12. To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  13. To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3-6 months ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  14. To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  15. To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  16. To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  17. To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3-6 months ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  18. To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  19. To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  20. To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

  21. To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

  22. To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

  23. To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

  24. To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

  25. To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

  26. To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

  27. To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

  28. To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

  29. To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

  30. To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

  31. To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

  32. To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

  33. To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  34. To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  35. To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  36. To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  37. To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  38. To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  39. To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  40. To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  41. To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  42. To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  43. To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  44. To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  45. To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  46. To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  47. To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  48. To Compare the Change in EQ-5D3L Pain/Discomfort Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  49. To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  50. To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  51. To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  52. To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 3 - 6 months ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  53. To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 1 year ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  54. To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 2 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

  55. To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups. [ Time Frame: 5 years ]
    EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.


Eligibility Criteria
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Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   45 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Male or female subjects, aged between 45 and 75 years inclusive.
  • Subjects who are able to give voluntary, written informed consent to participate in this clinical investigation and from whom consent has been obtained.
  • Subjects who, in the opinion of the Clinical Investigator, are able to understand this clinical investigation, co-operate with the investigational procedures and are willing to return to the hospital for all the required post-operative follow-ups.
  • Subjects who present with osteoarthritis that in the opinion of the clinical investigator requires a primary total knee arthroplasty.
  • Subjects who in the opinion of the Clinical Investigator are considered to be suitable for treatment with either the P.F.C Sigma RP-F or the P.F.C Sigma RP knee, according to the indications specified in the package insert leaflet.
  • Subjects who have authorised the transfer of his/her pseudonymised information to DePuy.

Exclusion Criteria:

  • Subjects who, in the opinion of the Clinical Investigator, have an existing condition that would compromise their participation and follow-up in this clinical investigation.
  • Female subjects who are pregnant or lactating.
  • Subjects who are known drug or alcohol abusers or with psychological disorders that could affect follow-up care or treatment outcomes.
  • Subjects who have participated in a clinical investigation with an investigational product in the last month( 30 days).
  • Subjects who are currently involved in any injury litigation claims.
  • Subjects with a known history of poor compliance to medical treatment.
  • Subjects who have previously had an osteotomy or significant surgery in the affected knee.
Contacts and Locations
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Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00733369


Locations
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Spain
Hospital Clinic i Provincial de Barcelona
Barcelona, Spain
United Kingdom
Arrowe Park Hospital
Wirral, Mersyside, United Kingdom
Sponsors and Collaborators
DePuy International
More Information
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Responsible Party: DePuy International
ClinicalTrials.gov Identifier: NCT00733369    
Other Study ID Numbers: CT 06/03
First Posted: August 13, 2008    Key Record Dates
Results First Posted: August 26, 2014
Last Update Posted: September 13, 2016
Last Verified: August 2016
Keywords provided by DePuy International:
Arthroplasty
Replacement
Knee
PFC Sigma RPF
PFC Sigma RP
Additional relevant MeSH terms:
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Osteoarthritis
Osteoarthritis, Knee
Arthritis
 Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases