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"Hip resurfacing arthroplasty"

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https://www.readbyqxmd.com/read/28663390/risk-factors-for-wear-related-failures-after-hip-resurfacing-in-patients-with-a-low-contact-patch-to-rim-distance
#1
H C Amstutz, M J Le Duff, S K Bhaurla
AIMS: A contact patch to rim (CPR) distance of < 10 mm has been associated with edge-loading and excessive wear. However, not all arthroplasties with a low CPR distance show problems with wear. Therefore, CPR distance may not be the only variable affecting the post-operative metal ion concentrations. PATIENTS AND METHODS: We used multiple logistic regression to determine what variables differed between the patients who had high and low cobalt (CoS) and chromium (CrS) serum ion concentrations within a cohort of patients with low (< 10 mm) CPR distances...
July 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28660477/correlation-of-serum-metal-ion-levels-with-pathological-changes-of-armd-in-failed-metal-on-metal-hip-resurfacing-arthroplasties
#2
George Grammatopoulos, Mitsuru Munemoto, Athanasios Pollalis, Nicholas A Athanasou
BACKGROUND: Metal-on-metal-hip-resurfacing arthroplasties (MoMHRAs) have been associated with an increased failure rates due to an adverse-response-to-metal-debris (ARMD) associated with a spectrum of pathological features. Serum levels of cobalt (Co) and chromium (Cr) are used to assess MoMHRAs, with regard to ARMD, but it is not certain whether ion levels correlate with pathological changes in periprosthetic tissues. METHODS: Serum Co and Cr levels were correlated with histological findings in 38 revised MoMHRAs (29 pseudotumour cases and 9 non-pseudotumour cases revised for pain)...
June 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28642661/customized-guide-for-femoral-component-positioning-in-hip-resurfacing-arthroplasty
#3
Chaturong Pornrattanamaneewong, Rapeepat Narkbunnam, Keerati Chareancholvanich
OBJECTIVE: To prove the accuracy of a customized guide developed according to our method. METHODS: This customized guide was developed from a three-dimensional model of proximal femur reconstructed using computed tomography data. Based on the new technique, the position of the guide pin insertion was selected and adjusted using the reference of the anatomical femoral neck axis. The customized guide consists of a hemispheric covering designed to fit the posterior part of the femoral neck...
March 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28641972/equal-primary-fixation-of-resurfacing-stem-but-inferior-cup-fixation%C3%A2-with-anterolateral-vs-posterior-surgical-approach-a-2-year-blinded-randomized-radiostereometric-and-dual-energy-x-ray-absorptiometry-study-of-metal-on-metal-hip-resurfacing-arthroplasty
#4
Mette H Hjorth, Nina D Lorenzen, Kjeld Søballe, Stig S Jakobsen, Maiken Stilling
BACKGROUND: The anterolateral (AntLat) surgical approach may spare the blood supply to the femoral head and improve the accuracy of cup positioning in metal-on-metal hip resurfacing arthroplasty. Thereby, potentially lessen complications such as avascular head necrosis, femoral neck narrowing and fracture, improve implant fixation, and lessen periprosthetic bone mineral density (BMD) loss. METHODS: Between November 2008 and January 2012, a randomized clinical trial was performed at Aarhus University Hospital...
May 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28602531/outcomes-of-hip-arthroplasty-after-failed-hip-arthroscopy-a-case-control-study
#5
Simon J M Parker, George Grammatopoulos, Owain L I Davies, Karen Lynch, Tom C B Pollard, Antonio J Andrade
BACKGROUND: Hip arthroscopy is increasingly being used in joint preservation surgery with clear benefits in the treatment of prearthritic conditions. A number of patients, however, will still go on to require subsequent hip arthroplasty, and at present, little evidence exists determining the impact that prior hip arthroscopy may have on the outcomes of a subsequent arthroplasty. METHODS: Using prospectively collated data, we identified 35 patients who had a hip arthroplasty (22 total hip arthroplasties and 13 hip resurfacing arthroplasties) after prior ipsilateral hip arthroscopy (cases)...
