Sorry-

Wrist replacement surgery has a completely different protocol post operatively. You have at least 12 weeks of rehab and recovery. I would recommend that you find a CHT certified hand therapist in your area. You can find this at the International Hand Therapy website.

The ECU tendon can be treated for you with lots of ice and splinting to prevent end range motion. I would suggest that you are careful with early strengthening. Find out what your grip strength is.. if it under 45 lbs. then you cant really function without hurting it. You will see a great improvement in your function after 45 lbs. of grip. It is too early post operatively to do much except protect it.

I hope that helps.

Wendy