If not a physio, perhaps a sports physio, or a personal trainer with rehab specialty

Why? Because Sarcopenia prevention is now being iterated as vitally important in prime years when we can gain more strength and subsequently muscle to prevent deterioration as we age. The fact that you have had surgery predisposes you to greater changes of diminished function.

Additionally, we don't know what you have lost along the way, were you relatively high functioning previously? Do you want to optimize your current function?

Best to do what you can to maintain strength/function