May 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28578684/metal-on-metal-hip-resurfacing-in-patients-younger-than-50%C3%A2-years-a-retrospective-analysis-1285-cases-12-year-survivorship
#6
Melissa D Gaillard, Thomas P Gross
BACKGROUND: The Nordic registry reports patients under 50 years old with total hip replacements realize only 83% 10-year implant survivorship. These results do not meet the 95% 10-year survivorship guideline posed by the UK's National Institute for Health and Care Excellence (NICE) in 2014. METHODS: The purpose of this study is threefold: First, we evaluate if metal-on-metal hip resurfacing arthroplasty meets these high standards in younger patients. Next, we compare outcomes between age groups to determine if younger patients are at higher risk for revision or complication...
June 2, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28419029/females-with-unexplained-joint-pain-following-total-joint-arthroplasty-exhibit-a-higher-rate-and-severity-of-hypersensitivity-to-implant-metals-compared-with-males-implications-of-sex-based-bioreactivity-differences
#7
Marco S Caicedo, Edward Solver, Latasha Coleman, Joshua J Jacobs, Nadim J Hallab
BACKGROUND: Recent studies indicate that females demonstrate an increased risk of experiencing adverse local tissue reactions, aseptic loosening, and revision after primary metal-on-metal hip resurfacing arthroplasty compared with males; the underlying biological mechanisms responsible for sex discrepancies in implant failure remain unclear. In addition to anatomical and biomechanical sex differences, there may be inherent immunological disparities that predispose females to more aggressive adaptive immune reactivity to implant debris, i...
April 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28418575/effects-of-previous-osteotomy-on-outcome-of-hip-resurfacing-arthroplasty
#8
Harlan Cabot Amstutz, Michel Jean Le Duff
The effect of previous conservative surgeries on the outcome of metal-on-metal hip resurfacing arthroplasty (HRA) has not been studied. This study compared postoperative clinical scores and survivorship results of hips with and without previous osteotomies in a population of patients who underwent HRA. A total of 1101 patients (1375 hips) with a mean age of 51.3 years at the time of surgery underwent HRA at a single center. Sixty-nine patients had undergone prior surgery on the operated hip including 14 osteotomies (1 pelvic, 6 femoral, and 7 combined pelvic and femoral osteotomies)...
July 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28362050/clinical-and-radiographic-outcomes-of-the-birmingham-hip-resurfacing-arthroplasty-at-a-minimum-follow-up-of-10-years-results-from-an-independent-centre
#9
Antonio Moroni, Maria Teresa Miscione, Riccardo Orsini, Giovanni Micera, Salvatore Mosca, Fabrizio Sinapi, Laura De Girolamo, Giuseppe Banfi
BACKGROUND: Metal-on-metal hip resurfacing (MoMHR) has been proposed as an effective surgical treatment for young and active patients with symptomatic hip disease. Recently, good clinical and radiographic outcomes have been reported by the designer surgeons at a 15.3 years follow-up; however, results at long follow-up by non-designer surgeons are less satisfactory. The aim of the study was to investigate if MoMHR can produce satisfactory clinical and radiographic results and if survival rate can be high even if the procedure is performed by non-designer surgeons...
March 21, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28361022/hip-resurfacing-arthroplasty-complicated-by-mismatched-implant-components
#10
Alessandro Calistri, Patricia Campbell, Catherine Van Der Straeten, Koen Aimè De Smet
Metal-on-metal hip resurfacing has gained popularity as a feasible treatment option for young and active patients with hip osteoarthritis and high functional expectations. This procedure should only be performed by surgeons who have trained specifically in this technique. Preoperative planning is essential for hip resurfacing in order to execute a successful operation and preview any technical problems. The authors present a case of a man who underwent a resurfacing arthroplasty for osteoarthritis of the left hip that was complicated by mismatched implant components that were revised three days afterwards for severe pain and leg length discrepancy...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28218371/adverse-reaction-to-metal-debris-in-a-consecutive-series-of-durom%C3%A2-hip-resurfacing-pseudotumour-incidence-and-metal-ion-concentration
#11
Albrecht Hartmann, Jan-Dirk Kieback, Jörg Lützner, Klaus-Peter Günther, Jens Goronzy
INTRODUCTION: The aim of this study was to evaluate the incidence of adverse reactions to metal debris (ARMD) in a consecutive series of DUROM™ Hip Resurfacing Arthroplasty (HRA) at mid-term follow-up. METHODS: Between October 2003 and March 2007 a total of 134 consecutive DUROM™ HRA in 121 patients were performed at our institution. Follow-up could be obtained in 101 unrevised patients (83%) at a mean time of 8.51 ± 0.97 years postoperatively and included patient-related outcome measurement, plain radiographs, MARS-MRI as well as whole blood metal ion assessment...
