Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
EQ-5D |
General health will be assessed using the EQ-5D-5L questionnaire (5-level version), both the descriptive index and the EQ-VAS. This will also allow for a later cost-effectiveness analysis. Assessed at baseline, 3, 6 and 12 months. Will also be assessed after 24 months. |
Primary endpoint: Change from baseline to 12 months. |
|
Other |
Questions on function with Short Message Service (SMS) |
The subscale Sport/Rec from the KOOS |
Each week during the first 3 months and after that each month until the 12 months follow-up |
|
Other |
Questions on pain with Short Message Service (SMS) |
Pain intensity going up/down stairs and pain intensity during sitting/lying on a 11-point Numeric Rating Scale (NRS) |
Each week during the first 3 months and after that each month until the 12 months follow-up |
|
Other |
Physical activity level |
|
Primary endpoint: 12 months. Assessed at baseline, 3, 6 and 12 months. Will also be assessed after 24 months. |
|
Other |
Participation in sports (Tegner activity scale) |
|
Primary endpoint: 12 months. Assessed at baseline, 3, 6 and 12 months. Will also be assessed after 24 months. |
|
Other |
Global Perceived Effect (GPE) |
Answered on 7-point Likert scale. Assessed at 3, 6 and 12 months. Will also be assessed after 24 months. |
Primary endpoint: 12 months. |
|
Other |
Patient Acceptable Symptom State (PASS) |
"When you think of your knee function, will you consider your current condition as satisfying? By knee function, you should take into account your activities of daily living, sport and recreational activities, your pain and other symptoms and your quality of life". Answered by "yes" or "no". Assessed at 3, 6 and 12 months. Will also be assessed after 24 months. |
Primary endpoint: 12 months. |
|
Other |
Patient-reported treatment failure. |
Only answered by patients answering "no" to PASS. "Would you consider your current state as being so unsatisfactory that you consider the treatment to have failed?". Answered by "yes" or "no". |
Primary endpoint: 12 months. Will also be assessed after 24 months. |
|
Other |
Patient-reported mechanical symptoms related to the knee |
Patient-reported mechanical symptoms, i.e. catching and locking of the knee. Presence and frequency answered on 5-point scale. |
Assessed at baseline, 3, 6 and 12 months. |
|
Other |
Knee instability |
Patient-reported knee instability. Presence and frequency of knee instability answered on a 6-point scale and how much it affects activity level answered on a 6-point scale. |
Assessed at baseline, 3, 6 and 12 months. Will also be assessed after 24 months. |
|
Other |
Compliance with exercise (only for patients in the exercise group) |
The number of exercise sessions that the patient participate in out of the total 24 supervised sessions. |
Assessed at 3 months |
|
Other |
Patient-reported participation in post-surgery exercise (only for patients in the surgery group) |
Supervised or unsupervised and number of sessions. |
Assessed at 3 months |
|
Other |
Surgery and other treatments during follow-up |
Assessed at baseline, 3, 6 and 12 months by self-report and review of medical journals (surgery only). Other knee surgery will also be assessed at 24 months. |
Primary endpoint: 12 months. |
|
Other |
Pain intensity on a 11-point Numeric Rating Scale (NRS) |
Before and after each of the 24 supervised exercise sessions the patients will report their pain intensity. Only the patients in the group randomized to exercise and education. |
Assessed at 3 months |
|
Other |
Expanded version of the International Society of Arthroscopy, Knee Surgery and Orthopedic Sports Medicine (ISAKOS) classification of meniscal tears questionnaire |
Information about location of tear, type of tear and type of treatment (repair or resection) will be collected using an expanded version of the International Society of Arthroscopy, Knee Surgery and Orthopedic Sports Medicine (ISAKOS) classification of meniscal tears questionnaire by the operating surgeon. This will be supplemented with data from surgery reports. |
Day 1 after surgery |
|
Primary |
the Knee Injury and Osteoarthritis Outcome Score (KOOS4) |
The mean score for the KOOS subscales Pain, Symptoms, Function in sports and recreational activities, and Quality of life. All visits (baseline, 3, 6 and 12 months) will be included in the analysis. Will also be assessed after 24 months. |
Primary endpoint: Change from baseline to 12 months. |
|
Secondary |
The five KOOS subscales |
To allow for clinical in-depth interpretation, the primary outcome will be complemented by subscale scores from each of the five individual KOOS subscales. All visits (baseline, 3, 6 and 12 months) will be included in the analysis. Will also be assessed after 24 months. |
Primary endpoint: Change from baseline to 12 months. |
|
Secondary |
Western Ontario Meniscal Evaluation Tool (WOMET) |
WOMET is a meniscus specific patient-reported outcome measure that will be used to complement the KOOS score. All visits (baseline, 3, 6 and 12 months) will be included in the analysis. Will also be assessed after 24 months. |
Primary endpoint: Change from baseline to 12 months. |
|
Secondary |
Isometric muscle strength |
Isometric muscle strength will be assessed using the FysioMeter. Assessed at baseline, 3 and 12 months. |
Primary endpoint: Change from baseline to 3 months. |
|
Secondary |
The maximum number of knee-bends in 30s |
The maximum number of knee-bends in 30s is one of three measures of functional performance. All visits (baseline, 3, 6 and 12 months) will be included in the analysis. |
Primary endpoint: Change from baseline to 12 months. |
|
Secondary |
The one-leg hop for distance |
The one-leg hop for distance is one of three measures of functional performance. Assessed only at 12 months. |
Primary endpoint: 12 months. |
|
Secondary |
The 6 m timed hop |
The 6 m timed hop is one of three measures of functional performance. Assessed only at 12 months. |
Primary endpoint: 12 months. |
|
Secondary |
Adverse events |
Adverse events (AE) and serious adverse events (SAE) will be recorded at all follow-ups by asking the participants about potential AEs using open-probe questioning to ensure that all AEs are recorded. Furthermore, the medical records from the participating hospitals will be checked at the primary endpoint (12 months) for all AEs occurring from inclusion until the 12 months follow-up. AEs will be categorized into index knee or other sites and will be recorded and assessed for severity independent of whether or not there is a causal relationship with study treatments. Assessed at 3, 6 and 12 months. Will also be assessed after 24 months. |
Primary endpoint: 12 months. |
|
Secondary |
Structural knee joint changes |
Structural knee joint changes from baseline to 24 months will be assessed using the Anterior Cruciate Ligament OsteoArthritis Score (ACLOAS). |
Baseline to 24 months |
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