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Acetabular Debonding: An Investigation of Porous Coating Delamination in Hip Resurfacing Arthroplasty
المؤلفون المشاركون
Gaillard-Campbell, Dani M.
Gross, Thomas P.
Robinson, Eric
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-11-01
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Background.
To date, there have been no published investigations on the cause of acetabular debonding, a rare failure phenomenon in metal-on-metal hip resurfacing where the acetabular porous coating delaminates from the implant while remaining well fixed to the pelvic bone.
Purposes.
This study aims to summarize the current understanding of acetabular debonding and to investigate the discrepancy in rate of debonding between two implant systems.
Patients and Methods.
To elucidate potential causes of debonding, we retrospectively analyzed a single-surgeon cohort of 839 hip resurfacing cases.
Specifically, we compared rate of debonding and manufacturing processes between two implant systems.
Results.
Group 1 experienced significantly more cases of debonding than Group 2 cases (4.0% versus 0.0%, p value<0.0001).
Implant manufacturing processes differed in surface coating, heat treatment, postmanufacturing treatment, and apex thickness.
Debonded implants were more likely to have missed RAIL guidelines (p=0.04).
Conclusions.
We identified implant system, postoperative time, and acetabular component placement as variables contributing to rate of debonding.
We recommend minimizing acetabular inclination angle according to RAIL guidelines.
Further, we evaluated manufacturing differences between the two implant systems but did not have access to proprietary data to identify the cause of debonding.
Both implants met ASTM standards, yet only the Group 1 implant debonded.
This suggests the second implant had greater fatigue shear strength.
Because the Group 2 implant achieved a more durable interface that did not debond, we suggest the ASTM F1160 standard for fatigue shear strength be increased to that achieved by its manufacturer.
Level of Evidence II.
A retrospective evaluation of prospectively collected data.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Robinson, Eric& Gaillard-Campbell, Dani M.& Gross, Thomas P.. 2018. Acetabular Debonding: An Investigation of Porous Coating Delamination in Hip Resurfacing Arthroplasty. Advances in Orthopedics،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1122618
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Robinson, Eric…[et al.]. Acetabular Debonding: An Investigation of Porous Coating Delamination in Hip Resurfacing Arthroplasty. Advances in Orthopedics No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1122618
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Robinson, Eric& Gaillard-Campbell, Dani M.& Gross, Thomas P.. Acetabular Debonding: An Investigation of Porous Coating Delamination in Hip Resurfacing Arthroplasty. Advances in Orthopedics. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1122618
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1122618
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