Trabecular Titanium is an advanced cellular solid structure, composed of regular multiplanar hexagonal interconnected cells that mimic the morphology of the trabecular bone. This biomaterial demonstrated improved mechanical properties and enhanced osteoinduction and osteoconduction in several in vitro and in vivo studies. The aim of this study was to assess Trabecular Titanium osseointegration by measuring periacetabular changes in bone mineral density (BMD) with dual-emission X-ray absorptiometry (DEXA).
89 patients (91 hips) underwent primary total hip arthroplasty (THA) with acetabular Trabecular Titanium cups. Clinical (Harris Hip Score (HHS), SF-36) and radiographic assessment were performed preoperatively, and postoperatively at 7 days and at 3, 6, 12 and 24 months. DEXA analysis was performed only postoperatively, using the BMD values measured at 7 days as baselines.
After an initial decrease from baseline to 6 months, BMD increased and progressively stabilised in all 3 regions of interest (ROIs). Median (IQR) HHS and SF-36 increased from 48 (39-62) and 49 (37-62) preoperatively to 99 (96-100) and 86 (79-92) at 24 months, indicating a considerable improvement in terms of pain relief, functional recovery and quality of life. BMD patterns and radiographic evaluation showed evident signs of periacetabular bone remodelling and osseointegration; all cups were stable at the final follow-up without radiolucent lines, loosening or osteolysis. No revisions were performed.
After an initial reduction in periacetabular BMD, all 3 ROIs exhibited stabilisation or slight recovery. Although clinical outcomes and functional recovery proved satisfactory, longer follow-ups are necessary to assess this cup long-term survivorship.
Post author correction
Article Type: ORIGINAL RESEARCH ARTICLE
Article Subject: Hip replacement
AuthorsLeo Massari, Alessandro Bistolfi, Pier Paolo Grillo, Alda Borré, Gaetano Gigliofiorito, Carlotta Pari, Andrea Francescotto, Piermario Tosco, Davide Deledda, Laura Ravera, Araldo Causero
- • Accepted on 01/03/2017
- • Available online on 01/07/2017
This article is available as full text PDF.
- Massari, Leo [PubMed] [Google Scholar] 1, * Corresponding Author (firstname.lastname@example.org)
- Bistolfi, Alessandro [PubMed] [Google Scholar] 2
- Grillo, Pier Paolo [PubMed] [Google Scholar] 3
- Borré, Alda [PubMed] [Google Scholar] 4
- Gigliofiorito, Gaetano [PubMed] [Google Scholar] 1
- Pari, Carlotta [PubMed] [Google Scholar] 1
- Francescotto, Andrea [PubMed] [Google Scholar] 5
- Tosco, Piermario [PubMed] [Google Scholar] 3
- Deledda, Davide [PubMed] [Google Scholar] 2
- Ravera, Laura [PubMed] [Google Scholar] 2
- Causero, Araldo [PubMed] [Google Scholar] 5
University Hospital of Ferrara “S. Anna”, Ferrara - Italy
Department of Orthopaedics, Traumatology and Rehabilitation, Clinic II, University Hospital of Turin “Città della Salute e della Scienza di Torino”, Turin - Italy
Department of Orthopaedics, Traumatology and Rehabilitation, Clinic I, University Hospital of Turin “Città della Salute e della Scienza di Torino”, Turin - Italy
Radiodiagnostic Orthopaedic Traumatology Centre, University Hospital of Turin “Città della Salute e della Scienza di Torino”, Turin - Italy
University Hospital of Udine “Santa Maria della Misericordia”, Udine - Italy