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https://www.readbyqxmd.com/read/29229239/in-vivo-postoperative-motion-analysis-of-metal-and-ceramic-bipolar-hip-hemiarthroplasty
#1
Toru Yoshioka, Nobukazu Okimoto, Yoshifumi Fuse, Makoto Kawasaki, Toshiharu Mori, Akinori Sakai, Tokifumi Majima
BACKGROUND: We hypothesized that ceramic bipolar shows less impingement between stem neck and outer head compared to metal bipolar, because of its low coefficient of friction with the acetabulum cartilage. In this paper, a three dimensional (3D) postoperative motion analysis has been used to assess the different motion characteristics of metal and ceramic bipolar hip hemiarthroplasty systems. METHODS: This study was conducted on 40 patients divided in two matched cohorts: 20 patients with metal bipolar and 20 patients with the ceramic bipolar...
December 8, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29212681/ten-year-follow-up-study-of-three-alternative-bearing-surfaces-used-in-total-hip-arthroplasty-in-young-patients-a-prospective-randomised-controlled-trial
#2
A Atrey, S E Ward, A Khoshbin, N Hussain, E Bogoch, E H Schemitsch, J P Waddell
AIMS: We present the ten-year data of a cohort of patients, aged between 18 and 65 years (mean age 52.7 years; 19 to 64), who underwent total hip arthroplasty. Patients were randomised to be treated with a cobalt-chrome (CoCr) femoral head with an ultra-high molecular weight polyethylene (UHMWPE), highly cross-linked polyethylene (XLPE) or ceramic-on-ceramic (CoC) bearing surface. PATIENTS AND METHODS: A total of 102 hips (91 patients) were randomised into the three groups...
December 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29204484/pseudotumor-in-ceramic-on-metal-total-hip-arthroplasty
#3
Yoni M Blau, Andrew J Meyers, Mauro Giordani, John P Meehan
The increasing demand for total hip arthroplasty (THA) in relatively young, high-demand patients has led to the use of hard-on-hard bearing surfaces. Adverse local tissue reaction/pseudotumor and elevated serum metal ion levels are commonly reported complications encountered in metal-on-metal THA, while audible articulation and rim fracture are reported in ceramic-on-ceramic THA. For this reason, ceramic-on-metal THA was implemented as an ideal hard-on-hard bearing combination. In this report, we describe a case of bilateral simultaneous ceramic-on-metal THA in a 69-year-old woman who presented 7 years postoperatively with unilateral hip pain associated with underlying pseudotumor and elevated serum cobalt and chromium ion levels...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29204481/corrosion-and-adverse-tissue-reaction-after-modular-unipolar-hip-hemiarthroplasty
#4
Brian F Moore, Paul F Lachiewicz
Modern unipolar hip hemiarthroplasty, commonly used for displaced femoral neck fracture, is now modular, with both a variable length cobalt-chromium adapter-sleeve and large femoral head. Patients with these modular components may develop symptomatic trunnion corrosion, with elevated serum metal levels. We report the case of an 82-year-old woman, 5.5 years after a modular unipolar hip hemiarthroplasty, who presented with a 4-month history of hip pain and limp. Evaluation showed elevated serum cobalt and chromium levels and an acetabular cyst...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29192727/which-is-the-best-bearing-surface-for-primary-total-hip-replacement-a-new-zealand-joint-registry-study
#5
Paul Sharplin, Michael C Wyatt, Alaistair Rothwell, Chris Frampton, Gary Hooper
INTRODUCTION: We have investigated the revision rates of all bearing surface combinations for primary total hip replacement (THR) registered on the New Zealand Joint Registry (NZJR) to determine which coupling has been the most durable and successful over the last 16 years. METHODS: There were 106,139 primary THRs registered, resulting in 4,960 revisions for any cause. We examined all-cause revision rates, reasons for revision and performed survival analyses. RESULTS: Ceramic-on-highly cross-linked polyethylene (CoPx) had the lowest all-cause revision rate of 0...
December 1, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29174760/increased-serum-ion-levels-after-ceramic-on-metal-bearing-total-hip-arthroplasty-influence-of-an-asian-lifestyle
#6
Seung-Beom Han, Jong Keon Oh, Woo Young Jang, Nishant Choudhary, Hyun Gon Kim, Won Yong Shon
BACKGROUND: Recent clinical studies have suggested that systemic metal ion levels are significantly elevated at midterm follow-up in patients with ceramic-on-metal (COM) bearing. However, it is not clear whether there is a correlation between patient-related factors including the lifestyle and elevated levels of serum metal ions following COM total hip arthroplasty (THA). METHODS: Serum metal levels were measured in 201 patients (234 hips) including 121 COM patients (140 hips) and 80 non-COM patients (94 hips)...
