Everyone has covered everything quite well so far. I will repeat those things that I agree with for completeness.
- CTS is often misdaignosed. Radiculopathies can be caused anywhere upstream from the wrist due to nerve and/or vascular entrapment or compression. Starting at the spine, subluxation or a herniated disc could be reducing the space of the intervertebral foramen, causing nerve compression.
Next in line is the often forgotten ANT and MID scalenes entrapment point. Strip them both, and teach diaphragmatic breathing. Downstream from that is the pec minor point, strip both pecs and teach facilitation and strengthening excercises for scapular retractors, and stretches for pecs.
The upper arm has no pinch points, everything is soft and has a large amount of play.
Next is where the nerves run under pronator teres. Remember how you'd break a pencil in grade school by weaving it under and over the first three fingers and smacking it on the desk. same thing. it runs under, then over. Strip pronator teres while the client does active movement. Shorten it first, get a bite on teres with your reinforced thumbs, and have them move through supination, wrist extension, and finally elbow extension. Start position is the opposite of these.
I would do no more than these three points in one session, and see how it goes. If there are decreased pain and paresthesias on reassessment, continue like this. Even if the source is upstream, this may have caused actual inflammation in the tunnel, so work here some too. Think PROM, lymph drainage, and joint mobes, esp to each carpal you can get your fingers on.
Be careful about how you tell your client this, but the surgical procedure of cutting the flexor retinacula will usually lead to more inflammation, and more scar tissue, and then a further decrease in space in the tunnel. Which makes it worse than they started off as. Go figure.
I love the concoction someone suggested. I don't get into anything but water and hydrotherapy, so maybe I could start learning about these fancy oils and such.
Hope this helps, I can clarify and expand on anything if necessary.
Pearl