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Bone & Joint Research
Vol. 7, Issue 5 | Pages 357 - 361
1 May 2018
The biological response to laser-aided direct metal-coated Titanium alloy (Ti6Al4V)
Shin T Lim D Kim YS Kim SC Jo WL Lim YW
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Objectives

Laser-engineered net shaping (LENS) of coated surfaces can overcome the limitations of conventional coating technologies. We compared the in vitro biological response with a titanium plasma spray (TPS)-coated titanium alloy (Ti6Al4V) surface with that of a Ti6Al4V surface coated with titanium using direct metal fabrication (DMF) with 3D printing technologies.

Methods

The in vitro ability of human osteoblasts to adhere to TPS-coated Ti6Al4V was compared with DMF-coating. Scanning electron microscopy (SEM) was used to assess the structure and morphology of the surfaces. Biological and morphological responses to human osteoblast cell lines were then examined by measuring cell proliferation, alkaline phosphatase activity, actin filaments, and RUNX2 gene expression.

The Bone & Joint Journal
Vol. 99-B, Issue 6 | Pages 741 - 748
1 Jun 2017
Mid-term results of the BIOLOX delta ceramic-on-ceramic total hip arthroplasty
Lee YK Ha YC Yoo J Jo WL Kim K Koo KH
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Aims

We conducted a prospective study of a delta ceramic total hip arthroplasty (THA) to determine the rate of ceramic fracture, to characterise post-operative noise, and to evaluate the mid-term results and survivorship.

Patients and Methods

Between March 2009 and March 2011, 274 patients (310 hips) underwent cementless THA using a delta ceramic femoral head and liner. At each follow-up, clinical and radiological outcomes were recorded. A Kaplan-Meier analysis was undertaken to estimate survival.

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