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https://www.readbyqxmd.com/read/28097416/-use-of-dual-mobility-cups-for-revision-hip-arthroplasty
#1
E Röhner, G Matziolis
The dual mobility cup (DMC) is an increasingly important tool not only in primary but also in revision total hip arthroplasty to prevent dislocation and eventually reduce postoperative complication rates. Various studies have shown survival rates with DMCs of up to 100% with an average dislocation rate of less than 1.5% after primary hip arthroplasty and a follow-up of 10 years. In revision surgery, survival rates of up to 99% were reported with dislocation rates between 0 and 10% after an average of 5 years after implantation...
January 17, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28097387/all-dual-mobility-cups-are-not-the-same
#2
Thierry Aslanian
PURPOSE: Although the natural history of dual mobility has been exclusively borne for 20 years by a single company (due to industrial ownership), the concept has undeniably been very widely popularised with nearly 40 cups on the French market which should be regarded as a weight bearing surface, both broadly and in their own right. However, within the same original idea, these implants are not all identical (design, material, fixation ect.).The aim of this work is to propose a classification of different dual mobility cups by distinguishing between thegeneral characteristics of a conventional cup and those particular to this type of implant...
January 18, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28091769/bousquet-dual-mobility-socket-for-patient-under-fifty%C3%A2-years-old-more-than-twenty%C3%A2-year-follow-up-of-one-hundred-and-thirty-one-hips
#3
Remi Philippot, Thomas Neri, Bertrand Boyer, Brice Viard, Frederic Farizon
PURPOSE: The aim of this study was to analyze dual mobility cup survival rate on young patients under 50 years old at more than 20 years of follow up. METHODS: One hundred thirty seven hips with a first generation of dual mobility Bousquet cup (Serf) were included. The mean age at the time of the surgery was 41 years and the mean follow-up was 21.9 years. RESULTS: Twenty year follow-up cup survival rate was 77%. No dislocation occurred, 44 hips were revised (including 21 cup aseptic loosenings isolated, 15 Intra Prosthetic Dislocations), seven hips were lost to follow-up, 11 patients died, and 75 hips were still in situ...
January 16, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28091768/total-hip-arthroplasty-instability-treatment-without-dual-mobility-cups-brief-overview-and-experience-of-other-options
#4
REVIEW
Luigi Zagra, Eleonora Caboni
Dual mobility cups are getting increasing interest for the prevention, but also in the treatment of THA instability. Nevertheless when a dislocation occurs the main issue remains the knowledge and the correction of the causes of dislocation, including reorientation of the components and soft tissues treatment. There are several options of alternative implants to DMCs including upsizing of the head, and constrained liners. The Authors present how to evaluate patients with THA instability, the advantages and the disadvantages of each procedure and their experience in the treatment of cases without DMCs during a five years' time period...
January 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28078363/short-term-outcome-after-total-hip-arthroplasty-using-dual-mobility-cup-report-from-lithuanian-arthroplasty-register
#5
Sarunas Tarasevicius, Alfredas Smailys, Kazimieras Grigaitis, Otto Robertsson, Justinas Stucinskas
PURPOSE: The purpose of the study was to investigate how the use of dual-mobility cups (DMCs) affected the risk of revision due to dislocation as well as overall risk of revision compared with a conventional total hip arthroplasty (THA) system in the short term. METHODS: A total of 12,657 primary THAs were registered from the start of 2011 to the end of 2014. 620 THAs were with DMCs. For comparison, we included all registered THAs with Exeter cup and a cemented Exeter stem combined with 28-mm femoral head...
January 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28078362/use-of-dual-mobility-cup-in-revision-hip-arthroplasty-reduces-the-risk-for-further-dislocation-analysis-of-seven-hundred-and-ninety-one-first-time-revisions-performed-due-to-dislocation-reported-to-the-swedish-hip-arthroplasty-register
#6
Maziar Mohaddes, Peter Cnudde, Ola Rolfson, Alexander Wall, Johan Kärrholm
PURPOSE: Dislocation after total hip arthroplasty (THA) is a common reason for revision. The last decade fostered a significant increase in the use of dual-mobility cups (DMCs). Here we report our study on the short-term survival rate of a cemented DMC reported to the Swedish Hip Arthroplasty Register (SHAR) compared with other cemented designs used in first-time revision due to dislocation. METHODS: During 2005-2015, 984 first-time revisions for dislocation were reported to SHAR...
January 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28074257/outcomes-of-dual-mobility-cups-in-a-young-middle-eastern-population-and-its-influence-on-life-style
#7
Chahine Assi, Elie El-Najjar, Camille Samaha, Kaissar Yammine
Dual mobility cups (DMC) in total hip arthroplasty (THA) are becoming popular among orthopaedic surgeons. Substantial benefit of their use has been reported among high risk patients, particularly in reducing post-operative hip instability (dislocation). Many reports stated some concern when implanted in young and active people where complications such as polyethylene wear and mechanical loosening could potentially be higher. This Middle Eastern study analyses a retrospective series of THA for any aetiology other than infection, using DMC for the acetabular component in 75 patients (85 implants) less than 70 years old...
