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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT00733330
Registration number
NCT00733330
Ethics application status
Date submitted
11/08/2008
Date registered
13/08/2008
Date last updated
15/08/2014
Titles & IDs
Public title
Minimally Invasive Total Knee Replacement - Navigated Versus Non-navigated Study
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Scientific title
Computer Assisted Navigation in Minimally Invasive Total Knee Arthroplasty: Comparing the Alignment Achieved Using the DePuy Ci Minimally Invasive (Mi) Versus the DePuy Non Navigated Conventional Total Knee Arthroplasty.
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Secondary ID [1]
0
0
CT 03/10
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Osteoarthritis
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0
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Condition category
Condition code
Musculoskeletal
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0
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0
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Osteoarthritis
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Devices - Either P.F.C. Sigma or L.C.S. Complete knee replacement using the conventional surgical approach and manual surgical technique
Treatment: Devices - Either P.F.C. Sigma or L.C.S. Complete knee replacement using minimally invasive surgical approach and computer navigation
Other: Conventional TKR arm - Patients to receive treatment with either a P.F.C. Sigma or L.C.S. knee using the conventional manual surgical technique
Active Comparator: MiTKR CAS arm - Patients to receive treatment with either a P.F.C. or L.C.S. knees in chronological order into the CAS group which will use minimally invasive surgery and computer navigation
Treatment: Devices: Either P.F.C. Sigma or L.C.S. Complete knee replacement using the conventional surgical approach and manual surgical technique
Orthopaedic implants for total knee replacement implanted with a standard approach using standard instrumentation
Treatment: Devices: Either P.F.C. Sigma or L.C.S. Complete knee replacement using minimally invasive surgical approach and computer navigation
Orthopaedic implants for total knee replacement implanted with a minimally invasive approach and computer navigation
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Intervention code [1]
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0
Treatment: Devices
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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To Compare the Precision of the Long Leg Alignment Between the Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [1]
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Alignment will be measured on long leg weight bearing X-rays performed when the subject has full leg extension (+/-5 degrees)
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Timepoint [1]
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6 - 12 Weeks
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Secondary outcome [1]
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To Compare the Proportion of Procedures That Fall Within a Satisfactory Alignment Window Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [1]
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An independent radiographic observer will determine and record alignment.
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Timepoint [1]
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0
operative
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Secondary outcome [2]
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To Compare the Number of Optimal Implantations Achieved From Pre-op to 6-12 Weeks Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [2]
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Achieved alignment results will be measured on post-op X-rays taken at the time the subject has achieved full extension.
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Timepoint [2]
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4 - 12 Weeks
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Secondary outcome [3]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [3]
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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.
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Timepoint [3]
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0
Pre-op
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Secondary outcome [4]
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0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [4]
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The 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.
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Timepoint [4]
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4 Weeks
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Secondary outcome [5]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [5]
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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.
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Timepoint [5]
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8 Weeks
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Secondary outcome [6]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [6]
0
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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.
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Timepoint [6]
0
0
12 Weeks
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Secondary outcome [7]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [7]
0
0
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.
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Timepoint [7]
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0
6 Months
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Secondary outcome [8]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [8]
0
0
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.
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Timepoint [8]
0
0
1 year
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Secondary outcome [9]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [9]
0
0
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.
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Timepoint [9]
0
0
2 years
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Secondary outcome [10]
0
0
To Compare American Knee Society Knee Score Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [10]
0
0
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.
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Timepoint [10]
0
0
5 years
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Secondary outcome [11]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [11]
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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.
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Timepoint [11]
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0
pre-op
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Secondary outcome [12]
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0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [12]
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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.
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Timepoint [12]
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0
4 Weeks
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Secondary outcome [13]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [13]
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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.
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Timepoint [13]
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0
8 Weeks
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Secondary outcome [14]
0
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To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [14]
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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.
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Timepoint [14]
0
0
12 Weeks
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Secondary outcome [15]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [15]
0
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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.
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Timepoint [15]
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0
6 Months
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Secondary outcome [16]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [16]
0
0
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.
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Timepoint [16]
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1 Year
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Secondary outcome [17]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [17]
0
0
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.
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Timepoint [17]
0
0
2 years
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Secondary outcome [18]
0
0
To Compare Oxford Knee Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [18]
0
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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.
