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https://www.readbyqxmd.com/read/28777383/3rd-generation-ceramic-on-ceramic-cementless-total-hip-arthroplasty-a-minimum-10-year-follow-up-study
#1
Yeong J Lau, Shashank Sarmah, Johan D Witt
INTRODUCTION: 3rd generation ceramic bearings were introduced in total hip arthroplasty (THA) with the potential to have better mechanical strength and wear properties than their predecessors. At present, there are few studies looking at the long-term results of this latest generation of ceramic bearings.The purpose of our study was to investigate the long-term clinical and radiographic results of 3rd generation ceramic-on-ceramic THA and the incidence of ceramic specific complications such as squeaking and bearing surface fracture...
July 29, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28775226/commentary-on-the-medium-term-results-of-ceramic-on-polyethylene-zweym%C3%A3-ller-plus-total-hip-arthroplasty
#2
C H Yan
No abstract text is available yet for this article.
August 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28773095/in-vivo-damage-of-the-head-neck-junction-in-hard-on-hard-total-hip-replacements-effect-of-femoral-head-size-metal-combination-and-12-14-taper-design
#3
Massimiliano Baleani, Paolo Erani, Barbara Bordini, Federica Zuccheri, Mateusz Kordian Mąkosa, Dalila De Pasquale, Alina Beraudi, Susanna Stea
Recently, concerns have been raised about the potential effect of head-neck junction damage products at the local and systemic levels. Factors that may affect this damage process have not been fully established yet. This study investigated the possible correlations among head-neck junction damage level, implant design, material combination, and patient characteristics. Head-neck junctions of 148 retrieved implants were analysed, including both ceramic-on-ceramic (N = 61) and metal-on-metal (N = 87) bearings...
July 1, 2017: Materials
https://www.readbyqxmd.com/read/28772753/preparation-and-optical-properties-of-infrared-transparent-3y-tzp-ceramics
#4
Chuanfeng Wang, Xiaojian Mao, Ya-Pei Peng, Benxue Jiang, Jintai Fan, Yangyang Xu, Long Zhang, Jingtai Zhao
In the present study, a tough tetragonal zirconia polycrystalline (Y-TZP) material was developed for use in high-speed infrared windows and domes. The influence of the preparation procedure and the microstructure on the material's optical properties was evaluated by SEM and FT-IR spectroscopy. It was revealed that a high transmittance up to 77% in the three- to five-micrometer IR region could be obtained when the sample was pre-sintered at 1225 °C and subjected to hot isostatic pressing (HIP) at 1275 °C for two hours...
April 7, 2017: Materials
https://www.readbyqxmd.com/read/28768778/which-factors-influence-the-rate-of-failure-following-metal-on-metal-hip-arthroplasty-revision-surgery-performed-for-adverse-reactions-to-metal-debris-an-analysis-from-the-national-joint-registry-for-england-and-wales
#5
G S Matharu, A Judge, H G Pandit, D W Murray
AIMS: To determine the outcomes following revision surgery of metal-on-metal hip arthroplasties (MoMHA) performed for adverse reactions to metal debris (ARMD), and to identify factors predictive of re-revision. PATIENTS AND METHODS: We performed a retrospective observational study using National Joint Registry (NJR) data on 2535 MoMHAs undergoing revision surgery for ARMD between 2008 and 2014. The outcomes studied following revision were intra-operative complications, mortality and re-revision surgery...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768777/ceramic-on-ceramic-bearing-fractures-in-total-hip-arthroplasty-an-analysis-of-data-from-the-national-joint-registry
#6
D P Howard, P D H Wall, M A Fernandez, H Parsons, P W Howard
AIMS: Ceramic-on-ceramic (CoC) bearings in total hip arthroplasty (THA) are commonly used, but concerns exist regarding ceramic fracture. This study aims to report the risk of revision for fracture of modern CoC bearings and identify factors that might influence this risk, using data from the National Joint Registry (NJR) for England, Wales, Northern Ireland and the Isle of Man. PATIENTS AND METHODS: We analysed data on 223 362 bearings from 111 681 primary CoC THAs and 182 linked revisions for bearing fracture recorded in the NJR...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768773/ceramics-in-total-hip-arthroplasty-a-bearing-solution
#7
EDITORIAL
J A Skinner, F S Haddad
No abstract text is available yet for this article.
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28762999/immunological-responses-to-total-hip-arthroplasty
#8
REVIEW
Kenny Man, Lin-Hua Jiang, Richard Foster, Xuebin B Yang
The use of total hip arthroplasties (THA) has been continuously rising to meet the demands of the increasingly ageing population. To date, this procedure has been highly successful in relieving pain and restoring the functionality of patients' joints, and has significantly improved their quality of life. However, these implants are expected to eventually fail after 15-25 years in situ due to slow progressive inflammatory responses at the bone-implant interface. Such inflammatory responses are primarily mediated by immune cells such as macrophages, triggered by implant wear particles...
