The changes of chondromalacia patellae, visible in native X-ray technique, were compared with the arthroscopic as well as the intraoperative findings. A chondromalacia patellae, type 3, was always seen in native X-ray technique, a chondromalacia, type 2, was visible in 73%, and a chondromalacia, type 1, in 66%. The diagnosis was mostly based on qualitative changes. A quantitative analysis of the well known parameters did not show any direct correlation to the clinical symptoms. Subchondral defects of the corticalis, spotted demineralisation, and changes of bone structure at the insertion of the m. quadriceps were the main radiological features of chondromalacia patellae. There was a direct relation of post-traumatic defects and the incidence of chondromalacia patellae, but there was no relation of a consisting dysplasia of the knee joint and the incidence of a chondromalacia patellae.
|Translated title of the contribution
|Non-invasive radiological diagnostic of the chondropathia patellae
|Number of pages
|Published - 1981
ASJC Scopus subject areas