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Timepoint [18]
0
0
5 years
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Secondary outcome [19]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [19]
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0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [19]
0
0
pre-op
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Secondary outcome [20]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [20]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [20]
0
0
4 Weeks
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Secondary outcome [21]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [21]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [21]
0
0
8 weeks
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Secondary outcome [22]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [22]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [22]
0
0
12 weeks
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Secondary outcome [23]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [23]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [23]
0
0
6 months
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Secondary outcome [24]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [24]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [24]
0
0
1 year
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Secondary outcome [25]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [25]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [25]
0
0
2 years
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Secondary outcome [26]
0
0
To Compare WOMAC Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [26]
0
0
WOMAC is a patient reported outcome (PRO) that evaluates the condition of subject's with knee osteoarthritis, and includes pain (score range 0-20), stiffness (score range 0-8), and physical function (score range 0-68) of the joint, where a lower score indicates a better outcome. The WOMAC total score is a combination of the three domains (pain, stiffness, and physical function) with a range of 0-96.
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Timepoint [26]
0
0
5 years
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Secondary outcome [27]
0
0
To Compare VAS Pain Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [27]
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A 100-mm visual analog scale (VAS) was used to assess pain after the subject completes the 6-minute walk test. It asks the subject to place a vertical mark on a 100-mm horizontal line, with 'No pain' listed on the left (at 0 mm) and 'Very severe pain' labeled on the right (at 100 mm). The subject is instructed to indicate the amount of pain they feel in their knee joint.
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Timepoint [27]
0
0
pre-op
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Secondary outcome [28]
0
0
To Compare VAS Pain Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [28]
0
0
A 100-mm visual analog scale (VAS) was used to assess pain after the subject completes the 6-minute walk test. It asks the subject to place a vertical mark on a 100-mm horizontal line, with 'No pain' listed on the left (at 0 mm) and 'Very severe pain' labeled on the right (at 100 mm). The subject is instructed to indicate the amount of pain they feel in their knee joint.
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Timepoint [28]
0
0
4 Weeks
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Secondary outcome [29]
0
0
To Compare VAS Pain Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [29]
0
0
A 100-mm visual analog scale (VAS) was used to assess pain after the subject completes the 6-minute walk test. It asks the subject to place a vertical mark on a 100-mm horizontal line, with 'No pain' listed on the left (at 0 mm) and 'Very severe pain' labeled on the right (at 100 mm). The subject is instructed to indicate the amount of pain they feel in their knee joint.
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Timepoint [29]
0
0
8 Weeks
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Secondary outcome [30]
0
0
To Compare VAS Pain Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [30]
0
0
A 100-mm visual analog scale (VAS) was used to assess pain after the subject completes the 6-minute walk test. It asks the subject to place a vertical mark on a 100-mm horizontal line, with 'No pain' listed on the left (at 0 mm) and 'Very severe pain' labeled on the right (at 100 mm). The subject is instructed to indicate the amount of pain they feel in their knee joint.
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Timepoint [30]
0
0
12 Weeks
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Secondary outcome [31]
0
0
To Compare VAS Pain Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [31]
0
0
A 100-mm visual analog scale (VAS) was used to assess pain after the subject completes the 6-minute walk test. It asks the subject to place a vertical mark on a 100-mm horizontal line, with 'No pain' listed on the left (at 0 mm) and 'Very severe pain' labeled on the right (at 100 mm). The subject is instructed to indicate the amount of pain they feel in their knee joint.
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Timepoint [31]
0
0
6 months
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Secondary outcome [32]
0
0
To Compare Interface Radiographic Appearance Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [32]
0
0
An independent radiographer will observe and record alignment.
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Timepoint [32]
0
0
5 years
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Secondary outcome [33]
0
0
To Compare the Change From 6-12 Weeks & 5 Years on Long Leg Alignment.
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Assessment method [33]
0
0
An independent radiographer will observe and record alignment
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Timepoint [33]
0
0
5 years
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Secondary outcome [34]
0
0
To Compare 6 Minute Walk Test Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [34]
0
0
This score records the total distance walked (measured in feet) in 6 minutes (this time includes any time that the subject needs to stop and rest). Pre-operatively, the subject must complete both a practice walk and a test walk.
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Timepoint [34]
0
0
pre-op
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Secondary outcome [35]
0
0
To Compare 6 Minute Walk Test Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [35]
0
0
This score records the total distance walked (measured in feet) in 6 minutes (this time includes any time that the subject needs to stop and rest).
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Timepoint [35]
0
0
4 weeks
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Secondary outcome [36]
0
0
To Compare 6 Minute Walk Test Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [36]
0
0
This score records the total distance walked (measured in feet) in 6 minutes (this time includes any time that the subject needs to stop and rest).
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Timepoint [36]
0
0
8 weeks
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Secondary outcome [37]
0
0
To Compare 6 Minute Walk Test Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [37]
0
0
This score records the total distance walked (measured in feet) in 6 minutes (this time includes any time that the subject needs to stop and rest).
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Timepoint [37]
0
0
12 weeks
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Secondary outcome [38]
0
0
To Compare 6 Minute Walk Test Scores Between Subjects Who Have Undergone Minimally Invasive vs. Conventional Total Knee Arthroplasty.
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Assessment method [38]
0
0
This score records the total distance walked (measured in feet) in 6 minutes (this time includes any time that the subject needs to stop and rest).
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Timepoint [38]
0
0
6 months
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Eligibility
Key inclusion criteria
- Male or female subjects aged between 18 and 80 years inclusive.
- Subjects who require a primary total knee replacement and are considered by the
Investigator to be suitable for the specific knee prosthesis identified in the
protocol.
- Subjects who are able to give and have given voluntary, written informed consent to
participate in this clinical investigation.
- Subjects who have given consent to the transfer of his/her information to DePuy.
- 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.
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Minimum age
18
Years
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Maximum age
80
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Subjects who have a pre-operative limb deformity of equal to or greater than 10° varus
or 15° valgus as defined using the anatomical axis.
- Subjects who have a fixed flexion contracture of greater than 10º.
- Subjects who are clinically obese i.e. BMI =30.
- Subjects who have, in the opinion of the Investigator, an existing condition that
would compromise their participation and follow-up in this study.
- Female subjects who are pregnant or lactating.
- Subjects who are known drug or alcohol abusers or have a psychological disorder that
could affect follow-up care or treatment outcomes.
- Subjects who have participated in a clinical investigation with an investigational
product in the last 3 months.
- Subjects currently involved in any personal injury litigation, medical-legal or
worker's compensations claims.
- Subjects who have previously had a prosthetic knee replacement device (any type) of
the affected knee.
- Subjects who present with ankylosis of the hip joint on the side to be treated or
previous ipsilateral Upper Tibial Osteotomy/High Tibial Osteotomy.
- Subjects who require simultaneous bilateral total knee replacements.
- Subjects who have had a contralateral TKA performed less than six months before the
proposed TKA.
- Subjects who have had a contralateral TKA and that knee was previously entered in the
study.
- Subjects who, in the opinion of the surgeon, will require a contralateral TKA within 6
months of the index procedure.
- Subjects in whom the surgeon intends to implant a knee component that is not one of
those listed in Table 1.
- Subjects who have inflammatory arthritis.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 4
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Terminated
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/01/2005
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/12/2010
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Sample size
Target
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Accrual to date
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Final
86
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Recruitment in Australia
Recruitment state(s)
SA
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Recruitment hospital [1]
0
0
Sportsmed - Adelaide
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Recruitment postcode(s) [1]
0
0
5069 - Adelaide
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Recruitment outside Australia
Country [1]
0
0
United States of America
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State/province [1]
0
0
California
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Country [2]
0
0
United States of America
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State/province [2]
0
0
North Carolina
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Country [3]
0
0
United States of America
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State/province [3]
0
0
Pennsylvania
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Country [4]
0
0
New Zealand
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State/province [4]
0
0
Aukland 5
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
DePuy International
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The primary objective of this investigation is to compare the precision of long leg alignment
achieved by the two types of procedure. The secondary objectives of this investigation are
to:
Compare the accuracy of long leg alignment achieved by the two types of procedure.
Compare the number of optimal implantations achieved by the two types of procedure.
Compare the clinical performance of the knee replacement in subjects who have undergone one
of the two types of procedure.
Compare the functional outcome achieved by subjects who have undergone one of the two types
of procedure.
Compare the interface radiographic appearance 5 years post-operatively between the two types
of procedure.
Compare the accuracy and precision of long leg alignment achieved by the two types of
procedure 5 years post-operatively, i.e., at final follow-up and also the change in accuracy
and precision between the final follow-up and baseline.
Compare the Adverse Events experienced by the subjects who have undergone the two types of
procedure.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT00733330
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
0
0
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Address
0
0
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Country
0
0
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Phone
0
0
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Fax
0
0
Query!
Email
0
0
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Contact person for public queries
Name
0
0
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Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT00733330
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