Effects of Vitamin D Supplementation on Postoperative Rehabilitation in Hip and Knee Osteoarthrit… (NCT06747559) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Effects of Vitamin D Supplementation on Postoperative Rehabilitation in Hip and Knee Osteoarthritis Patients
China300 participantsStarted 2025-01-01
Plain-language summary
The goal of this clinical trial is to learn if vitamin D supplementation affects postoperative rehabilitation in osteoarthritis patients who underwent joint arthroplasty. The main questions it aims to answer are:
Does oral vitamin D supplementation for a period of time after joint arthroplasty affect the postoperative recovery speed in patients who have vitamin D deficiency? Does oral vitamin D supplementation after joint arthroplasty affect the long-term recovery of joint functions in patients who have vitamin D deficiency?
Participants will:
Take vitamin D oral supplement every day for 3 months. Visit the clinic in 1, 3, 6, 12 months after joint replacement surgery for checkups and tests.
Who can participate
Age range
60 Years – 85 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Vitamin D deficiency (blood 25-hydroxyvitamin D value \< 20ng/ml);
. Meeting the diagnostic criteria for hip or knee osteoarthritis;
. Planning to undergo hip or knee arthroplasty after clinical assessment;
Questions worth asking your doctor
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.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
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.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Knee joint function
Timeframe: From enrollment to the end of treatment at 1 year
2
Hip joint function
Timeframe: From enrollment to the end of treatment at 1 year
3
Muscle strength
Timeframe: From enrollment to the end of treatment at 1 year
Trial details
NCT IDNCT06747559
SponsorSecond Affiliated Hospital, School of Medicine, Zhejiang University