February 8, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28165598/correlation-between-serum-metal-ion-levels-and-adverse-local-tissue-reactions-after-conserve%C3%A2-plus-hip-resurfacing-arthroplasty
#12
Harlan C Amstutz, Michel J Le Duff
BACKGROUND: Adverse local tissue reactions (ALTR) have been associated with the use of metal-on-metal (MoM) bearings and the monitoring of cobalt (Co) and chromium (Cr) ion levels in blood or serum may be the best way to evaluate in vivo the wear of these bearings. However, the relationship between Co and Cr ion concentrations and the formation of ALTR remains unclear. METHODS: We investigated the relationship between ALTR and serum Co and Cr ion levels and identified the clinical factors influencing the formation of ALTR in patients treated with MoM hip resurfacing arthroplasties...
February 6, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27888094/nano-analyses-of-wear-particles-from-metal-on-metal-and-non-metal-on-metal-dual-modular-neck-hip-arthroplasty
#13
Zhidao Xia, Benjamin F Ricciardi, Zhao Liu, Christopher von Ruhland, Mike Ward, Alex Lord, Louise Hughes, Steven R Goldring, Edward Purdue, David Murray, Giorgio Perino
Increased failure rates due to metallic wear particle-associated adverse local tissue reactions (ALTR) is a significant clinical problem in resurfacing and total hip arthroplasty. Retrieved periprosthetic tissue of 53 cases with corrosion/conventional metallic wear particles from 285 revision operations for ALTR was selected for nano-analyses. Three major classes of hip implants associated with ALTR, metal-on-metal hip resurfacing arthroplasty (MoM HRA) and large head total hip replacement (MoM LHTHA) and non-metal-on-metal dual modular neck total hip replacement (Non-MoM DMNTHA) were included...
April 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27857480/differences-in-concentration-of-metal-debris-in-blood-serum-and-plasma-samples-of-patients-with-metal-on-metal-hip-resurfacing-arthroplasty
#14
M Khan, J H Kuiper, Christine Sieniawska, J B Richardson
BACKGROUND/AIMS: Cobalt and chromium are released from MOM hips and their precise nature (ions/particles) is not known. Their distribution in serum, plasma, and whole blood may help to determine their nature. METHODS: We measured cobalt and chromium concentrations in plasma, serum, and whole blood samples of patients with resurfacing MOM hips. RESULTS: We found that chromium concentration was highest in plasma, followed by serum and whole blood...
December 2016: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27759474/poor-10-year-survivorship-of-hip-resurfacing-arthroplasty
#15
MULTICENTER STUDY
Matti Seppänen, Mikko Karvonen, Petri Virolainen, Ville Remes, Pekka Pulkkinen, Antti Eskelinen, Antti Liukas, Keijo T Mäkelä
Background and purpose - In a previous registry report, short-term implant survival of hip resurfacing arthroplasty (HRA) in Finland was found to be comparable to that of total hip arthroplasty (THA). Since then, it has become evident that adverse reactions to metal debris (ARMDs) may also be associated with HRA, not only with large-diameter head metal-on-metal THA. The aim of the study was to assess medium- to long-term survivorship of HRA based on the Finnish Arthroplasty Register (FAR). Patients and methods - 5,068 HRAs performed during the period 2001-2013 in Finland were included...
