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Hip resurfacing

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https://www.readbyqxmd.com/read/29228956/analysis-of-bearing-wear-whole-blood-and-synovial-fluid-metal-ion-concentrations-and-histopathological-findings-in-patients-with-failed-asr-hip-resurfacings
#1
Lari Lehtovirta, Aleksi Reito, Jyrki Parkkinen, Harry Hothi, Johann Henckel, Alister Hart, Antti Eskelinen
BACKGROUND: Adverse Reaction to Metal Debris (ARMD) is still a major reason for revision surgeries in patients with metal-on-metal (MoM) hip replacements. ARMD consists of a wide range of alterations in periprosthetic tissues, most important of which are metallosis, inflammation, pseudotumors and necrosis. Studies investigating histopathological findings and their association to implant wear or indirect measures of wear have yielded inconsistent results. Therefore, we aimed to investigate bearing surface wear volume, whole blood and synovial fluid metal ion concentrations, histopathological findings in periprosthetic tissues and their associations...
December 11, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29196225/hip-prostheses-in-young-adults-surface-prostheses-and-short-stem-prostheses
#2
X Gallart, J Riba, J A Fernández-Valencia, G Bori, E Muñoz-Mahamud, A Combalia
The poor results obtained in young patients when using a conventional prosthesis led to the resurgence of hip resurfacing to find less invasive implants for the bone. Young patients present a demand for additional activity, which makes them a serious challenge for the survival of implants. In addition, new information technologies contribute decisively to the preference for non-cemented prostheses. Maintaining quality of life, preserving the bone and soft tissues, as well as achieving a very stable implant, are the goals of every hip orthopaedic surgeon for these patients...
November 28, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29105561/failure-of-an-accis-metal-on-metal-hip-resurfacing-prosthesis-a-case-report
#3
Martin C Bone, Andrew Naylor
The introduction of coatings on joint replacements was intended to reduce wear volumes, prevent corrosion and reduce metal ion release. However, retrieval analysis to confirm their in vivo performance has been limited. The aim of study was to examine the coating on a retrieved hip prosthesis to determine whether substantial damage or wear had occurred. A single advanced ceramic-coated implant systems titanium niobium nitride-coated hip resurfacing prosthesis was retrieved for examination. Wear volumes and surface roughness were measured to quantify the damage to the articulating surfaces...
November 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29100185/numerical-evaluation-of-bone-remodelling-and-adaptation-considering-different-hip-prosthesis-designs
#4
Ievgen Levadnyi, Jan Awrejcewicz, José Eduardo Gubaua, Jucélio Tomás Pereira
BACKGROUND: The change in mechanical properties of femoral cortical bone tissue surrounding the stem of the hip endoprosthesis is one of the causes of implant instability. We present an analysis used to determine the best conditions for long-term functioning of the bone-implant system, which will lead to improvement of treatment results. METHODS: In the present paper, a finite element method coupled with a bone remodelling model is used to evaluate how different three-dimensional prosthesis models influence distribution of the density of bone tissue...
October 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29097396/choice-of-implant-combinations-in-total-hip-replacement-systematic-review-and-network-meta-analysis
#5
REVIEW
José A López-López, Rachel L Humphriss, Andrew D Beswick, Howard H Z Thom, Linda P Hunt, Amanda Burston, Christopher G Fawsitt, William Hollingworth, Julian P T Higgins, Nicky J Welton, Ashley W Blom, Elsa M R Marques
Objective To compare the survival of different implant combinations for primary total hip replacement (THR). Design Systematic review and network meta-analysis. Data sources Medline, Embase, The Cochrane Library, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform, and the EU Clinical Trials Register.Review methods Published randomised controlled trials comparing different implant combinations. Implant combinations were defined by bearing surface materials (metal-on-polyethylene, ceramic-on-polyethylene, ceramic-on-ceramic, or metal-on-metal), head size (large ≥36 mm or small <36 mm), and fixation technique (cemented, uncemented, hybrid, or reverse hybrid)...
November 2, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29076450/-clinical-outcome-complications-and-prosthesis-survival-in-patients-operated-with-hip-resurfacing-arthroplasty
#6
Ole Jakob Jørgensen, Baard Haaken Haakenstad, Ole Ovesen, Søren Overgaard
Hip resurfacing arthroplasty (RHA) was introduced as a superior alternative to the standard total hip arthroplasty (THA) in treating younger, more active patients. Early failure associated with adverse reactions to metal debris is now a known complication after hip resurfacing. There is no short-term difference in clinical outcome between patients operated with THA and RHA, and those operated with RHA are at greater risk of reoperation. Follow-up of patients having had RHA is recommended to follow national guidelines...
