Evaluation of a Preoperative Education in Total Knee Arthroplasty

Study Overview
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Brief Summary
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The benefit of preoperative rehabilitation treatment combining physiotherapy and targeted education for patient undergoing Total Knee replacement (TKR) is now well known. Thus, there is lack of validated booklet containing evidence based informations. Our aim is to assess the impact of an evidence based education pre-operative booklet on patient's knowledge and beliefs. The secondary objectives are to assess the impact of the booklet on patient's satisfaction on the information received, the length of stay in orthopedic surgery and the transfer rate to rehabilitation wards. To show a difference of 2 points on the knowledge score (range 0-10) between the two groups, with a = 0.05 and a power of 90%, we considered that 44 patients are needed. The evaluations will take place at baseline, the day before surgery and 6 weeks post-surgery on knowledge and beliefs scores at each visit and on a satisfaction score on the last one. Quantitative data will be compared between groups by the Kruskal-Wallis and qualitative parameters via Fisher exact test. The study protocol was approved by the local Ethic Committee.

Detailed Description
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The benefit of preoperative rehabilitation treatment combining physiotherapy and targeted education for patient undergoing Total Knee replacement (TKR) is now well known. Thus, there is lack of validated booklet containing evidence based informations. Our aim is to assess the impact of an evidence based education pre-operative booklet on patient's knowledge and beliefs. The secondary objectives are to assess the impact of the booklet on patient's satisfaction on the information received, the length of stay in orthopedic surgery and the transfer rate to rehabilitation wards. To show a difference of 2 points on the knowledge score (range 0-10) between the two groups, with a = 0.05 and a power of 90%, we considered that 44 patients are needed. The evaluations will take place at baseline, the day before surgery and 6 weeks post-surgery on knowledge and beliefs scores at each visit and on a satisfaction score on the last one. Quantitative data will be compared between groups by the Kruskal-Wallis and qualitative parameters via Fisher exact test. The study protocol was approved by the local Ethic Committee.

Conditions
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Knee Osteoarthritis (Knee OA)

Intervention / Treatment
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* Other: Kruskal-Wallis and qualitative parameters


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age ranging from 55 to 75 Planned total knee arthroplasty Exclusion Criteria: Age under 55 or above 75 Patients institutionalized Patients who have received a total knee arthroplasty of the ipsilateral knee Patient not affiliated to a social security scheme (beneficiary or assignee) Patients with chronic inflammatory rheumatism Cognitive and behavioral issues Disorders of understanding and expression of the French language TKR on complex knee

Ages Eligible for Study
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Minimum Age: 55 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Kruskal-Wallis and qualitative parameters<br>The evaluations will take place at baseline, the day before surgery and 6 weeks post-surgery on knowledge and beliefs scores at each visit and on a satisfaction score on the last one. Quantitative data will be compared between groups by the Kruskal-Wallis and qualitative parameters via Fisher exact test | Other: Kruskal-Wallis and qualitative parameters<br> <br> |
| Other: Fisher exact test<br>The evaluations will take place at baseline, the day before surgery and 6 weeks post-surgery on knowledge and beliefs scores at each visit and on a satisfaction score on the last one. Quantitative data will be compared between groups by the Kruskal-Wallis and qualitative parameters via Fisher exact test | Other: Kruskal-Wallis and qualitative parameters<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| knowledge score |  | at day 1 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| pain |  | Baseline | 
| Primary disability |  | Baseline | 
| Duration of hospitalization surgery |  | at day 1 | 
| Transfer rate in acute care and rehabilitation, and length of stay |  | at week 6 | 
| Patient's overall satisfaction towards the information received |  | at week 6 | 
| Patient's confidence in its own ability to achieve rehabilitation |  | at day-1 | 
| Patient's knowledge and beliefs about his condition |  | Baseline, at day-1 and week 6 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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• Knee osteoarthritis, Total knee arthroplasty, Selfcare, Booklet, Rehabilitation