Our study also shows that returning to sport with poor muscle strength and returning to sport too early are important factors. Hege Grindem More Quotes by Hege Grindem More Quotes From Hege Grindem If they aim to return to sports with frequent pivoting, participation should be delayed until at least nine months have passed from surgery and they have regained thigh muscle strength comparable to the uninjured leg. Hege Grindem health-news