January 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28070611/dual-mobility-cups-provide-biomechanical-advantages-in-situations-at-risk-for-dislocation-a-finite-element-analysis
#8
Alexandre Terrier, Adeliya Latypova, Maika Guillemin, Valérie Parvex, Olivier Guyen
PURPOSE: Constrained devices, standard implants with large heads, and dual mobility systems have become popular options to manage instability after total hip arthroplasty (THA). Clinical results with these options have shown variable success rates and significant higher rates of aseptic loosening and mechanical failures with constrained implants. Literature suggests potential advantages of dual mobility, however little is known about its biomechanics. We present a comparative biomechanical study of a standard implant, a constrained implant, and a dual mobility system...
January 9, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28057394/metal-ion-levels-in-young-active-patients-receiving-a-modular-dual-mobility-total-hip-arthroplasty
#9
Denis Nam, Rondek Salih, Katherine M Brown, Ryan M Nunley, Robert L Barrack
BACKGROUND: Dual mobility total hip arthroplasty (THA) components improve stability, yet use of a modular cobalt alloy acetabular liner may be associated with metal ion release. This study's purpose was to measure blood metal ion levels in young, active patients receiving a dual mobility THA prosthesis. METHODS: This is a prospective study of young, active patients undergoing primary THA. Twenty-six patients received a 22-mm cobalt alloy (n = 10) or a 28-mm ceramic (n = 16) femoral head, a modular cobalt chrome acetabular liner, with a highly cross-linked polyethylene insert (dual mobility)...
December 21, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28042114/dislocation-following-total-hip-arthroplasty-using-dual-mobility-acetabular-components-a-systematic-review
#10
I De Martino, R D'Apolito, V G Soranoglou, L A Poultsides, P K Sculco, T P Sculco
AIMS: The aim of this systematic review was to report the rate of dislocation following the use of dual mobility (DM) acetabular components in primary and revision total hip arthroplasty (THA). MATERIALS AND METHODS: A systematic review of the literature according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines was performed. A comprehensive search of Pubmed/Medline, Cochrane Library and Embase (Scopus) was conducted for English articles between January 1974 and March 2016 using various combinations of the keywords "dual mobility", "dual-mobility", "tripolar", "double-mobility", "double mobility", "hip", "cup", "socket"...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28025659/results-of-primary-total-hip-replacement-with-first-generation-bousquet-dual-mobility-socket-with-more-than-twenty-five%C3%A2-years-follow-up-about-a-series-of-two-hundred-and-twelve-hips
#11
Thomas Neri, Remi Philippot, Frederic Farizon, Bertrand Boyer
PURPOSE: The aim of our study was to evaluate long-term survival and dislocation rate of this concept. METHODS: It was a retrospective study, on 212 hips using a Bousquet dual mobility Novae® tripodal socket (SERF). Mean follow-up was 25.3 years (95 to 372 months). Mean age at the time of the surgery was 53 years. RESULTS: Pre-operative mean Harris and PMA scores were respectively 54.14 and 11.2. Their respective last follow-up counterparts were 83...
December 26, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/28013332/early-experience-with-dual-mobility-acetabular-systems-featuring-highly-cross-linked-polyethylene-liners-for-primary-hip-arthroplasty-in-patients-under-fifty-five-years-of-age-an-international-multi-centre-preliminary-study
#12
Jean-Alain Epinette, Steven F Harwin, Fiachra E Rowan, Philippe Tracol, Michael A Mont, Morad Chughtai, Geoffrey H Westrich
PURPOSE: To evaluate early performance of contemporary dual mobility acetabular systems with second generation annealed highly cross-linked polyethylene for primary hip arthroplasty of patients under 55 years of age. METHODS: A prospective observational five years study across five centers in Europe and the USA of 321 patients with a mean age of 48.1 years was performed. Patients were assessed for causes of revision, hip instability, intra-prosthetic dissociation, Harris hip score and radiological signs of osteolysis...
December 24, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/28004142/the-evolution-of-outcomes-and-indications-for-the-dual-mobility-cup-a-systematic-review
#13
REVIEW
Cécile Batailler, Camdon Fary, Régis Verdier, Thierry Aslanian, Jacques Caton, Sebastien Lustig
PURPOSE: Instability following total hip arthroplasty remains a common and disabling complication. The dual mobility cup (DMC) allows a reduction in the dislocation rate. An increasing number of studies have been undertaken to better understand DMC long term outcomes and complications. The goal of this systematic review was to clarify its different uses and outcomes according to the indications. METHODS: A comprehensive literature review was performed using the keywords 'dual mobility' and 'tripolar cup' with no limit regarding the year of publication...
