Upcoming Midfoot fusion

Hello. I am a 77 year old woman with severe osteoarthritis in my feet. I also had it in my knees and had those both replaced 15 years ago. Spinal arthritis led me to have a lumbar fusion 20years ago. I have been walking very flat-footed and wobbly for ten years because of the foot pain. I now also have a peroneal tendon tear on my right foot. I’ve been seeing a podiatry surgeon who has recommended tendon repair and triple fusion on my right foot. I have scheduled the surgery for July 24 and am very anxious about it. I have read some positive testimonials about outcomes of the fusion surgery, but also some negatives regarding results. I have prepared my home, gathered various mobility devices, and arranged for post-surgery help. But I’m still not convinced that I should go through with it because I’m concerned about long-term results. If anyone in this site has had experience with either the torn peroneal tendon repair and/or the midfoot fusion surgery, I would so appreciate any sharing of your experience. Thanks and I look forward to hearing from you.