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Abstract #1661

The Effect of Opening Wedge High Tibial Osteotomy on Patellar Cartilage Using DGEMRIC Score as an Indicator of Cartilage Health

Kenard Agbanlog1, Agnes G. d'Entremont1, Simon Horlick2, Mojieb Manzary2, Trevor Stone2, Robert G. McCormack2, David R. Wilson2

1Mechanical Engineering, University of British Columbia, Vancouver, British Columbia, Canada; 2Orthopedics, University of British Columbia, Vancouver, British Columbia, Canada

Opening wedge high tibial osteotomy (OWO) is known to change the kinematics of both the tibiofemoral and patellofemoral joints; however, it is not known if this change in kinematics is associated with a change in patellar cartilage health over time. Delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) was used as an indicator of cartilage health before surgery, 6 months post-op, and 12 months post-op (n=14). Our results show that there is a statistically significant increase in dGEMRIC T1 score between 6 and 12 months post-op. This may indicate that there is no adverse effect on patellar cartilage health following OWO.