August 1, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28735561/isolated-revision-of-the-acetabular-component-using-alumina-on-alumina-bearings-without-a-metal-sleeve-a-preliminary-study
#9
Kuan-Ting Wu, Jun-Wen Wang, Yu-Der Lu, Shih-Hsiang Yen, Mel S Lee
INTRODUCTION: There has been a debate on the use of ceramic-on-ceramic coupling with the retained femoral stem in isolated acetabular revision. The purpose of this study was to retrospectively review the results and complications of isolated revision of the acetabular component using alumina-on-alumina bearings. METHODS: Between August 2010 and December 2013, 22 patients (23 hips) with a mean age of 60.74 years (40-73) underwent isolated revision of the acetabular component from metal-on-polyethylene to alumina-on-alumina bearings without using a metal sleeve on the undamaged trunnion...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28725970/ion-release-in-ceramic-bearings-for-total-hip-replacement-results-from-an-in-vitro-and-an-in-vivo-study
#10
Jan Philippe Kretzer, Ulrike Mueller, Marcus R Streit, Hartmuth Kiefer, Robert Sonntag, Robert M Streicher, Joern Reinders
INTRODUCTION: Literature on the potential release of trace elements following implantation of Zirconia-platelet toughened alumina (ZPTA) ceramic components is scant. The present study therefore analysed the in vitro and in vivo potential release of ions from ZPTA bearings. MATERIAL AND METHODS: An in vitro and in vivo study was conducted. The in vitro study compared leaching in bovine serum from two groups: ZPTA ceramic heads and Co-28Cr-6Mo alloy heads, both 28-mm diameter...
July 20, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28716026/short-stem-total-hip-arthroplasty-for-osteonecrosis-of-the-femoral-head-in-patients-60%C3%A2-years-or-younger-a-3-to-10-year-follow-up-study
#11
Antonio Capone, Fabrizio Bienati, Stefania Torchia, Daniele Podda, Giuseppe Marongiu
BACKGROUND: In young patients with osteonecrosis of the femoral head (ONFH), short-stem total hip arthroplasty (THA) could allow a potential advantage in preserving metaphyseal bone-stock, when revision surgery might become necessary. However, only a few studies have evaluated the outcome of short-stem THAs in ONFH. We reviewed the prospectively collected data of a cementless partial neck-retaining short-stem with ceramic-on-ceramic bearings in ONFH patients. METHODS: Thirty patients (37 hips) younger than 60 years (mean age at surgery, 51...
July 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28710154/outcomes-following-revision-surgery-performed-for-adverse-reactions-to-metal-debris-in-non-metal-on-metal-hip-arthroplasty-patients-analysis-of-185-revisions-from-the-national-joint-registry-for-england-and-wales
#12
G S Matharu, A Judge, D W Murray, H G Pandit
OBJECTIVES: Few studies have assessed outcomes following non-metal-on-metal hip arthroplasty (non-MoMHA) revision surgery performed for adverse reactions to metal debris (ARMD). We assessed outcomes following non-MoMHA revision surgery performed for ARMD, and identified predictors of re-revision. METHODS: We performed a retrospective observational study using data from the National Joint Registry for England and Wales. All non-MoMHAs undergoing revision surgery for ARMD between 2008 and 2014 were included (185 hips in 185 patients)...
July 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28702381/importance-of-preclinical-evaluation-of-wear-in-hip-implant-designs-using-simulator-machines
#13
REVIEW
Rafael Mello Trommer, Márcia Marie Maru
Total hip arthroplasty (THA) is a surgical procedure that involves the replacement of the damaged joint of the hip by an artificial device. Despite the recognized clinical success of hip implants, wear of the articulating surfaces remains as one of the critical issues influencing performance. Common material combinations used in hip designs comprise metal-on-polymer (MoP), ceramic-on-polymer (CoP), metal-on-metal (MoM), and ceramic-on-ceramic (CoC). However, when the design of the hip implant is concerned besides the materials used, several parameters can influence its wear performance...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28695179/inflammatory-pseudotumor-after-ceramic-on-ceramic-total-hip-arthroplasty
#14
Joshua Campbell, Sean Rajaee, Earl Brien, Guy D Paiement
We present a unique case of a symptomatic adverse local tissue reaction in a patient with a ceramic-on-ceramic total hip bearing surface. To our knowledge, this pathological finding has not yet been described in a ceramic-on-ceramic articulation without a cobalt-chromium alloy trunnion or modular neck component as a source of metal wear. We conclude that despite its mechanical mostly benign wear characteristics, ceramic wear debris is not entirely inert and may lead to the development of adverse local tissue reaction...
