had an injury that required a total reverse shoulder replacement. No weight supporting on shoulder through at least week 18 and then only if the Dr says ok. riding the trike seems possible in another week (8). If displaced it means another surgery to repair. Physical therapy is going well and ahead of schedule. so maybe a hope for riding sooner than later. If you have it done do what the medical people say and then you will be good for a long time. By the way I'm 72.