Dear Sir/Madam, good to know that you are in regular followup with a rheumatologist
.As i can understand ,that your brother has got some arthritis
in his hip as well. Long standing arthritis can lead to joint deformities .If he is not regular with his treatment and exercise programme he can develop destruction of the hip joint which may lead to pain and restriction of movement at the hip joint. He may then have to undergo replacement surgeries at the hip joint to regain mobility.Long standing arthritis and treatment can lead to a condition called osteopenia/osteoporosis
, wherein the bones become very weak and may lead to fractures
. This condition is well known and a good rheumatologist will keep a watch on this complication and will treat it when appropriate.
One can lead a good quality life if he is regular with his treatment,goes for regular follow up,has a good exercise programme and has a good nutritious diet.
I am sure your brother will lead a normal healthy life if he sticks to the advice given by his doctor.Hope you find my answer helpful. Take care.