The patella rests inside a groove on top of the femur known as the trochlear groove. If you bend and straighten your knee, the patella moves forwards and backwards within this groove. You might need to remain during the hospital for one or two nights immediately after your knee replacement surgical procedure. https://kneecapreplacement88653.blog4youth.com/34780855/the-smart-trick-of-knee-cap-replacement-that-nobody-is-discussing