Broken 101,
Yes your description is sufficient. Given that the fibula fracture did not need fixation is a good thing - your body is very good at fixing bones but takes a few years to finish completely; however disruption and fixation of the distal tibio-fibula joint and hence ankle mortise poses the biggest hurdle to returning to a sport such as mixed martial arts. Overall I would be fairly confident that you will return in time (how longs a piece of string???) but I guess your surgeon is the most qualified and positioned to give you your answer. Hit him up at your next review.
Good luck buddy.