December 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27646510/high-serum-ion-levels-in-conserve-plus-big-femoral-head-cemented-total-hip-arthroplasty
#16
Jan F A Somers, Catherine Van Der Straeten, Luc De Coninck
AIM: We report the short-term clinical, radiographic and ion level data of the Conserve Plus metal-on-metal (MoM) big femoral head (BFH) total hip arthroplasty (THA), used with a cemented cobalt-chrome (Co-Cr) Profemur Xm stem and a titanium (Ti) modular neck. RESULTS: In a consecutive series of 40 hips, survivorship at 3 years was 92.5% with revision for any reason. Average Harris Hip Score was 91.3. There were no implant loosenings. No osteolysis was observed...
September 29, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27546469/outcomes-of-the-recalled-articular-surface-replacement-metal-on-metal-hip-implant-system-a-systematic-review
#17
REVIEW
Inari Laaksonen, Gabrielle S Donahue, Rami Madanat, Keijo T Makela, Henrik Malchau
BACKGROUND: The aim of this review was to synthesize the main findings of clinical studies that have evaluated outcomes of the articular surface replacement (ASR) Hip System. METHODS: We performed a systematic literature search to identify all articles published between January 2008 and June 2015 that included ASR hip resurfacing arthroplasty (ASR HRA) or ASR total hip arthroplasty (ASR XL THA) outcomes according to the PRISMA statement. RESULTS: A total of 56 studies were assessed...
January 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27506571/early-aseptic-loosening-of-cementless-monoblock-acetabular-components
#18
Simo S A Miettinen, Tatu J Mäkinen, Inari Laaksonen, Keijo Mäkelä, Heini Huhtala, Jukka Kettunen, Ville Remes
PURPOSE: Early aseptic loosening of cementless monoblock acetabular components is a rare complication of total hip arthroplasty (THA) and hip resurfacing arthroplasty (HRA). The purpose of this study was to evaluate the incidence and risk factors for early aseptic loosening of the cementless monoblock acetabular components. METHODS: This retrospective analysis consisted of 4,043 cementless hip devices (3,209 THAs and 834 HRAs). We identified 41 patients with early aseptic loosening of the acetabular component...
April 2017: International Orthopaedics
https://www.readbyqxmd.com/read/27497594/advanced-metal-artifact-reduction-mri-of-metal-on-metal-hip-resurfacing-arthroplasty-implants-compressed-sensing-acceleration-enables-the-time-neutral-use-of-semac
#19
Jan Fritz, Benjamin Fritz, Gaurav K Thawait, Esther Raithel, Wesley D Gilson, Mathias Nittka, Michael A Mont
OBJECTIVE: Compressed sensing (CS) acceleration has been theorized for slice encoding for metal artifact correction (SEMAC), but has not been shown to be feasible. Therefore, we tested the hypothesis that CS-SEMAC is feasible for MRI of metal-on-metal hip resurfacing implants. MATERIALS AND METHODS: Following prospective institutional review board approval, 22 subjects with metal-on-metal hip resurfacing implants underwent 1.5 T MRI. We compared CS-SEMAC prototype, high-bandwidth TSE, and SEMAC sequences with acquisition times of 4-5, 4-5 and 10-12 min, respectively...
October 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27430186/component-position-and-metal-ion-levels-in-computer-navigated-hip-resurfacing-arthroplasty
#20
Stephen M Mann, Manuela Kunz, Randy E Ellis, John F Rudan
BACKGROUND: Metal ion levels are used as a surrogate marker for wear in hip resurfacing arthroplasties. Improper component position, particularly on the acetabular side, plays an important role in problems with the bearing surfaces, such as edge loading, impingement on the acetabular component rim, lack of fluid-film lubrication, and acetabular component deformation. There are little data regarding femoral component position and its possible implications on wear and failure rates. The purpose of this investigation was to determine both femoral and acetabular component positions in our cohort of mechanically stable hip resurfacing arthroplasties and to determine if these were related to metal ion levels...
January 2017: Journal of Arthroplasty
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