I broke my Achilles tendon - had to have a FULL reconstruction - they took a tendon that used to help waggle my big toe (the muscle is in my leg) wrapped around my heel and back up my leg and rebuilt my achilles around that - now I have a muscle that used to wiggle my toe than moves my entire foot.
How hard was it to relearn? at first I'd try to move my toe and something else would move, it felt weird - but doctor's orders were essentially don't do anything for 3 months, bed rest and keep the leg raised - all the muscles turned to jelly ... then months of physio, in the pool and then in the gym - at that point, once I started moving stuff again my brain had adjusted - that muscle moves my foot, not my toe - I didn't have to do anything explicitly to make it change, it just did
How hard was it to relearn? at first I'd try to move my toe and something else would move, it felt weird - but doctor's orders were essentially don't do anything for 3 months, bed rest and keep the leg raised - all the muscles turned to jelly ... then months of physio, in the pool and then in the gym - at that point, once I started moving stuff again my brain had adjusted - that muscle moves my foot, not my toe - I didn't have to do anything explicitly to make it change, it just did