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Abstract #1679

Assessment of Osteonecrosis Following Instrumentation for Femoral Neck Fracture Using Contrast Enhanced MAVRIC Sequences

Nadja Alexandra Farshad-Amacker1, Matthew F. Koff2, Jonathan P. Dyke3, Lionel E. Lazaro4, Dean Lorich4, Hollis G. Potter2

1MRI Research Laboratory, Hospital for Special Surgery, New York, NY , United States; 2MRI Research Laboratory, Hospital for Special Surgery, New York, NY, United States; 3Department of Radiology, Weill Cornell Medical College, New York, NY, United States; 4Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, United States

Standardized radiographs markedly underestimate the incidence of osteonecrosis (ON) after fixation of femoral neck fractures. ON was identified using MAVRIC sequence in 75% of the patients, in 60% using FSE images and <1% using conventional radiographs. There was a significant underestimation of the identified ON volume using FSE compared to MAVRIC sequence (p=0.001).

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Keywords

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