Periacetabular bone densitometry after total hip arthroplasty with highly porous titanium cups: a 2-year follow-up prospective study

被引:24
|
作者
Massari, Leo [1 ]
Bistolfi, Alessandro [2 ]
Grillo, Pier Paolo [3 ]
Borre, Alda [4 ]
Gigliofiorito, Gaetano [1 ]
Pari, Carlotta [1 ]
Francescotto, Andrea [5 ]
Tosco, Piermario [3 ]
Deledda, Davide [2 ]
Ravera, Laura [2 ]
Causero, Araldo [5 ]
机构
[1] Univ Hosp Ferrara S Anna, Ferrara, Italy
[2] Univ Hosp Turin Citta Salute & Sci Torino, Dept Orthopaed Traumatol & Rehabil, Clin 2, Turin, Italy
[3] Univ Hosp Turin Citta Salute & Sci Torino, Dept Orthopaed Traumatol & Rehabil, Clin 1, Turin, Italy
[4] Univ Hosp Turin Citta Salute & Sci Torino, Radiodiagnost Orthopaed Traumatol Ctr, Turin, Italy
[5] Univ Hosp Udine Santa Maria Misericordia, Udine, Italy
关键词
Cementless; DELTA-TT cup; Dual-emission X-ray absorptiometry (DEXA); Osseointegration; Total hip arthroplasty (THA); Trabecular Titanium; COATED ACETABULAR CUPS; MINERAL DENSITY; PROXIMAL FEMUR; REPLACEMENT; DEXA; STEM;
D O I
10.5301/hipint.5000509
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Introduction: 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). Methods: 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. Results: 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. Conclusions: 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.
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收藏
页码:551 / 557
页数:7
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