a friend of mine had both wrists keel-hauled at the mayo clinic and he's playing better than ever, he really shreds. but he has to pace himself and pay attention to how his hands feel.
i was only speaking to scale, not the brand, we've always just called it the gibson scale. the size of the neck figures in there too, but i don't even look at 25 1/4 guitars any more.
I had a friend who cut off about half of his left hand with a circular saw. He learned to play left-handed. Or you might consider keyboards. One of the best organ players I ever saw only had two fingers and a thumb. These are extreme cases, tho.
Thanks for the referral! I am guessing you are Sue's husband. I did not realize you were a musician.
I was a guitar prodigy in 1969, broke a finger on my LEFT hand and took up keyboards then. Played keys in the 80s in a jazz band. Picked up bass in the 90s, still played guitar. Now, my LEFT hand and specifically my middle finger, (recently jammed in a boating incident) feels arthritic, sore and numb sometimes...I am getting prepared for switching back to keyboards and have joined a rock band playing keyboards. I still play bass in a jazz quartet and rhythm guitar in a garage band.
My left hand, from time to time, gives me trouble. Most recently, trigger finger. I've gotten a Weissenborn acoustic lap steel and am learning to play slide guitar. Doesn't require nearly the dexterity in your left hand that regular guitar does. And the sound from a Weissenborn is just incredible.
that reminds me of james galbraith, a professional classical player i went to see. he has changed to playing the guitar like a cello, still picked, but upright like a cello. i can't remember what he said happened, but his wrists couldn't take the regular posture any more so he changed to upright.
27 years ago my right hand went numb. I discovered I had a very rare disease called: "acromegaly" It was causing my hands, feet, forehead, anything outward to grow. This caused the soft tissue in my wrists to grow as well, inhibiting blood flow. This was a tumor on my pituitary gland. Tumor was removed successfully and I've had no problems in 27 years. My hands became very large though and made it more difficult to play. I wouldn't fool around, I would have this checked out, to make sure it's nothing too serious! Goodluck! :)
Occupational therapy does a lot of work with hands, dexterity. Find out from your surgeon who is the best in the area - there is a huge amount of variability.