October 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29160130/the-effect-of-bearing-type-on-the-outcome-of-total-hip-arthroplasty
#7
Rinne M Peters, Liza N Van Steenbergen, Martin Stevens, Paul C Rijk, Sjoerd K Bulstra, Wierd P Zijlstra
Background and purpose - Alternative bearing surfaces such as ceramics and highly crosslinked polyethylene (HXLPE) were developed in order to further improve implant performance of total hip arthroplasties (THAs). Whether these alternative bearing surfaces result in increased longevity is subject to debate. Patients and methods - Using the Dutch Arthroplasty Register (LROI), we identified all patients with a primary, non-metal-on-metal THA implanted in the Netherlands in the period 2007-2016 (n = 209,912). Cumulative incidence of revision was calculated to determine differences in survivorship of THAs according to bearing type: metal-on-polyethylene (MoPE), metal-on-HXLPE (MoHXLPE), ceramic-on-polyethylene (CoPE), ceramic-on-HXLPE (CoHXLPE), ceramic-on-ceramic (CoC), and oxidized-zirconium-on-(HXL)polyethylene (Ox(HXL)PE)...
November 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29152495/midterm-outcomes-of-titanium-modular-femoral-necks-in-total-hip-arthroplasty
#8
Thurial Collet, Jean-Pierre Atanasiu, Jean-Baptiste de Cussac, Kamal Oufroukhi, Hugo Bothorel, Mo Saffarini, François Badatcheff
Background: Modular femoral necks present surgical and biomechanical advantages in total hip arthroplasty (THA), but their benefits remain controversial due to risks of corrosion and fracture at the additional junction. This study aimed to report 10-year survival and clinical outcomes of a titanium femoral stem with a titanium modular neck in consecutive series. Methods: The authors reviewed the records of 97 patients (99 THAs) using uncemented modular stem and ceramic-on-ceramic acetabular components...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29141360/-total-hip-arthroplasty-in-patients-with-psoriatic-arthritis
#9
Y Li, X S Weng, J Lin, J Jin, W W Qian
Objective: To evaluate the clinical efficacy of Total hip arthroplasty (THA) in treating the hip joint involvement of Psoriatic arthritis (PsA). Methods: From January 2005 to December 2016, a total of 15 PsA patients (20 hip joints) underwent THA in Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. All the patients had obvious restriction in daily life before operation. The mean Harris score was 25.2 averagely and the mean total range of the hip joint movement was 39...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29125996/characterization-of-wear-debris-released-from-alumina-on-alumina-hip-prostheses-analysis-of-retrieved-femoral-heads-and-peri-prosthetic-tissues
#10
Louis Rony, Pierre de Sainte Hermine, Vincent Steiger, Romain Mallet, Laurent Hubert, Daniel Chappard
We analyzed by SEM three alumina-on-alumina femoral heads obtained from three patients who underwent revision for an aseptic loosening of the acetabular component. In parallel, the peri-prosthetic tissues were analyzed histologically in search of wear debris coming from the ceramic. Stripe wears, abrasive streaks, craters, and areas with extensive biomaterial removal were evidenced on the three femoral heads by SEM. In the altered area, the structure of the ceramic composed of minute polyhedric grains packed together was evidenced...
November 4, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/29105561/failure-of-an-accis-metal-on-metal-hip-resurfacing-prosthesis-a-case-report
#11
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/29102074/long-term-survival-of-total-hip-arthroplasty-using-implants-from-different-manufacturers
#12
James W Taylor, Chris Frampton, Alastair G Rothwell
BACKGROUND: Total hip arthroplasty (THA) can be performed using either femoral and acetabular components provided by the same manufacturer (matched components) or components from different manufacturers (unmatched components). We hypothesized that there would be no difference in outcomes following the use of unmatched compared to matched components. METHODS: Data from a nationwide joint registry, the New Zealand Joint Registry (NZJR), were analyzed to assess long-term outcomes of using unmatched implants in THA...
October 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29098102/compression-of-the-femoral-vessels-by-a-pseudotumor-after-metal-on-metal-total-hip-arthroplasty
#13
Yasuaki Tamaki, Tomohiro Goto, Takahiko Tsutsui, Tomoya Takasago, Keizo Wada, Koichi Sairyo
Here we present a case of pseudotumor following total hip arthroplasty (THA) that resulted in a circulatory disturbance caused by compression of the femoral vasculature. A 63-year-old man presented with pain, swelling, and redness of the left leg 5 years after primary metal-on-metal THA using the AML-Plus stem, Pinnacle® acetabular cup, and 36 mm diameter Ultamet™ metal head system (DePuy Orthopaedics, Warsaw, IN). Enhanced computed tomography and magnetic resonance imaging revealed a large cystic lesion extending from the left hip anteriorly to the intrapelvic region and compressing the left femoral vessels...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29097396/choice-of-implant-combinations-in-total-hip-replacement-systematic-review-and-network-meta-analysis
#14
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/29082427/cementless-modular-neck-stems-are-they-a-safe-option-in-primary-total-hip-arthroplasty
#15
José M Pelayo-de-Tomás, José L Rodrigo-Pérez, Carlos D Novoa-Parra, Alejandro Lizaur-Utrilla, María Morales-Suárez-Varela, José Antonio Blas-Dobón
PURPOSE: The objective was to assess aseptic complications and functional outcome using a primary total hip arthroplasty with modular neck. METHODS: Prospective cohort of 317 consecutive patients. The mean age was 61.1 (range, 41-84) years. The H-Max-M model (Lima, Italy) system was used in all patients. The functional assessment was made by the Harris Hip Score, Short Form-36 (SF-36), Western Ontario and McMaster Universities Osteoarthritis Index and visual analogue scale for pain...
