@crankyknee knees are really different than hips and lumbar surgery. Healing is very difficult after knee surgery. I think the surgeon once told me that there are a myriad of directions that the hips can go and that is why. But your hips are the biggest weight-bearing joints in your body and when compression happens, it can be very painful, especially when you try to move and there’s no cushion. My lumbar spine stopped being painful when my nerve endings were squished, and my vertebrae grew together. That was dangerous. But my body waited until I found the world’s best surgeon so I was happy!