My 9 year old iguanas leg is hurt!?

He has no m.b.d. I had him x-rayed on his leg.Looked good. Its not broken but he walks funny like favoring one side. I checked his leg really good and found out to me like he pulled his muscle bad its all bunched up in a not close to his pelvic area. It might be ripped. Seems like his muscle is not there next to his nee.I had him checked out but im going to another vet. I know he is in pain...any help anyone Thank you...