Knee pain changes people slowly. At first, it is just discomfort after walking too long.Then stairs become annoying.Then travel becomes tiring.Then sleep starts getting interrupted. Many people live in this “half-functional” state for years before anyone seriously discusses surgery. And once knee replacement surgery enters the conversation, a different kind of pressure appears: “Should I do it now?”“Am I waiting too long?”“What if surgery makes things worse?”“Are there altern