Abstract #1257
Magnetic Resonance Imaging Findings in a Dual Taper, Modular Total Hip Arthroplasty
Matthew F. Koff 1 , Stephanie L. Gold 1 , Brett Lurie 1 , Danyal H. Nawabi 1 , Geoffrey Westrich 1 , and Hollis G. Potter 1
1
Hospital for Special Surgery, New York, NY,
United States
Wear of at the neck-stem junction in modular total hip
arthroplasty is associated with adverse local tissue
reaction (ALTR) and premature implant failure. This
study identified MR imaging findings characteristic of a
failing modular THA system and determined which are most
indicative of an ALTR, as confirmed by histology
following revision arthroplasty. A majority (60%) of
symptomatic hips had a moderate to severe ALTR. Synovial
thickness was positively correlated with histologic
scoring (
=
0.734, p<0.0003). Using MRI to measure synovial
thickness may identify a premature failing hip and help
guide surgical management in patients with ALTR.
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