As you know praying 5 times a day is obligatory for all muslims(women get a few days off per month). Now, this is not that case in which you were unconscious, which is a special case for men.
You had your nerves and you had to pray, ideally you were supposed to just make prayer in your mind! if you could not move any part of your body.
If you could move your hands, than you just mimic as much as can in that position(that too if doctors allow you to move your hands).
As a general rule of thumb, in any medical condition, we are supposed to be as close to the proper praying method as we can. Like if we can sit, we will still stand up, and will sit only when going for sajdah etc. If we can't stand, we will sit and will try to do proper sajdah if we can. Getting as close as possible without hurting yourself is the key.
Without being unconscious, we are not allowed to leave our obligatory prayers. If a man goes unconscious, prayers in that period of unconsciousness are waived and he does not need to make them up later when he wakes up.
So, you should make up your Missed prayers now.
Here is a good reading on the topic.