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J Arthroplasty. 2015 Dec;30(12):2260-3. doi: 10.1016/j.arth.2015.06.037. Epub 2015 Jun 23.

Survivorship and Complications of Revision Total Hip Arthroplasty with a Mid-Modular Femoral Stem.

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Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
Boston University School of Medicine, Lahey Clinic Hospital & Medical Center, Burlington, Massachusetts.


We retrospectively reviewed 161 revision THAs with diaphyseal fitting, mid-modular femoral components performed by ten surgeons at two academic medical centers. The average follow-up was 6.1 years. At final follow-up, 4 patients required re-revision for failure of the femoral component; 3 (2%) for aseptic loosening and 1 for mechanical failure of stem in setting of periprosthetic fracture. There were a total of 24 (14.9%) revisions for any reason, with the most common reason being septic failure (10 of 24). To our knowledge, this is the largest reported series of mid-term survivorship and complications of revision THA with mid-modular femoral components. Our results show that these stems have a low rate of aseptic loosening, subsidence, and mechanical failure.


Restoration Modular; loosening; mid-modular femoral stem; revision hip arthroplasty; subsidence

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