Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Baseline (the day before surgery) |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 2 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 8 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 24 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 36 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 48 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 60 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Hour 72 after surgery |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
The day of discharge |
|
Primary |
Pain score |
Assess the pain intensity with numerical rating scale both at rest and motion in each knee. A 11 point (0-10) numerical rating scale defines 0 as no pain and 10 as the worst pain imaginable, |
Month 3 after surgery |
|
Secondary |
Knee range of motion |
Maximal range of motion at both continuous passive motion and active motion will be assessed with protractor (degrees) |
Baseline (the day before surgery) |
|
Secondary |
Knee range of motion |
Maximal range of motion at both continuous passive motion and active motion will be assessed with protractor (degrees) |
Hour 24 after surgery |
|
Secondary |
Knee range of motion |
Maximal range of motion at both continuous passive motion and active motion will be assessed with protractor (degrees) |
Hour 72 after surgery |
|
Secondary |
Knee range of motion |
Maximal range of motion at both continuous passive motion and active motion will be assessed with protractor (degrees) |
the day of discharge |
|
Secondary |
Knee range of motion |
Maximal range of motion at both continuous passive motion and active motion will be assessed with protractor (degrees) |
Month 3 after surgery |
|
Secondary |
Knee muscle power |
Both adduction and abduction muscle power on both knees will be assessed with Commander Echo Algometry (pounds) |
Baseline (the day before surgery) |
|
Secondary |
Knee muscle power |
Both adduction and abduction muscle power on both knees will be assessed with Commander Echo Algometry (pounds) |
Hour 24 after surgery |
|
Secondary |
Knee muscle power |
Both adduction and abduction muscle power on both knees will be assessed with Commander Echo Algometry (pounds) |
Hour 72 after surgery |
|
Secondary |
Knee muscle power |
Both adduction and abduction muscle power on both knees will be assessed with Commander Echo Algometry (pounds) |
the day of discharge |
|
Secondary |
Knee muscle power |
Both adduction and abduction muscle power on both knees will be assessed with Commander Echo Algometry (pounds) |
Month 3 after surgery |
|
Secondary |
Six minute walk test |
To assess the walk ability (6-minute walk distance) before and after TKA surgery (meters) |
Baseline (the day before surgery) |
|
Secondary |
Six minute walk test |
To assess the walk ability (6-minute walk distance) before and after TKA surgery (meters) |
Hour 24 after surgery |
|
Secondary |
Six minute walk test |
To assess the walk ability (6-minute walk distance) before and after TKA surgery (meters) |
Hour 72 after surgery |
|
Secondary |
Six minute walk test |
To assess the walk ability (6-minute walk distance) before and after TKA surgery (meters) |
the day of discharge |
|
Secondary |
Six minute walk test |
To assess the walk ability (6-minute walk distance) before and after TKA surgery (meters) |
Month 3 after surgery |
|
Secondary |
Single leg stance test |
To assess the stance ability and static postural and balance control on one leg without help either with eyes opened or closed before and after TKA surgery (assessed as seconds) |
Baseline (the day before surgery) |
|
Secondary |
Single leg stance test |
To assess the stance ability and static postural and balance control on one leg without help either with eyes opened or closed before and after TKA surgery (assessed as seconds) |
Hour 24 after surgery |
|
Secondary |
Single leg stance test |
To assess the stance ability and static postural and balance control on one leg without help either with eyes opened or closed before and after TKA surgery (assessed as seconds) |
Hour 72 after surgery |
|
Secondary |
Single leg stance test |
To assess the stance ability and static postural and balance control on one leg without help either with eyes opened or closed before and after TKA surgery (assessed as seconds) |
the day of discharge |
|
Secondary |
Single leg stance test |
To assess the stance ability and static postural and balance control on one leg without help either with eyes opened or closed before and after TKA surgery (assessed as seconds) |
Month 3 after surgery |
|
Secondary |
Functional questionnaires |
Functional pain scale will be assessed with Western Ontario and McMaster Universities Osteoarthritis Index, Brief pain inventory (BPI) short form, and Lower extremity functional scale |
Baseline (the day before surgery) |
|
Secondary |
Functional questionnaires |
Functional pain scale will be assessed with Western Ontario and McMaster Universities Osteoarthritis Index, Brief pain inventory (BPI) short form, and Lower extremity functional scale |
the day of discharge |
|
Secondary |
Functional questionnaires |
Functional pain scale will be assessed with Western Ontario and McMaster Universities Osteoarthritis Index, Brief pain inventory (BPI) short form, and Lower extremity functional scale |
Month 3 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Baseline (the day before surgery) |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 2 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 8 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 24 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 36 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 48 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 60 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Hour 72 after surgery |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
the day of discharge |
|
Secondary |
Adverse events |
Adverse events will be assessed with items including nausea, vomiting, somnolence, dizziness, urinary retention, skin itch, respiratory depression, and lower limb weakness, numbness, and allodynia |
Month 3 after surgery |
|