ArticleJournal of orthopaedic case reports2026
Short-term Outcomes of Impaction Bone Grafting Technique with a Collared Fully Hydroxyapatite-Coated Stem in Revision Total Hip Arthroplasty: A Case Series.
Article in Journal of orthopaedic case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Introduction: Impaction bone grafting (IBG) with cemented stems in revision total hip arthroplasty (THA) is a well-established method, but reports using cementless stems are scarce. The purpose of this study is to report short-term outcomes of six revision THAs using the IBG technique with a collared fully hydroxyapatite (HA)-coated stem. Materials and Methods: From 2014 to 2021, six joints (median age 64.3 years; median follow-up 4.5 years) were revised for aseptic loosening (n = 5) or septic loosening (n = 1). All cases used the IBG technique with a collared fully HA-coated stem (CORAIL or UNIVERSIA). Full weight-bearing was allowed post-operative day 1. Outcomes included the Japanese Orthopedic Association Score, stem subsidence, and radiographic remodeling. Results: Median surgical time was 127 min; blood loss was 855 mL. No complications (infection, polyethylene wear, loosening, or dislocation) occurred. The JOA score improved from 63 (preoperatively) to 95 (final follow-up). Median stem subsidence was 1.4 mm (1-3 mm), with no case >5 mm. Radiographs showed no radiolucent lines and remodeling in all cases. Computed tomography (CT) images of one case confirmed bone ingrowth between the stem and the compressed allograft. Conclusion: Short-term outcomes of revision THA with IBG using a collared fully HA-coated stem are favorable. This technique, supported by radiographic and CT evidence of bone ingrowth, is a useful and effective treatment option for femoral component revision.
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