October 23, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29065275/multicenter-analysis-of-midterm-clinical-outcomes-of-arthroscopic-labral-repair-in-the-hip-minimum-5-year-follow-up
#7
Mario Hevesi, Aaron J Krych, Nick R Johnson, John M Redmond, David E Hartigan, Bruce A Levy, Benjamin G Domb
BACKGROUND: The technique of hip arthroscopic surgery is advancing and becoming more commonly performed. However, most current reported results are limited to short-term follow-up, and therefore, the durability of the procedure is largely unknown. PURPOSE: To perform a multicenter analysis of mid-term clinical outcomes of arthroscopic hip labral repair and determine the risk factors for patient outcomes. STUDY DESIGN: Cohort study; Level of evidence, 3...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29027192/hip-resurfacing-arthroplasty-for-patients-with-inflammatory-arthritis-a-systematic-review
#8
Kyle W Morse, Edwin P Su
INTRODUCTION: Modern metal-on-metal hip resurfacing arthroplasty has led to decreased revision rates and high implant survival rates as compared to prior generations of resurfacing. Many of the series that report on resurfacing outcomes focus upon patients treated with a diagnosis of osteoarthritis. Patients with inflammatory arthritis such as rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are also treated in these series, however, their outcomes following resurfacing are underreported...
October 12, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28979994/factors-associated-with-30-day-readmission-after-primary-total-hip-arthroplasty-analysis-of-514%C3%A2-455-procedures-in-the-uk-national-health-service
#9
Adam M Ali, Mark D Loeffler, Paul Aylin, Alex Bottle
Importance: Thirty-day readmission to hospital after total hip arthroplasty (THA) has significant direct costs and is used as a marker of hospital performance. All-cause readmission is the only metric in current use, and risk factors for surgical readmission and those resulting in return to theater (RTT) are poorly understood. Objective: To determine whether patient-related predictors of all-cause, surgical, and RTT readmission after THA differ and which predictors are most significant...
October 4, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28966390/erratum-management-guidelines-for-metal-on-metal-hip-resurfacing-arthroplasty-a-strategy-on-followup
#10
(no author information available yet)
[This corrects the article on p. 414 in vol. 51, PMID: 28790470.].
September 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28941247/wear-testing-of-a-canine-hip-resurfacing-implant-that-uses-highly-cross-linked-polyethylene
#11
Kevin J Warburton, John B Everingham, Jillian L Helms, Andrew J Kazanovicz, Katherine A Hollar, Jeff D Brourman, Steven M Fox, Trevor J Lujan
Hip resurfacing offers advantages for young, active patients afflicted with hip osteoarthritis and may also be a beneficial treatment for adult canines. Conventional hip resurfacing uses metal-on-metal bearings to preserve bone stock, but it may be feasible to use metal-on-polyethylene bearings to reduce metal wear debris while still preserving bone. This study characterized the short-term wear behavior of a novel hip resurfacing implant for canines that uses a 1.5 mm thick liner of highly cross-linked polyethylene in the acetabular component...
September 23, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28931340/lessons-learnt-from-early-failure-of-a-patient-trial-with-a-polymer-on-polymer-resurfacing-hip-arthroplasty
#12
Job L C Van Susante, Nico Verdonschot, L Paul A Bom, Pawel Tomaszewski, Pat Campbell, Edward Ebramzadeh, B Wim Schreurs
Background and purpose - Hip resurfacing (HR) is a treatment option promoted for hip arthritis in young and active patients. However, adverse reactions to metal are a concern and the search for non-metallic bearing options proceeds. We present the first clinical study performed in patients using a newly developed hydrophilic polymer-on-polymer hip resurfacing device. Patients and methods - After performing extensive hip simulator tests, biocompatibility testing and animal tests (ISO 14242-1,3; 10993-3,4,5,10,11), approval was obtained from the IRB committee to enroll 15 patients in the first clinical study in humans using this experimental polymer-on-polymer hip resurfacing device...
