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
More than 70,000 total knee replacement procedures are performed annually in Canada, representing a growth of 17% over the past 5 years, with further increases anticipated due to an aging population. While total knee replacement offers improved quality of life for patients and is cost effective for the healthcare system, 20% of patients routinely report dissatisfaction with the procedure. Patient dissatisfaction has been strongly linked to unmet expectations of outcomes after the surgery, especially with respect to physical activity. Counselling patients on appropriate expectations has been suggested as a means to improve satisfaction. Recently, our group has developed a tool to predict the functional ability of an individual patient after total knee replacement. This tool employs machine learning to classify patients as more likely to maintain or improve function, based on a functional test performed in clinic while wearing a sensor system around each knee. Implementing this tool in clinic pre-operatively could assist in setting appropriate expectations for each patient. Our primary objective is to compare patient satisfaction scores at one year after total knee replacement in patients who were informed of their specific expected functional outcome compared to patients who were not informed of their predicted functional outcome. We hypothesize that patients who are given an informed expectation will have higher satisfaction scores. This in turn may decrease health system costs associated with additional clinic visits from dissatisfied patients.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Outcome Prediction Group | Other | Patient-Specific Prediction of Functional Outcome and Standard Pre-Operative Total Knee Arthroplasty Information |
|
| Standard Care Group | Other | Standard Pre-Operative Total Knee Arthroplasty Information |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Patient-Specific Prediction of Functional Outcome | Other | Information sheet that describes whether a patient is more likely to improve on or maintain their current preoperative function. |
| Measure | Description | Time Frame |
|---|---|---|
| Patient Satisfaction | Patients will complete the Knee Society Score (KSS) questionnaire. The primary outcome of interest from the KSS is the satisfaction section. There are five questions related to satisfaction, each with five options ranging from very dissatisfied (0 points) to very satisfied (8 points). | Pre-operation, 3-months, and 1-year post-operation |
| Measure | Description | Time Frame |
|---|---|---|
| Cost Effectiveness | Patient-reported cost diary | At 2-weeks, 6-weeks, 3-months, and 1-year post-operation |
| Measure | Description | Time Frame |
|---|---|---|
| Local Knee Inflammation | Imaging and tissue biopsies to grade level of inflammation of the knee | Pre-operation and 1-year post-operation (imaging). Intra-operative (tissue biopsies) |
| Knee Injury and Osteoarthritis Outcome Score (KOOS) |
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Brent Lanting | Lawson Health Science Centre | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| London Health Science Centre | London | Ontario | N6A5A5 | Canada |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Members of the care team and investigator will be blinded from knowing which study arm the patient is in and what their predicted functional ability is, to ensure standard of care is not influenced in any way.
| Standard Pre-Operative Total Knee Arthroplasty Information | Other | Standard of care information that is routinely provided at patient preadmission appointments. |
|
Patient-reported questionnaire to assess pain, stiffness, and function.
| Pre-operation and 1-year post-operation |
| Measure of Intermittent and Constant Osteoarthritis Pain (ICOAP) | Patient-reported questionnaire to assess experience with constant and intermittent pain. | Pre-operation and 1-year post-operation |
| Patient Global Assessment (PGA) | Patient-reported scale question to measure global disease activity on a range of 0 (doing very well) to 10 (doing very poorly) | Pre-operation and 1-year post-operation |
| Global Rating of Change Scale (GROC) | Patient-reported questionnaire to assess self-perceived improvement. | Pre-operation and 1-year post-operation |
| EuroQuol 5D (EQ-5D) | Patient-reported questionnaire to assess health-related quality of life and is used for economic analysis. | Pre-operation and 1-year post-operation |
| UCLA Activity Score | Patient-reported questionnaire to assess activity from range of 1 (completely wholly inactive) to 10 (regularly participates in impact sports). | Pre-operation and 1-year post-operation |
| ID | Term |
|---|---|
| D017060 | Patient Satisfaction |
| D010549 | Personal Satisfaction |
| ID | Term |
|---|---|
| D000074822 | Treatment Adherence and Compliance |
| D015438 | Health Behavior |
| D001519 | Behavior |
Not provided
Not provided