here what I found..
I have had an Evan's osteotomy done on both of my feet for PTTD. The purpose of it was to straighten the medial column (outside of the foot) by adding a small wedge of bone (mine were about 8 mm) to the calcaneus. I had the posterior tibial tendon repaired as well. My dr was possibly going to do a gastroc recession, but once he did the first two procedures, he decided I didn't need it. I don't know about the Cotton osteotomy, so can't answer anything for you there. The recovery is long for these osteotomies. Most people who have them are non weightbearing for 6-8 wks, then in a boot for another 4 wks, bearing weight as tolerated. PT usually follows for a period of time. So, it's pretty major surgery, but I've found it to be helpful in my case.
and this
SOFT TISSUE PROCEDURES
Ankle Stabilization
Brostrum Repair
Evans Procedure
Ankle Arthroscopy with Thermal Capsular Shift
Ankle Arthroscopy with Repair of Osteochondral Defect
Peroneal Tendon Repair
Posterior Tibial Tendon Repair with or without a Calcaneal Osteotomy
Tendon Transfers
Repair Achilles Tendon with or without Partial Excision of Calcaneus
Tarsal Tunnel Surgery
Our standard protocol for soft tissue procedures are:
Follow up to the office 7 to 10 days after surgery. Keep the postoperative dressing dry. Elevate the leg for comfort. Ice for comfort.
3 weeks in a fiberglass cast nonweightbearing. We do allow you to stand on the cast but no walking is allowed. Crutches or a walker or a wheelchair is needed.
3 weeks in a fiberglass cast weightbearing. Full weightbearing with no assistive devices is allowed. Excercising on a stationary bicycle or a healthrider is allowed. Weight training limited to upper body excercises are allowed as well.
3 weeks in a removable cast or boot walker. This is taken on and off to shower/bathe, sleep, and to drive. Motion is encouraged when the boot is taken off. Remind the nurse to consider a compression stocking if you are having trouble with swelling.
3-6 weeks of Physical Therapy. Careful attention to bring back strength, motion, and flexibility. We have several customized protocols for your rehabilitation. If appropriate for your type of surgery this protocol will be provided to your therapist.