Abstract #0768

Patella Shape is Associated with ACL Injury and Changes in KOOS and T1rho Following ACLR

James R Peters¹, Nancy Obuchowski¹, Naveen Subhas¹, Valentina Pedoia², Sharmila Majumdar², Hollis Potter³, Matthew Koff³, Kimberly Amrami⁴, Cale Jacobs⁵, Carl Winalski¹, Kurt R Spindler¹, and Xiaojuan Li¹

¹The Cleveland Clinic Foundation, Cleveland, OH, United States, ²University of California, San Francisco, San Francisco, CA, United States, ³Hospital for Special Surgery, New York, NY, United States, ⁴Mayo Clinic, Rochester, MN, United States, ⁵Brigham and Women's Hospital, Boston, MA, United States

Synopsis

Keywords: Osteoarthritis, Bone, Patella, Shape, ACL, PTOA

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.

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