You have had quite a complicated orthopedic history, with dislocations of both shoulders as well as prior surgeries performed on both surgeries quite a while ago. Therefore, you case almost certainly requires some input from an excellent orthopedic surgeon
, so I would recommend that you start by making an appointment to discuss these issues.
Generally speaking, shoulder arthritis is not initially treated with joint replacement. Usually, making sure that ant inflammatory medications are properly optimized is the first step, and this may be followed up with physical therapy or other exercises. There are also other surgical options short of joint replacement. These would include arthroscopic procedures in which small incisions are made and tools inserted into the joint space to help remove rough cartilage and scar tissue.
Depending on the details of your prior shoulder surgeries, and what previous treatments for your shoulder arthritis you have tried, your orthopedic doctor
should be able to give you the best advice about what options are reasonable and safe for you.
You will also likely need to see your primary care doctor
, given your long list of other medical problems, prior to any surgery just to make sure that proceeding with a surgery would be safe.