[The Wiberg Forms of Patellae--are they disposing to early arthrosis? (author's transl)].

Autopsy examinations of patellae revealed that there is no statistical relationship between osteoarthritis and the different Wiberg and Baumgartl types of patella. Wiberg's and Baumgartl's types of patellae appear to be physiological form variants and without importance in the development of femoropatellar osteoarthritis. However, other morphological findings in the femoropatellar compartment, such as a ridge on the medial femoral condyle or a cartilagineous ridge on the medial part of the joint surface of the patellae may represent a prearthrotic factor.