Asalamu Alaikum,

I am sorry to hear about your injury and the subsequent hardships it has caused. And thank you for your question, which I am sure many people will also have. Allah is the most Merciful and the religion of Islam is meant to be easy and not bring us hardships. This may seem contradictory as one enters the faith and has a steep learning curve to face. But once one is settled in the religion, the wisdom of all the guidance Allah has given us becomes more clear and the ease becomes apparent.

As for your situation, Allah, having created us and all that is in our lives, knows that sometimes concessions need to be made. And being the Most Merciful, He has made allowances for such difficult situations. For example, when we are traveling, because of the stress and hardship of travel, Allah has made it so that we can shorten and combine our prayers (More about that here: http://aboutislam.net/counseling/ask-the-scholar/shortening-and-combining-prayers-while-traveling/ ). Similarly, for those who cannot kneel or bend their feet in the ways needed to pray, then a concession is made for that as well.

For you, in your situation with your foot, you may stand for the first part of the prayer and bow for the second part as usual. But when it comes time to kneel and sit, since this is painful and may even be detrimental for you, you may use a chair to sit and bow down in. Try to make your head go as low as you can, simulating the prostration. Then sit up and bow again, then make the tashahhud (the part where the one praying lifts the pointer finger on the right hand) while sitting in the chair, at the appropriate time. Then when the time to stand comes again, stand up again. And so on.

I hope this helps. If you need more clarification, please let us know. And keep up your great work in learning the prayer! All the best. Salam.

Also find more at these links:

http://aboutislam.net/reading-islam/islam-is-easy-dont-make-it-difficult/

http://aboutislam.net/reading-islam/living-islam/when-new-to-islam-dont-sweat-the-small-stuff/