Sure you can.
https://adaptivemartialarts.org/
As a teen (with still two normal legs) I practiced Kung-Fu and I intend to do this again now with a fused knee. But, on my own, I have enough theoretical skills from back the days to be my own trainer.
Martial arts is a very special type of physical exercise, because it always touches your spirit as well, is is abway of life. The fact, that this type of sports looks interesting to you is a sign , this is the right thing for you. Just do it.
Wow. Its nice to know there are adaptive martial arts. I saw a scene in the Action series Into the Badlands and I thought it was a physically fit martial artist just sitting on a wheelchair and pretending to fight, but with adaptive martial arts I now believe I can do it even though I have a disability.
Thank you very much @Sonderanfertigung
Thank you @Sonderanfertigung