Sharp thigh pain after hip replacement surgery & revision.

Good morning.
I had my left hip replaced June 29, 2021. I was recovering well from surgery for about 3 weeks, at which point I had severe pain in my thigh. I had not fallen (and still haven't yet). X-rays showed that my prothesis had slipped about 3/4" into my femur. On Aug. 17, 2021, I had hip replacement revision. My surgeon had not cemented the original prothesis in place, which I understood is relatively common, but he did cement my replacement in place.
Ever since the slippage, I have had pain in the mid-front of my thigh! Sometimes the pain is not as severe as other times, but it's always there! I've needed a cane to walk, and sometimes needed to revert back to using a walker a few times due to the pain.
I've undergone nerve-conductivity tests, Myofascial release and physical therapy, several injections and Rx's. I've had a Spinal Cord Stimulator put into my back which has only resulted in minimal pain relief. Meds and OTC pain relief are little help.
The pain occurs whenever I put weight on my left leg, try to lift my knee while sitting, moving it sideways, or catch my foot on something while walking. and so on.
It's been nearly 3 years with this pain! Any ideas on possible causes/ solutions?

Thank you!!!!