June 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28695178/delayed-diagnosis-of-catastrophic-ceramic-liner-failure-with-resultant-pelvic-discontinuity-and-massive-metallosis
#15
Benjamin A Winston, Ryland P Kagan, Thomas W Huff
With newer-generation ceramic components used in total hip arthroplasty, component fracture is a rare complication. However rare, when ceramic component fracture does occur, prompt identification and revision is necessary as delay can lead to dramatic failure with resultant metallosis as the extremely hard ceramic debris abrades remaining components. We present a case of a 70-year-old woman with ceramic liner fracture and an estimated 10-year delay in intervention with failure resulting in pelvic discontinuity and massive metallosis with associated cutaneous manifestation...
June 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28689828/influence-of-humeral-head-material-on-wear-performance-in-anatomic-shoulder-joint-arthroplasty
#16
Ulrike Mueller, Steffen Braun, Stefan Schroeder, Mark Schroeder, Robert Sonntag, Sebastian Jaeger, Jan Philippe Kretzer
BACKGROUND: The number of total shoulder arthroplasties has increased in the past years, with encouraging results. However, the survival of anatomic total shoulder arthroplasty (aTSA) is lower compared with that of knee and hip replacements. Wear-associated problems like loosening are well-known causes of long-term failure of aTSA. The main purpose of this study was to investigate the wear behavior of ceramic-polyethylene bearings compared with the standard metal-polyethylene bearings...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28668212/fretting-and-corrosion-damage-in-taper-adapter-sleeves-for-ceramic-heads-a-retrieval-study
#17
Daniel W MacDonald, Antonia F Chen, Gwo-Chin Lee, Gregg R Klein, Michael A Mont, Steven M Kurtz, Harold E Cates, Matthew J Kraay, Clare M Rimnac
BACKGROUND: During revision surgery with a well-fixed stem, a titanium sleeve can be used in conjunction with a ceramic head to achieve better stress distribution across the taper surface. In vitro testing suggests that corrosion is not a concern in sleeved ceramic heads; however, little is known about the in vivo fretting corrosion of the sleeves. The purpose of this study was to investigate fretting corrosion in sleeved ceramic heads in retrieved total hip arthroplasties. METHODS: Thirty-seven sleeved ceramic heads were collected during revision...
April 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28660436/adventure-sports-and-sexual-freedom-hip-replacement-the-tripolar-hip
#18
James W Pritchett
Certain athletic activities and lifestyles require a completely stable and very mobile hip. Total hip replacement with a natural femoral head size and two mobile-bearing surfaces (i.e., a "tripolar" prosthesis) is the most stable prosthesis. Elegant design and wear-resistant bearing surfaces are the keys to long-term implant survivorship. The hypothesis is that a ceramic-coated tripolar prosthesis using highly cross-linked polyethylene can provide full function and complete stability with low wear. This study sought to determine: (1) patient-reported outcomes, (2) functional outcomes, (3) implant survivorship and complications, and (4) postoperative sexual limitations...
June 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28636252/influence-of-analyzed-lubricant-volumes-on-the-amount-and-characteristics-of-generated-wear-particles-from-three-different-types-of-polyethylene-liner-materials
#19
Jana Markhoff, Carmen Zietz, Christian Fabry, Gerhard Fulda, Rainer Bader
The articulating components of artificial joints consist mainly of metals, ceramics, or polymers. Resulting abrasive wear particles can promote osteolysis and aseptic loosening of the endo-prosthetic implants. Ultra-high-molecular-weight-polyethylene is the material used most for bearing couples in total hip replacement. In the present study, three types of polyethylene (PE) liners varying in material composition, i.e., (1) conventional PE (C-PE), (2) sequentially cross-linked PE (SX-PE), (3) cross-linked PE blended with vitamin E (EX-PE) articulating with two types of femoral heads were used...
June 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28630848/pseudotumour-complicated-by-implant-loosening-one-year-after-revision-ceramic-on-metal-total-hip-arthroplasty-a-case-report
#20
Devendra Lakhotia, Prashant Kumar
INTRODUCTION: Pseudotumor is not an uncommon complication after total hip arthroplasty (THA). This can occur in relationship to different bearing surfaces of head and liner ranging from soft to hard articulation. There is wide spectrum of presentation from asymptomatic to implant failure. CASE REPORT: We report a case of pseudotumor formation with acetabular cup aseptic loosening after revision ceramic on metal hip arthroplasty. The patient underwent pseudotumor excision and re-revision complex arthroplasty procedure using trabecular metal shell and buttress with ceramic on polyethylene THA...
January 2017: Journal of Orthopaedic Case Reports
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