Knee replacement surgery is indicated for people whose knees have become deformed or damaged due to accident or severe osteoarthritis. The operation involves replacing the bottom surface of the thigh bone and the top surface of the shin bone with metal. The knee cap is removed, and the space between the bones is filled with a plastic spacer. Knee replacement allows patients to walk without risk of further bone deterioration. In the US, knee replacement surgery costs about $40,000, and in the UK, about £14,000. Abroad, orthopedic surgeons can perform the operation for one half or one third of the cost.

In Mexico, knee replacement surgery costs only $13,000 or £9,000. Orthopedic surgeons in Mexico are among the best in Latin America, and most of the hospital staff can communicate in English. The materials used for knee replacement are the same as those used in the US and the UK, so patients can expect to receive a durable knee. Patients can stay in Mexico for post-operative therapy to work with experienced, well-trained physical therapists.
 
Colombia is another country that offers affordable knee replacement surgery. The price of a new knee in Colombia is only $6,500 or £4,500, and since the cost of living is inexpensive, patients can stay in Colombia while they recuperate.