Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The purpose of this prospective, randomized study was to compare pain, functional outcome and ranges of motion of the knees in patients receiving either a standard posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.
The main goals of total knee arthroplasty are pain relief and improvement of function and range of motion. The purpose of this study was to compare ranges of motion of the knees in patients receiving either a standard posterior crucaite-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| NexGen CR knee prosthesis | Active Comparator | side of knee operated with total knee replacement with Nexgen CR prosthesis |
|
| NexGen CR-Flex knee prosthesis | Active Comparator | side of knee operated with total knee arthroplasty using Nexgen CR-flex prosthesis |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Total knee replacement with NexGen CR knee prosthesis | Device | comparison of functional outcome in patients receiving either NexGen posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Knee Society Knee Score | change in knee score will be compared with baseline and follow up of 3 years. The knee society knee score range from 0 to 100 points, 100 being the best possible outcome. Baseline-NexGen (CR) knee socre:29 points Baseline-NexGen (CR-Flex) knee socre:29 points Follow up of 3 years-NexGen (CR) knee socre: 93.7 points Follow up of 3 years-NexGen (CR-Flex) knee socre: 93.9 points | baseline and 3 years |
Not provided
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Young-Hoo Kim, MD | Ewha Womans University Mokdong Hospital | Study Director |
Not provided
Not provided
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| FG000 | NexGen CR and CR-flex Knee Prosthesis | The NexGen posterior cruciate-retaining total knee arthroplasty prosthesis (NexGen CR Prosthesis; Zimmer)) on one side and The NexGen posterior cruciate-retaining flex total knee arthroplasty prosthesis (NexGen CR-Flex; Zimmer) on the other side |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| BG000 | NexGen CR and CR-flex Knee Prosthesis | The NexGen posterior cruciate-retaining total knee arthroplasty prosthesis (NexGen CR Prosthesis; Zimmer)) on one side and The NexGen posterior cruciate-retaining flex total knee arthroplasty prosthesis (NexGen CR-Flex; Zimmer) on the other side |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Change in Knee Society Knee Score | change in knee score will be compared with baseline and follow up of 3 years. The knee society knee score range from 0 to 100 points, 100 being the best possible outcome. Baseline-NexGen (CR) knee socre:29 points Baseline-NexGen (CR-Flex) knee socre:29 points Follow up of 3 years-NexGen (CR) knee socre: 93.7 points Follow up of 3 years-NexGen (CR-Flex) knee socre: 93.9 points | Posted | Mean | Standard Deviation | scores on a scale | baseline and 3 years |
|
Not provided
Not provided
Not provided
| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | NexGen CR and CR-flex Knee Prosthesis | The NexGen posterior cruciate-retaining total knee arthroplasty prosthesis (NexGen CR Prosthesis; Zimmer)) on one side and The NexGen posterior cruciate-retaining flex total knee arthroplasty prosthesis (NexGen CR-Flex; Zimmer) on the other side |
Not provided
Not provided
First, the knee scoring system is prone to intraobserver variability. Second, we had no interobserver variability and this could have lead to bias in interpreting radiographic results.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Young-Hoo Kim, MD | Ewha Womans University School of Medicine | 822-26505900 | younghookim@ewha.ac.kr |
Not provided
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| ID | Term |
|---|---|
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
Not provided
Not provided
| ID | Term |
|---|---|
| D019645 | Arthroplasty, Replacement, Knee |
| ID | Term |
|---|---|
| D019643 | Arthroplasty, Replacement |
| D001178 | Arthroplasty |
| D019637 | Orthopedic Procedures |
| D013514 | Surgical Procedures, Operative |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
|
| Total knee replacement(TKR) with Nexgen CR-flex | Device | TKR using Nexgen CR-flex implant |
|
|
| Participants |
|
| Age Continuous | Mean | Standard Deviation | years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
| Units | Counts |
|---|
| Participants |
|
|
| 0 |
| 54 |
| 0 |
| 54 |
Not provided
Not provided
| D019651 | Plastic Surgery Procedures |
| D019919 | Prosthesis Implantation |