My Husband and I were in the same situation a few years ago. He was the only survivor in a really bad car crash, and His neck was injured. They had to put a steel plate in His neck and some screws in His arm.
I still cant think of Him lying in that hospital bed, without getting upset.
In a way its worse today than it was at the time - at the time I couldn't allow myself to fall apart because I knew He needed me and there was a child that needed looking after, but today, occasionally, if for some reason my thoughts wander that way, I have been known to start shaking, crying and quite literally clinging to Him for an extended periods of time (sometimes even hours).
When He began His recovery I worried how his male ego was going to take it, if it was bruised (and it probably was), thankfully, His pride prevented Him from showing it. The first two months post surgery were quite bad, by nature He is not an idle person, so it was quite hard for Him to understand that He has to be bed ridden. And the rest of that year wasn't exactly quite peachy either, but the wonderful, stubborn person He is, He preserved. He simply didn't have the choice - He had to rise above for His son and for me.
Obviously, during that year of recovery what we could do physically was curbed and maybe it seemed on the outside that there was a D/s power shift in our relationship, but there wasn't.
Him being Dominant and me being submissive is as constant to who we are as is the color of our skin or being male or female.
It didn't change how I viewed Him, it in no way diminished my respect and love for Him - but I was fearful if that will come across to Him, thankfully, it did.
Of course, we both breathed a sigh of relief when things went back to normal, but lets be clear on something, His ability to put me into chains and whip the hell out of my butt, is not what binds me to Him - the look in His eyes does; the look of love and the look of power. His ability to breath is also helpful, woe be Him if He dares to die on me,.
I am glad you are well and wish you speedy recovery,.