Vertebral subluxation isn’t a thing. Chiropractors made it up. You might have had a dislocation, but subluxation is oogy boogy words.
Chiropractors DO have some evidence that they can provide short term, immediate pain relief for back pain. However, physical therapy and exercise after an adjustment is necessary or you have to see a Chiro forever.
Also a PT or DO can do the same kinds of manipulations with an actual medical degree.