September 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28926394/armd-and-presumed-dangerous-commentary-on-an-article-by-gulraj-s-matharu-bsc-hons-mrcs-mres-et-al-blood-metal-ion-thresholds-to-identify-patients-with-metal-on-metal-hip-implants-at-risk-of-adverse-reactions-to-metal-debris-an-external-multicenter-validation
#13
COMMENT
https://www.readbyqxmd.com/read/28926382/blood-metal-ion-thresholds-to-identify-patients-with-metal-on-metal-hip-implants-at-risk-of-adverse-reactions-to-metal-debris-an-external-multicenter-validation-study-of-birmingham-hip-resurfacing-and-corail-pinnacle-implants
#14
MULTICENTER STUDY
Gulraj S Matharu, Fiona Berryman, Andrew Judge, Aleksi Reito, Jamie McConnell, Olli Lainiala, Stephen Young, Antti Eskelinen, Hemant G Pandit, David W Murray
BACKGROUND: The authors of recent studies have reported newly devised implant-specific blood metal ion thresholds to predict adverse reactions to metal debris (ARMD) in patients who have undergone unilateral or bilateral metal-on-metal (MoM) hip arthroplasty. These thresholds were most effective for identifying patients at low risk of ARMD. We investigated whether these newly devised blood metal ion thresholds could effectively identify patients at risk of ARMD after MoM hip arthroplasty in an external cohort of patients...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28885647/10-year-results-of-the-birmingham-hip-resurfacing-a-non-designer-case-series
#15
Thomas J A Hunter, Thomas S Moores, David Morley, Gopikanthan Manoharan, Simon G Collier, Phillip J Shaylor
INTRODUCTION: Recent controversies surrounding metal-on-metal (MoM) hip resurfacing has led to a substantial decline in its use. Despite this, there is good evidence to support the use of specific implants in select patients. PATIENTS AND METHODS: A retrospective analysis of Birmingham Hip Resurfacing (BHR) patients with a minimum of 10 years follow-up was performed. Functional scoring was performed with the Oxford Hip Score (OHS) and failure was defined as revision for any cause...
September 5, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28880500/hip-resurfacing
#16
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Clinical Privilege White Paper
https://www.readbyqxmd.com/read/28878517/comparison-of-metal-ion-levels-in-patients-with-hip-resurfacing-versus-total-hip-arthroplasty
#17
Craig W Forsthoefel, Nicholas M Brown, Mark L Barba
Mechanical wear at the articular surface and corrosive processes at modular junctions, such as the trunnion, are responsible for metal ions production. We retrospectively reviewed 64 patients who underwent THA with a metal on metal bearing surface and 34 patients with hip Resurfacing. Metal ion measurements, six-week post-op radiographs, and functional scores were included in the analysis. Cobalt ion levels were significantly elevated in THA patients, 2.95 μg/L as compared to resurfacing patients, (2.95 versus 1...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28869636/structure-and-corrosion-resistance-of-co-cr-mo-alloy-used-in-birmingham-hip-resurfacing-system
#18
Ewa Dobruchowska, Monika Paziewska, Krzysztof Przybyl, Kazimierz Reszka
PURPOSE: The endoprostheses made of cobalt-chromium-molybdenum (Co-Cr-Mo) alloys belong to the group of the most popular metallic implants used for reconstruction of hip joints. For such biomaterials, the primary goal is a correct and long-term functioning in the aggressive environment of body fluids. Therefore, the purpose of this study was to examine both the morphology and the corrosion resistance of implants made of the cobalt alloy used in Birmingham Hip Resurfacing (BHR) system (Smith & Nephew)...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/28856453/long-term-results-of-birmingham-hip-resurfacing-arthroplasty-in-asian-patients
#19
Keisuke Uemura, Masaki Takao, Hidetoshi Hamada, Takashi Sakai, Kenji Ohzono, Nobuhiko Sugano
Several reports have shown good long-term results with the Birmingham hip resurfacing (BHR) arthroplasty, but little is known about the results in Asian countries where there is a high prevalence of osteonecrosis and developmental dysplasia of the hip, and many females with small femoral head sizes. Therefore, we retrospectively evaluated the long-term clinical results of the BHR in 112 Japanese patients (53 males and 59 females-130 hips) with an average age of 52 years. Implant survivorship was analyzed using the Kaplan-Meier method with the endpoint being revision for any reason...
August 30, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28832291/-increased-mortality-in-metal-on-metal-versus-non-metal-on-metal-primary-total-hip-arthroplasty-at-10-years-and-longer-follow-up-a-systematic-review-and-meta-analysis
#20
B G Pijls, J M T A Meessen, J W Schoones, M Fiocco, H J L van der Heide, A Sedrakyan, R G H H Nelissen
OBJECTIVE: To determine the mortality and the morbidity in patients with metal-on-metal articulations (MOM THA) when compared to patients with non-metal-on-metal articulations (non-MOM THA) after primary total hip arthroplasty. DESIGN: Systematic review, meta-analyses and meta-regression (registration: PROSPERO 2014:CRD42014007417). METHOD: Search of PubMed, MEDLINE, EMBASE, Web of Science, Cochrane, CINAHL, AcademicSearchPremier, ScienceDirect, Wiley and clinical trial registers...
2017: Nederlands Tijdschrift Voor Geneeskunde
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