As already discussed, physiotherapy helps a lot to maintain the flexibility of the spine and joints. But once fused, there is no surgery to regain motion. If the spine is fused in an abnormal position causing difficulty in gait, corrective surgery can correct the deformity to a great extent in majority of cases. Hips and knees do very well after joint replacement. However prevention is always better than cure.

Physiotherapy will help your muscles stay active. With proper medicines physiotherapy is very important in ankylosing spondylitis. Once your acute phase ends then u can learn exercises and do regularly at home. But u need to keep getting checked at set intervals. Sports like swimming, basket ball can be a great help depending on your fitness and pain level. Stay active n do not give in to the condition.

If u R having ankylosing spondylitis then steroids and Saaz won't be of any use as it will not act over your spine. You need to visit your rheumatologist who will put u on NSAIDs after evaluating you and probably you may need biologics . Physiotherapy and exersizes specially swimming will also help. But first you need to be evaluated by a rheumatologist. Wishing you a speedy recovery.