I agree with Dinesh Verma. Also to keep in mind is your treatment goal. Do you only want to treat symptoms, e.g. pain? If so, you might do well with laser in the short term. But long term I believe one must address the underlying condition. US with proper parameters can increase extensibility of dense tissue (scar tissue such as tendon adhesions, etc) & combined (immediate) with stretching & followed by active exs can increase ROM - pain reduction is then secondary benefit. Low intensity pulsed US promotes healing of soft tissue & bone - again pain reduction is a secondary benefit. I have seen impressive softening of scar tissue in the hand using 830 nm laser diode at 30 J per cm sq. I have not been able to achieve good results on deeper tissue problems.