I never have heard the words "gluteal tendinopathy" come out of he mouth of any of my doctors. I did a lot of online research until I stumbled on that condition on the Cleveland Clinic website. I asked about it but that diagnosis was never confirmed by any doctor. I've been in and out of physical therapy for years. I finally asked my physical therapist what they were treating me for and she said gluteal tendinopathy. Three of the specialists I saw said I had sacrojoint inflammation and gave me injections for that but there was absolutely NO effect from them. Then I got 2 epidurals. Again, NO effect. The only injection that I could even tell I had was in my hip bursa and it gave me a little relief for 4 or 5 days. My pain doctor is now talking more epidurals and back surgery and I'm totally opposed to that. She said they don't use LDN in their practice but she would look into it.