How do doctors replace damaged bones in joints, such as knees or hips?

Total joint replacement is a surgical procedure in which parts of an arthritic or damaged joint are removed and replaced with a metal, plastic, or ceramic device called a prosthesis. The prosthesis is designed to replicate the movement of a normal, healthy joint.

Explanation:

Source: https://orthoinfo.aaos.org/en/treatment/total-joint-replacement/#:~:text=Total%20joint%20replacement%20is%20a,of%20a%20normal%2C%20healthy%20joint.

THAT is from a website. Reword it if you need it to be your own :)

~Hope this helps!

Total joint replacement is a surgical procedure in which parts of an arthritic or damaged joint are removed and replaced with a metal, plastic, or ceramic device called a prosthesis. The prosthesis is designed to replicate the movement of a normal, healthy joint.

Explanation: