In the event of one-sided abrasion: biological prosthesis

180,000 artificial knee joints are implanted in Germany per year. An alternative to this procedure is a biological prosthesis, which Professor Lill strongly recommends in the event of a one-sided abrasion of the knee joint.

Most artificial knee joints are so-called surface replacements. This means that the articular surface of the femur and then tibial plateau are replaced by metal implants. A plastic disc is then placed between the metal elements. Even though the results of artificial knee surgery are often highly satisfactory, the alternative biological prosthesis is still often the better choice.


Biological knee prosthesis

A biological prosthesis does not need a metal artificial joint, which means that the original knee joint remains intact. Furthermore, unlike the traditional knee prosthesis, no bone is removed and no alien material is used. When using a biological prosthesis, the bone surface in the area of extensive cartilage damage (osteoarthritis) is removed. This stimulates the development of replacement cartilage.


Professor Lill recommends

Biological prosthesis surgery is an arthroscopic operation (joint arthroscopy). The procedure creates a layer of replacement cartilage that often lasts for many years. In some cases the surgery can be repeated after a few years time. It is often necessary to adjust cases of “genu valgum” (knock knees) and “genu varum” (bandy legs) during biological prosthesis surgery to optimise the load ratio within the joint. This ensures that the newly generated cartilaginous tissue is not excessively stressed by a one-sided load within the joint. After surgery the affected joint has to be disburdened for a few weeks. The patient needs to engage in passive movement exercises on a CPM bar on a daily basis to support the regeneration of cartilage.


Would you like to find out more about biological knee prosthesis surgery at OrthoCenter Professor Lill? Arrange an appointment with Professor Lill straight away! The renowned specialist will gladly inform you about the advantages and risks of a biological prosthesis during an extensive consultation session.