December 21, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27999925/total-hip-arthroplasty-instability-in-italy
#14
REVIEW
Francesco Falez, Matteo Papalia, Fabio Favetti, Gabriele Panegrossi, Filippo Casella, Gianluca Mazzotta
Hip dislocation is a major and common complication of total hip arthroplasty (THA), which appears with an incidence between 0.3% and 10% in primary total hip arthroplasties and up to 28% in revision THA. The hip dislocations can be classified into three groups: early, intermediate and late. Approximately two-thirds of cases can be treated successfully with a non-operative approach. The rest require further surgical intervention. The prerequisite to developing an appropriate treatment strategy is a thorough evaluation to identify the causes of the dislocation...
December 20, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27999924/low-friction-arthroplasty-and-dual-mobility-cup-a-new-gold-standard
#15
Jean Louis Prudhon, Régis Verdier, Jacques H Caton
INTRODUCTION: Low friction arthroplasty (LFA) introduced by Sir John Charnley was the gold standard for many years. Dislocation and infection are the first causes for early revision. Late failures are polyethylene (PE) wear and loosening. Due to dislocation risk we slowly switched to the use of LFA with dual mobility cups (DMC). The purposes of this study are (1) to assess whether our changes have improved outcomes and (2) what is the new gold standard? MATERIAL AND METHODS: We selected from an observational registry of 1,091 cases of hybrid Charnley total hip arthroplasty (THA)...
December 20, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27990600/once-upon-a-time-dual-mobility-history
#16
Daniel Noyer, Jacques Henri Caton
INTRODUCTION: Since 1962, the low friction arthroplasty developed by Sir John Charnley has given us very good long terms results at more than 40 years follow up, but dislocation remains a major complication. The dislocation rate is a permanent risk during the life of the patient and the prosthesis, defined by J. Caton and D. Berry in 2004 as a cumulative risk. History and concept development: The concept of dual mobility was thought up by G. Bousquet, A. Rambert and J. Rieu in the 1970s (1974-1979)...
December 19, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27942888/wear-of-dual-mobility-cups-a-review-article
#17
REVIEW
Anna Di Laura, Harry Hothi, Clement Battisti, Arianna Cerquiglini, Johann Henckel, John Skinner, Alister Hart
Dual-mobility (DM) cups have been clinically used in hip surgery in Europe for more than 35 years and continue to gain popularity worldwide due to promising results at reducing instability. Concerns related to polyethylene wear apply as in conventional standard bearings but are accentuated by the larger-diameter articulations with multiple surfaces. We critically reviewed the reported literature regarding the in vivo and in vitro wear occurring on all surfaces involved. We looked for patterns to create a rational classification of sites of wear and to identify areas for future research...
December 9, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27933422/dual-mobility-cups-in-revision-total-hip-arthroplasty
#18
Anthony Viste, Romain Desmarchelier, Michel-Henri Fessy
AIM: The purpose of our study was to evaluate the dislocation and aseptic loosening rates of a dual mobility construct in revision total hip arthroplasty (THA). METHODS: Three hundred thirty-four revision THAs performed between 2006 and 2011, using a dual mobility cup, were included in this retrospective study. The indications for revision were aseptic loosening (70%), infection (21%) and recurrent instability (9%). The minimum follow-up was five years (mean 7 ± 2 years, maximum 10 years)...
December 8, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27928599/understanding-wear-in-dual-mobility-total-hip-replacement-first-generation-explant-wear-patterns
#19
Bertrand Boyer, Thomas Neri, Jean Geringer, Alexandre Di Iorio, Remi Philippot, Frederic Farizon
PURPOSE: Dual mobility was introduced by Pr. G. Bousquet to improve the dislocation risk of total hip arthroplasty (THR). The wear mechanisms of this implant remain to be understood. Could enhanced explant wear analysis explain liner wear behaviour? METHODS: Sixty-six explanted liners were selected. Non-destructive 3D scanning and heat colour treatment allowed reporting wear patterns on both convex and concave sides of the liners. RESULTS: For many liners, liner convexity wear was found to be homogeneous, and linked to a longer implantation time...
December 7, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27924742/dual-mobility-total-hip-replacement-in-a-high-risk-population
#20
Jatinder Singh Luthra, Amur Al Riyami, Mohamad Kasim Allami
OBJECTIVE: The purpose of the study was to evaluate results of dual mobility total replacement in a high risk population who take hip into hyperflexed position while sitting and praying on the floor. METHOD: The study included 65 (35 primary total replacement and 30 complex total hip replacement) cases of total hip replacement using avantage privilege dual mobility cup system from biomet. A cemented acetabular component and on femoral side a bimetric stem, either cemented or uncemented used depending on the canal type...
2016: SICOT-J
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