How Can Thigh Pain Caused By An Old Injury Be Treated?

Hello Dr. I am, Richard Glad to have your expert advice on my situation, Here goes: Before my 2006 Total Left Hip Replacement, I also had injured my left thigh while dancing (unintentionally doing the splits).... and the pain was severe, never had medical attention for it thinking the pain would go away with time.... WRONG. Okay after hip surgery left thigh pain worsen, esp. on tennis courts, avid player cannot stop soooo I have been researching this for over 5 yrs. now. My surgeon said it might be
meralgia parthesis But Lateral femoral cutaneous nerve is exact pain What do you reccomend before I look into killing nerve. Thank you very much for your time, Richard 0000