I would suggest you to do a repeat MRI
to check how bad is his knee. X ray
just shows gap reduction but we also need to figure out the condition of ligaments and cartilage
. I am afraid that due to lack of ligament repair he has developed problem in knee.I would also suggest you to show it to a arthroscopic surgeon and see if there is any possibility of knee surgery
. He may still get his ligament repair done to prevent further loss of cartilage.