When I was 13 I was diagnosed with abnormally formed L4 andL5 with a mild tethered spinal cord by A UC Davis Neurologist. No tx was recommended, when I became full height the numbness would go away. It did go away. I work as a Periodontist all day bending towards the left and rotating in surgery for hours at a time. After doing jump squats I hurt may back and had numbness down my left leg and shin. After 4 weeks and a medrol dosepak at day 5 symptoms started to go away.  Prior to my back I have had instability in my left leg which had improved with strengthening my inner thigh and glutes, I still get pain and instability with a lot of work or when I miss exercise. My left SI also hurts a lot. I want to avoid surgery and see if I’m a candidate for prolotherapy or other regenerative injections.  I’d like to be treated by an MD.