Pilot RCT Comparing Effectiveness of Two Decision Aids for Hip and Knee Osteoarthritis

Study Overview
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Brief Summary
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This pilot RCT study is to examine the comparative effectiveness of two decision aids for hip and knee osteoarthritis.

Detailed Description
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This pilot RCT study is to examine the comparative effectiveness of two decision aids for hip and knee osteoarthritis. The vendors employ different design features (e.g. use of video for patient narratives, interactive values clarification exercise) and the study will examine the relative impact of the different features on decision quality. Eligible subjects will be randomly assigned to receive one of two decision aids before their upcoming clinic visit with a participating provider. Immediately before the visit, participants will complete a short questionnaire about the decision aid. This pilot study will assist with determining the potential difference between these two decision aids on improving knowledge and use of decision aids.

Official Title
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Pilot RCT Comparing Effectiveness of Two Decision Aids for Hip and Knee Osteoarthritis

Conditions
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Hip Osteoarthritis, Knee Osteoarthritis

Intervention / Treatment
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* Behavioral: Brief interactive decision aid
* Behavioral: Long video decision aid


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of either hip or knee osteoarthritis Scheduled visit with participating orthopedic surgeon Exclusion Criteria: Prior partial or total knee or hip replacement surgery Hip fracture or aseptic necrosis in the last 12 months Rheumatoid arthritis or psoriatic arthritis Unable to read or speak English

Ages Eligible for Study
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Minimum Age: 21 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: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Interactive decision aid<br>Group receiving brief interactive decision aid. The decision aids are the Shared Decision Points for hip and knee osteoarthritis from Healthwise | Behavioral: Brief interactive decision aid<br>* The Healthwise Shared Decision Points in booklet version for hip and knee osteoarthritis<br>|
| Experimental: Video decision aid<br>Group receiving long video decision aids. The decision aids are the hip or knee DVD and Booklets for hip and knee osteoarthritis from Health Dialog | Behavioral: Long video decision aid<br>* Health Dialog DVD and booklet decision aids for hip and knee osteoarthritis<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Hip and Knee Decision Quality Instruments Knowledge Subscale Scores | 5 multiple choice knowledge items from the Hip and Knee Decision Quality Instruments will be averaged into a knowledge subscale score (0-100%) with higher scores indicating higher knowledge. | In clinic, immediately before the first visit with surgeon | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Used the Decision Aid | 1 item asking patients how much they reviewed the program (none, some. most, all). The percentage who report viewing most or all will be calculated. | In clinic, immediately before the first visit with surgeon | 
| Percentage of Participants With a Clear Treatment Preference | 1 item assessing patient's treatment preference (surgery, non-surgical options, or not sure). The percentage who have a clear preference (either for surgery or non surgical options) will be calculated. | In clinic, immediately before the first visit with surgeon | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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decision making, decision aids, decision quality instruments, osteoarthritis, shared decision making