Both knees replaced, both shoulders (one reverse replacement) and lower spine fused. At a certain point, you and your doctor will know when that is the only option. Fingers so bad, the surgeon told me the only option was fusion of all fingers individually. He stated if you opt for this "if you fuse them, you lose them". Meaning they won't bend; I chose not to fuse. Some joints are now disjoined and very painful and misshaped. A few are so bad they look as though the bone could break through any time. Wishing you well during 2021 and God bless.