title: Survivorship and Complications of Revision Total Hip Arthroplasty with a Mid-Modular Femoral Stem.
abstract: 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.
authors.affiliation: Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
authors.forename: Aldo M
authors.initials: AM
authors.lastname: Riesgo
authors.affiliation: Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
authors.forename: Jason P
authors.initials: JP
authors.lastname: Hochfelder
authors.affiliation: Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
authors.forename: Edward M
authors.initials: EM
authors.lastname: Adler
authors.affiliation: Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
authors.forename: James D
authors.initials: JD
authors.lastname: Slover
authors.affiliation: Boston University School of Medicine, Lahey Clinic Hospital & Medical Center, Burlington, Massachusetts.
authors.forename: Lawrence M
authors.initials: LM
authors.lastname: Specht
authors.affiliation: Department of Orthopaedic Surgery, NYU Langone Medical Center-Hospital for Joint Diseases, New York, New York.
authors.forename: Richard
authors.initials: R
authors.lastname: Iorio
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods / Q000706:statistics & numerical data; D018483:Diaphyses; D005260:Female; D005269:Femur / Q000601:surgery; D006622:Hip Prosthesis / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D057068:Periprosthetic Fractures / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: Restoration Modular; loosening; mid-modular femoral stem; revision hip arthroplasty; subsidence