Moving one's joints through their full range of motion (ROM) is crucial for health and wellbeing. Those who are unable to do so have difficulty carrying out simple activities like walking or feeding themselves. Lost joint ROM is called a contracture. Osteoarthritis (OA) is the most common form of arthritis. About a third of people with knee OA develop knee flexion contractures (KFlCs), the inability to fully straighten the knee. Having a KFlC before a knee replacement is a big risk factor for redeveloping one after the operation. Many people with a KFlC in the knee for surgery also have a KFlC in the other knee. The investigators believe that this non-surgical KFlC increases the risk of re-developing a KFlC in the surgical knee after surgery by encouraging bending of the surgical knee to avoid one leg being shorter than the other. No one has ever looked at whether fixing this leg length difference using a shoe lift would prevent this problem and there is little information to help design such a study. Here the investigators will see if testing shoe lift use for preventing KFlC is feasible. The investigators hypothesis is that a study evaluating the benefit of using a shoe lift to correct leg length difference in the non-surgical knee is feasible.
Age range
18 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Pain assessed by visual analogue scale
Timeframe: Baseline (pre-op recruitment)
Pain assessed by visual analogue scale
Timeframe: 3 months post-knee replacement
Pain assessed by visual analogue scale
Timeframe: 6 months post-knee replacement
Pain assessed by visual analogue scale
Timeframe: 12 months post-knee replacement
Pain assessed by visual analogue scale
Timeframe: 24 months post-knee replacement
Pain assessed by pain subscales of Knee injury and Osteoarthritis Outcome Score (KOOS) and The Western Ontario and McMaster Universities Arthritis Index (WOMAC).
Timeframe: Baseline (pre-op recruitment)
Pain assessed by pain subscales of Knee injury and Osteoarthritis Outcome Score (KOOS) and The Western Ontario and McMaster Universities Arthritis Index (WOMAC).
Timeframe: 3 months post-knee replacement
Pain assessed by pain subscales of KOOS and WOMAC.
Timeframe: 6 months post-knee replacement
Pain assessed by pain subscales of KOOS and WOMAC.
Timeframe: 12 months post-knee replacement
Pain assessed by pain subscales of KOOS and WOMAC.
Timeframe: 24 months post-knee replacement
Function assessed by function subscales of KOOS and WOMAC.
Timeframe: 3 months post-knee replacement
Function assessed by function subscales of KOOS and WOMAC.
Timeframe: 6 months post-knee replacement
Function assessed by function subscales of KOOS and WOMAC.
Timeframe: 12 months post-knee replacement
Function assessed by function subscales of KOOS and WOMAC.
Timeframe: 24 months post-knee replacement