Flexor tendon repair and scar tissue (Flexor Tenolysis)

I am 47 M

I had flexor tendon repair for my right hand little and ring finder and unfortunately developed adhesions or scar tissue after surgery, and cannot move my PIP and DIP joints, Dr reviewed ultrasound and found that there is no rupture and proposed flexor Tenolysis to move the tendon again.

Any suggestions or alternative treatments that I can do, I also did IASTM and shock wave without success.