October 29, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29079168/wear-rates-with-large-metal-and-ceramic-heads-on-a-second-generation-highly-cross-linked-polyethylene-at-mean-6-year-follow-up
#16
Michael A Gaudiani, Peter B White, Narges Ghazi, Amar S Ranawat, Chitranjan S Ranawat
BACKGROUND: Bearing surface wear and osteolysis are major factors limiting the durability of total hip arthroplasty (THA). Second generation annealed highly cross-linked polyethylene (HXLPE) and ceramics were introduced to THA for their excellent wear rates. However, there is little data comparing the wear rates of metal and ceramic heads on second generation HXLPE. METHODS: Sixty patients who received a noncemented THA with a 32- or 36-mm delta ceramic head were matched with 60 THAs with a 32- or 36-mm metal head based on gender, head size, follow-up, and University of California, Los Angeles activity score...
September 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29048694/effect-of-sleeved-ceramic-femoral-heads-on-titanium-ion-release
#17
Anthony Deny, Janie Barry, Jonathan R B Hutt, Martin Lavigne, Vincent Massé, Pascal-André Vendittoli
INTRODUCTION: Metal ion release from wear and corrosion at the femoral head-stem taper junction can evoke local adverse reactions to metal debris (ARMD). In a specific large-diameter head (LDH) total hip arthroplasty (THA) system, ceramic femoral heads of 44 to 48 mm are available with a titanium (Ti) adaptor sleeve, while heads of 36- to 40-mm come without sleeves. The hypothesis of this study is that the Ti adaptor sleeve with LDH ceramic-on-ceramic (CoC) bearings will not cause wear or corrosion at the taper junction and, thus, will not generate high whole blood Ti ion levels...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29027189/evidence-based-recommendations-for-reducing-head-neck-taper-connection-fretting-corrosion-in-hip-replacement-prostheses
#18
Christian M Wight, Brent Lanting, Emil H Schemitsch
INTRODUCTION: This systematic review seeks to summarise the published studies investigating prosthetic design, manufacture and surgical technique's effect on fretting corrosion at the head-neck taper connection, and provide clinical recommendations to reduce its occurrence. METHODS: PubMed, MEDLINE and EMBASE electronic databases were searched using the terms taper, trunnion, cone and head-neck junction. Articles investigating prosthetic design, manufacture and surgical technique's effect on fretting corrosion were retrieved, reviewed and graded according to OCEBM levels of evidence and grades of recommendation...
October 9, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28983216/ceramic-bearings-with-titanium-adapter-sleeves-implanted-during-revision-hip-arthroplasty-show-minimal-fretting-or-corrosion-a-retrieval-analysis
#19
Chelsea N Koch, Mark Figgie, Mark P Figgie, Marcella E Elpers, Timothy M Wright, Douglas E Padgett
BACKGROUND: The BIOLOX® option system, consisting of a BIOLOX® delta ceramic femoral head with a titanium alloy adapter sleeve, is being increasingly utilized in revision hip arthroplasty. The sleeve protects the ceramic head from fracture and improper motion about the stem trunnion when a damaged trunnion is encountered at revision surgery. Corrosion and fretting due to metal-metal contact at the taper region of hip prosthesis create the potential of causing periprosthetic osteolysis and adverse local tissue reactions...
October 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28963150/five-year-follow-up-of-a-prospective-randomised-trial-comparing-ceramic-on-metal-and-metal-on-metal-bearing-surfaces-in-total-hip-arthroplasty
#20
RANDOMIZED CONTROLLED TRIAL
R Schouten, A A Malone, C M Frampton, C Tiffen, G Hooper
AIMS: The primary aim of this independent prospective randomised trial was to compare serum metal ion levels for ceramic-on-metal (CoM) and metal-on-metal (MoM) bearing surfaces in total hip arthroplasty (THA). Our one-year results demonstrated elevation in metal ion levels above baseline with no significant difference between the CoM and MoM groups. This paper reviews the five-year data. PATIENTS AND METHODS: The implants used in each patient differed only in respect to the type of femoral head (ceramic or metal)...
October 2017: Bone & Joint Journal
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