Vitamin D to strengthen the thigh after ACL surgery
Treatments studied
Part of Injuries & trauma clinical trials.
This Phase 2 study tests whether taking vitamin D can improve thigh (quadriceps) muscle strength after ACL reconstruction. It targets people with low vitamin D levels that persist after surgery and weaker thigh strength on the injured side.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You’re 18 to 40 years old and had a knee ACL injury on one side (unilateral)
- Your injury matches a sports-activity level score of 7 on the Tegner scale
- Your blood vitamin D level was under 20 ng/mL before surgery, and stays under 20 ng/mL at 4 months after ACL reconstruction
- At about 4 months after surgery, your thigh strength on the injured side is under 70% compared with the other leg
- You’ve never had major problems or surgery in either knee before this ACL injury
- You must be able to follow the rehab plan closely after surgery
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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