Hi @
kurtuazja9281 welcome to MT!
I don't have any personal experience with the surgery your facing and I 100% support the other poster's advice to speak with your surgeon and the rest of your recovery team about participating in boxing and kickboxing after surgery. That being said, I do have lots of personal experience with this feeling:
they are sports that I love, without which I could not live
I'm making the assumption that you came here looking for some relief from the fear that you might not be able to participate in those sports again. That is a feeling I am intimately familiar with. I had a surgery where paralysis of my right leg was a possible "side effect" and re-injury resulting in paralysis was a likely scenario. I was terrified about not being able to participate in martial arts again. After some long and detailed talks with my surgeon and physical therapist, we came up with a plan to compensate for the new weaknesses with LOTS of strength training and following some very strict rules (in regards to how I move and do things I used to take for granted. i.e. bending over, getting up from the ground, literally ANYTHING related to changing direction quickly, etc.) to reduce the chance of re-injury. Those conversations helped A LOT with assuaging my fears. I'm hoping that having similar conversations with your surgeon and recovery team will help you too.
The other thing that helped me was thinking really deeply and honestly about what my life would be like if the worst case scenario did happen. For me, at that time, that was living in a world where I couldn't participate in martial arts the way that I had been (I was 13 lol). Taking the time to think about that helped me to realize some things:
1) I have been passionately in love with martial arts since I was 4 years old, living a life without it was totally out of the question.
2) I had personally trained with, seen, and been inspired by people who had overcome tremendously difficult situations to participate in martial arts i.e. paraplegia, loss of a limb, physical deformity, physical/emotional/verbal abuse, bullying, poverty, poor health etc. So why should I give up so easily?
3) Even if my participation in martial arts was different than it had been up to that point, I would not love it any less.
4) During recovery, I could delve deeply into the history, philosophy, and mythology of the martial arts to continue to feed that fire.
Studying history has taught me that the human spirit can overcome all challenges so long as it is strengthened by an indomitable will. Training in martial arts is a journey and no two people walk the same path, our obstacles and what's required of us to overcome them varies greatly but as a collective group we can relate to the struggle and willpower necessary to do it. On that note, I did a little searching and in the hopes of buoying your spirits a little bit I found a couple of videos of martial artists who were able to return to their training after lumbar fusion surgery:
I wish you all the best in your surgery, recovery, and hopeful return to the sports you love.