Are PRP injections useful in chronic coccydynia?

Hello doctor,

I am a 30-year-old male suffering from coccydynia for many years due to injury. I fell back on cement at that time. X-ray showed a hairline fracture. The doctor said it will heal. Use donut cushion but the pain did not relieve. My pain symptoms are localized pain only in the coccyx area. I cannot sit directly on the surface with a coccyx wedge cushion can sit for 30 minutes. Recently, I underwent dynamic coccyx X-rays and lumbar spine along with coccyx. MRI reports say mild retrolisthesis at the sacrococcygeal joint along with obtuse anterior angulation (120°) which is mildly increasing in sitting compared to standing. I have undergone physiotherapy, external and internal manipulation, and a steroid with numbing agent injection directly on the coccyx painful area without live X-ray alternative medicine, no relief. So, by seeing my reports please reply what is my coccyx condition name, whether it is hypermobile or rigid. Surgery is the only solution or can I try proper chiropractic adjustments which I did not get done or ganglion impair block and RF ablation, Prolo or PRP injections are useful in my case which is chronic. Please reply in detail.