Medial meniscus extrusion (MME) is associated with tibial osteophyte width in elderly populations -the bunkyo health study

Abstract

Purpose: Medial meniscus extrusion (MME) has been suggested to increase the risk of not only cartilage damage but also meniscus damage. However, the developmental mechanism of MME is still unclear. A population based observational study, in which 710 people aged >50 years of age (62.3 years of age in average) who had no radiographic evidence of knee OA [Kellgren-Lawrence(KL) grade 0] and who underwent MRI of the knee, showed that the prevalence of any abnormality on MRI was 89% overall and osteophytes, but not cartilage damages, were the most common abnormality (74%) among all participants (BMJ 2012).