Abstract

Motivation: PTOA progression is poorly understood and there is a relative dearth of data available on the impact of the patellofemoral joint on PTOA. Goal(s): The goal of this study was to elucidate the relationship between PTOA, knee function, and patella shape and to investigate possible indicators for PTOA progression. Approach: A shape model of the patella was used to explore longitudinal shape changes and associations with injury, sex, KOOS, and cartilage T1rho in 67 patients following ALR and 11 controls. Results: Ipsilateral patella shape was found to be associated with ACL injury, sex, and the degenerative changes accompanying PTOA. Impact: This study suggests patella shape may play a role in ACL injury and PTOA. These results should inform future biomechanical studies of the knee joint which could lead to the development of preventative orthoses and novel interventions.