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Exploring differences in knee function after surgery with different types of prostheses(Cruciate ligament retaining(CR) VS. posterior stabilizing(PS))
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| experimental group | Experimental | CR prosthesis for the left knee |
|
| control group | Active Comparator | PS prosthesis for the left knee |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| CR prosthesis | Device | For patients undergoing simultaneous bilateral knee arthroplasty, different prostheses (CR vs. PS) were randomized to the left or right knee. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Knee Society Score, KSS | Use of Knee Society Score scales for assessment. Including pain, mobility, stability, the patient's ability to walk, up and down the stairs, etc. on the assessment, 85-100 is excellent, 70-84 is good, 60-69 is pass, less than 60 is poor | 6 weeks, 3 months, 6 months, 12 months, 24 months after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| WOMAC | The Western Ontario and McMaster Universities Arthritis Index (WOMAC) is widely used in the evaluation of Hip and Knee Osteoarthritis. It is a composite outcome measure consisting of multiple measures: pain, stiffness and physical function. The scores for each subscale are summed up, with a possible score range of 0-20 for Pain, 0-8 for Stiffness, and 0-68 for Physical Function. Higher scores on the WOMAC indicate worse pain, stiffness, and functional limitations. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Zhihong Xu, Doctor | Contact | 13912988032 | xuzhihongjoint@hotmail.com | |
| Fei Yu, Doctor | Contact | 15151842733 | dr.feiyu@foxmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Zhihong Xu, Doctor | Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University | Nanjing | Jiangsu | 210008 | China |
IPD will be available by consulting the principal investigator
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| PS prosthesis | Device | For patients undergoing simultaneous bilateral knee arthroplasty, different prostheses (CR vs. PS) were randomized to the left or right knee. |
|
| Preoperative, 6 weeks, 3 months, 6 months, 12 months, 24 months after surgery |
| Stride length | The step length data were collected using a gait analysis instrument to analyze whether there was a difference between the right and left sides. | Preoperative, 6 weeks, 3 months, 6 months, 12 months, 24 months after surgery |
| Stride frequency | The step frequency data were collected using an instrument to analyze whether there were any differences. | Preoperative, 6 weeks, 3 months, 6 months, 12 months, 24 months after surgery |
| Percentage of stance phase | The stance phase is the time during which the lower limbs are in contact with the ground and are subjected to gravity, and accounts for 60% of the walking cycle. In walking disorders, the prolongation of the stance phase is often associated with impaired walking. | Preoperative, 6 weeks, 3 months, 6 months, 12 months, 24 months after surgery |