完整後設資料紀錄
DC 欄位語言
dc.contributor.authorChen, Chih-Yuen_US
dc.contributor.authorHuang, Shu-Weien_US
dc.contributor.authorSun, Jui-Shengen_US
dc.contributor.authorLin, Shin-Yiingen_US
dc.contributor.authorYu, Chih-Shengen_US
dc.contributor.authorPan, Hsu-Pinen_US
dc.contributor.authorLin, Ping-Hungen_US
dc.contributor.authorHsieh, Fan-Chunen_US
dc.contributor.authorTsuang, Yang-Hweien_US
dc.contributor.authorLin, Feng-Hueien_US
dc.contributor.authorYang, Rong-Senen_US
dc.contributor.authorCheng, Cheng-Kungen_US
dc.date.accessioned2018-08-21T05:54:04Z-
dc.date.available2018-08-21T05:54:04Z-
dc.date.issued2017-06-01en_US
dc.identifier.issn1350-4533en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.medengphy.2017.02.015en_US
dc.identifier.urihttp://hdl.handle.net/11536/145541-
dc.description.abstractThe dynamic hip screw (DHS) is commonly used in the treatment of femoral intertrochanteric fracture with high satisfactory results. However, post-operative failure does occur and result in poor prognosis. The most common failure is femoral head varus collapse, followed by lag screw cut-out through the femoral head. In this study, a novel-designed DHS with two supplemental horizontal blades was used to improve the fixation stability. In this study, nine convention DHS and 9 Orthopaedic Device Research Center (ODRC) DHSS were tested in this study. Each implant was fixed into cellular polyurethane rigid foam as a surrogate of osteoporotic femoral head. Under biaxial rocking motion, all constructs were loaded to failure point (12 mm axial displacement) or up to 20,000 cycles of 1.45 kN peak magnitude were achieved, whichever occurred first. The migration kinematics was continuously monitored and recorded. The final tip-to-apex distance, rotational angle and varus deformation were also recorded. The results showed that the ODRC DHS sustained significantly more loading cycles and exhibited less axial migration in comparison to the conventional DHS. The ODRC DHS showed a significantly smaller bending strain and larger torsional strain compared to the conventional DHS. The changes in tip-to-apex distance (TAD), post-study varus angle, post-study rotational angle of the ODRC DHS were all significantly less than that of the conventional DHS (p < 0.05). We concluded that the ODRC DHS augmented with two horizontal wings would increase the bone-implant interface contact surface, dissipate the load to the screw itself, which improves the migration resistance and increases the anti-rotational implant effect. In conclusion, the proposed ODRC DHS demonstrated significantly better migration resistance and anti-rotational effect in comparison to the conventional DHS construct. (C) 2017 IPEM. Published by Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectFemoral intertrochanteric fractureen_US
dc.subjectCut-outen_US
dc.subjectLag screwen_US
dc.subjectDynamic hip screwen_US
dc.titleWing-augmentation reduces femoral head cutting out of dynamic hip screwen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.medengphy.2017.02.015en_US
dc.identifier.journalMEDICAL ENGINEERING & PHYSICSen_US
dc.citation.volume44en_US
dc.citation.spage73en_US
dc.citation.epage78en_US
dc.contributor.department友訊交大聯合研發中心zh_TW
dc.contributor.departmentD Link NCTU Joint Res Ctren_US
dc.identifier.wosnumberWOS:000401876100009en_US
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