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Larger 5-year migration but similar polyethylene wear of cementless hemispherical cups with electrochemically applied hydroxyapatite (BoneMaster) coating compared with porous plasma-spray titanium: a randomized 5-year RSA study.
Acta Orthopaedica ( IF 2.5 ) Pub Date : 2022-07-14 , DOI: 10.2340/17453674.2022.3976
Sebastian Breddam Mosegaard 1 , Peter Bo Jørgensen 2 , Stig Storgaard Jakobsen 3 , Henrik Daugaard 4 , Kjeld Søballe 5 , Maiken Stilling 6
Affiliation  

BACKGROUND AND PURPOSE BoneMaster (BM) is a thin electrochemically applied hydroxyapatite (HA) implant coating marketed with expectations of improved osseointegration properties but less polyethylene (PE) wear. We compared the midterm cup migration and PE wear of cementless porous-coated hemispherical cups with and without BM. PATIENTS AND METHODS In this patient-blinded, randomized controlled trial, 53 patients with a mean age of 64 years (55-75) received total hip arthroplasty with a porous-coated (P) or porous and BoneMaster (PBM) coated Exceed cup and ArCom E1 infused PE. Patients were followed with RSA, Hip Osteoarthritis Outcome Score (HOOS), and Euro-Qol-5-3L (EQ-5D) at 3 and 6 months, and 1-, 2-, and 5-year follow-up. RESULTS At 5-year follow-up, total translation and maximum total point motion was 0.28 mm (95% CI 0.08; 0.47) and 0.52 mm (CI 0.12; 0.93) higher in the PBM group than in the P group. PE wear was comparable between PBM and P cups, and 2D wear rate from 1-year follow-up to last follow-up was 0.03 mm (CI 0.02-0.03). The 5-year anterior translation was 0.05 mm (CI -0.10 to 0.21) in the normal BMD group and 0.40 mm (CI 0.22-0.57) in the osteopenia group. INTERPRETATION At 5-year follow-up, Exceed cups in the PBM group migrated more than in the P group but the PE wear rate was low and similar. This study does not indicate any advantage of additional BoneMaster coating compared with porous coating alone on cementless hemispherical cups with regards to migration, polyethylene wear, and clinical outcomes.

中文翻译:

与多孔等离子喷涂钛相比,具有电化学应用的羟基磷灰石 (BoneMaster) 涂层的非骨水泥半球杯的 5 年迁移更大但聚乙烯磨损相似:一项为期 5 年的随机 RSA 研究。

背景和目的 BoneMaster (BM) 是一种薄的电化学应用的羟基磷灰石 (HA) 种植体涂层,其在市场上预期具有改善的骨整合性能但较少聚乙烯 (PE) 磨损。我们比较了有和没有 BM 的无骨水泥多孔涂层半球形杯的中期杯迁移和 PE 磨损。患者和方法 在这项患者双盲、随机对照试验中,53 名平均年龄 64 岁 (55-75) 的患者接受了全髋关节置换术,使用多孔涂层 (P) 或多孔和 BoneMaster (PBM) 涂层 Exceed 杯和ArCom E1 注入 PE。在 3 个月和 6 个月以及 1 年、2 年和 5 年随访时,对患者进行 RSA、髋骨关节炎结果评分 (HOOS) 和 Euro-Qol-5-3L (EQ-5D) 随访。结果 在 5 年的随访中,总平移和最大总点运动为 0.28 毫米(95% CI 0.08;0.47)和 0. PBM 组比 P 组高 52 mm (CI 0.12; 0.93)。PBM 和 P 罩杯的 PE 磨损相当,从 1 年随访到最后一次随访的 2D 磨损率为 0.03 mm (CI 0.02-0.03)。正常 BMD 组的 5 年前移为 0.05 mm(CI -0.10 至 0.21),骨质减少组为 0.40 mm(CI 0.22-0.57)。解释 在 5 年的随访中,PBM 组的 Exceed 杯比 P 组迁移更多,但 PE 磨损率低且相似。本研究并未表明在迁移、聚乙烯磨损和临床结果方面,与非骨水泥半球形臼杯上单独的多孔涂层相比,额外的 BoneMaster 涂层有任何优势。从 1 年随访到最后一次随访的 2D 磨损率为 0.03 mm (CI 0.02-0.03)。正常 BMD 组的 5 年前移为 0.05 mm(CI -0.10 至 0.21),骨质减少组为 0.40 mm(CI 0.22-0.57)。解释 在 5 年的随访中,PBM 组的 Exceed 杯比 P 组迁移更多,但 PE 磨损率低且相似。本研究并未表明在迁移、聚乙烯磨损和临床结果方面,与非骨水泥半球形臼杯上单独的多孔涂层相比,额外的 BoneMaster 涂层有任何优势。从 1 年随访到最后一次随访的 2D 磨损率为 0.03 mm (CI 0.02-0.03)。正常 BMD 组的 5 年前移为 0.05 mm(CI -0.10 至 0.21),骨质减少组为 0.40 mm(CI 0.22-0.57)。解释 在 5 年的随访中,PBM 组的 Exceed 杯比 P 组迁移更多,但 PE 磨损率低且相似。本研究并未表明在迁移、聚乙烯磨损和临床结果方面,与非骨水泥半球形臼杯上单独的多孔涂层相比,额外的 BoneMaster 涂层有任何优势。PBM 组中的 Exceed 杯比 P 组迁移更多,但 PE 磨损率低且相似。本研究并未表明在迁移、聚乙烯磨损和临床结果方面,与非骨水泥半球形臼杯上单独的多孔涂层相比,额外的 BoneMaster 涂层有任何优势。PBM 组中的 Exceed 杯比 P 组迁移更多,但 PE 磨损率低且相似。本研究并未表明在迁移、聚乙烯磨损和临床结果方面,与非骨水泥半球形臼杯上单独的多孔涂层相比,额外的 BoneMaster 涂层有任何优势。
更新日期:2022-07-14
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