Abstract #4183

Assessment of Ankle Condition After Fixator Distraction for OA with T1 MRI: 8-10 Year Follow-Up

Daniel R Thedens ¹ , Mai P Nguyen ² , Annunziato Amendola ² , and Douglas R Pedersen ²

¹ Radiology, University of Iowa, Iowa City, IA, United States, ² Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, United States

The purpose of this study was to non-invasively assess the joint condition of subjects who underwent joint-preserving distraction arthroplasty in an 8-10 year follow-up study. Six subjects were evaluated and compared with T1, T2, and quantitative T1 lower case Greek rho

imaging, showing outcomes with a range of cartilage and subchondral bone inhomogeneities. The results demonstrated that T1 lower case Greek rho

has value to gauge cartilage and joint condition in longitudinal studies of OA progression and treatment planning.

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