@soledad02 There is a variety in what physical therapists do. Sometimes the problem is tight fascia that causes a constriction. My PT does a procedure called myofascial release which helps me a lot. Here is our discussion on MFR:
Neuropathy - "Myofascial Release Therapy (MFR) for treating compression and pain"
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/
If you want to search for a certified MFR therapist in the John Barnes methods, please use this link:
http://mfrtherapists.com/
I also find articles at this website very informative.
MSK Neurology - "How to identify and treat lumbar plexus compression syndrome (LPCS)"
https://mskneurology.com/identify-treat-lumbar-plexus-compression-syndrome-lpcs/
These pelvic dysfunction problems may easily be confused with a spine problem as they produce similar symptoms. This is a very detailed article, but worth a read.

Jennifer