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Constrained liner tha

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https://www.readbyqxmd.com/read/27739571/short-term-results-with-a-constrained-acetabular-liner-in-patients-at-high-risk-of-dislocation-after-primary-total-hip-arthroplasty
#1
Kathryn Gill, Sarah L Whitehouse, Matthew J W Hubble, Matthew J Wilson
BACKGROUND: Dislocation following primary total hip arthroplasty (THA) is a complication with an incidence of 2%-5%. This study examines the clinical and radiological outcome of a constrained acetabular implant used in primary THA in high-risk patients to prevent dislocation. METHODS: 54 patients with 55 constrained implants for primary THA were reviewed clinically and radiologically. Oxford, Harris Hip and Charlson scores were recorded. RESULTS: 54 patients, with an average age of 83...
October 8, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27378637/outcome-of-revision-total-hip-arthroplasty-in-management-of-failed-metal-on-metal-hip-arthroplasty
#2
Wael A Rahman, Tomás Amenábar, Bandar M Hetaimish, Oleg A Safir, Paul R Kuzyk, Allan E Gross
BACKGROUND: This is a retrospective review of the functional outcomes and complications of revision total hip arthroplasty (THA) of failed metal-on-metal (MoM) hip arthroplasty. METHODS: A total of 20 revision THAs were performed in 19 patients. Of them, 2 cases were failed hip resurfacing, and 18 cases were failed (MoM) THA. The mean age at revision (THA) was 59.35 years (standard deviation [SD] 9.83). RESULTS: The mean follow-up was 45 months (SD 13...
November 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27225703/corr-insights-%C3%A2-dual-mobility-or-constrained-liners-are-more-effective-than-preoperative-bariatric-surgery-in-prevention-of-tha-dislocation
#3
William G Hamilton
No abstract text is available yet for this article.
October 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27132533/single-component-revisions-are-associated-with-dislocation-after-revision-total-hip-arthroplasty-at-intermediate-term-follow-up
#4
Roman C Stedman, Daniel Lim, Adeel Husain, Paul M Courtney, Charles L Nelson
PURPOSE: Dislocation is the most frequent complication following revision total hip arthroplasty (THA). Although several risk factors for dislocation in revision THA have been described, many cannot be modified at the time of surgery. Identifying modifiable risk factors for subsequent dislocation after revision THA provides opportunity for orthopedic surgeons to decrease instability. METHODS: A retrospective analysis of 203 consecutive revision THA procedures performed by a single surgeon with a minimum 2-year follow-up between May 2003 and June 2012 was performed...
May 16, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27130648/dual-mobility-or-constrained-liners-are-more-effective-than-preoperative-bariatric-surgery-in-prevention-of-tha-dislocation
#5
Philippe Hernigou, Matthieu Trousselier, François Roubineau, Charlie Bouthors, Charles Henri Flouzat Lachaniette
BACKGROUND: Obesity is associated with an increased risk of dislocation after total hip arthroplasty (THA). However, in patients with obesity, it is not known whether the risk is only in the early postoperative period or whether it persists several years after surgery, and whether having bariatric surgery before undergoing THA and/or receiving a specific device (such as a dual-mobility or constrained acetabular liner) is more effective in terms of decreasing the risk of dislocation. QUESTION/PURPOSES: (1) What is the cumulative risk of dislocation in patients with obesity after THA in the absence of a dual-mobility or constrained liner, and is this related to component positioning? (2) Does bariatric surgery before undergoing THA decrease dislocation risk in patients with obesity? (3) Are dual-mobility and constrained liners efficient in preventing dislocation in patients with obesity? METHODS: At our university-based practice, all surgeons adhered to the following treatment approaches: Before 2000 no dual-mobility implants or constrained liners were used for primary THAs...
October 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/26130279/complications-following-conversion-of-a-hip-hemiarthroplasty-to-a-total-hip-arthroplasty
#6
Simcha G Fichman, Tatu J Mäkinen, Alex Vincent, Benjamin Lozano, Oleg Safir, Paul R T Kuzyk
PURPOSE: Conversion of hip hemiarthroplasty to total hip arthroplasty (CTHA) is a complication-prone procedure with high dislocation rates and early component loosening. The purpose of this study was to evaluate the complications of CTHA performed using contemporary implants. METHODS: Forty-six patients who had CTHA were retrospectively matched to a control group of 46 patients who had a first-time THA revision. The mean follow-up was 47 (range 6-149) and 23 (range 6-139) months for CTHA and control groups, respectively...
December 2015: International Orthopaedics
https://www.readbyqxmd.com/read/25686783/the-cumulative-risk-of-re-dislocation-after-revision-tha-performed-for-instability-increases-close-to-35-at-15years
#7
Suenghwan Jo, Jose H Jimenez Almonte, Rafael J Sierra
A retrospective analysis was conducted on 539 hips undergoing revision total hip arthroplasty done for instability to report the cumulative risk and factors associated with re-dislocation and re-revision. The cumulative risk of re-dislocation and re-revision for all cause was 34.5% and 45.9% at 15 years, respectively. Multiple variable analyses revealed history of 2 or more previous surgeries, use of head size less than 36 mm, and cup retention to be risk factors for re-dislocation and re-revision. The use of a constrained liner was protective against re-dislocation but was not associated with a lower re-revision rate...
July 2015: Journal of Arthroplasty
https://www.readbyqxmd.com/read/24471147/failure-of-a-constrained-acetabular-liner-without-reinforcement-ring-disruption
#8
REVIEW
Jeffrey A Arthur, Derek F Amanatullah, Gannon D Kennedy, Paul E Di Cesare
Several risk factors for dislocation after total hip arthroplasty (THA) have been identified including operative-, patient-, and implant-related factors. The following case report describes the dislocation of a revision THA without disruption of the constrained liner or containment ring. The possible mechanisms leading to this type of failure include lever-out impingement and poor abductor function, or tension secondary to prior surgery. Dislocation without disruption of containment ring has not been described for the Pinnacle Acetabular Cup with the Enhanced Stability Constrained Liner (DePuy Orthopaedics, Warsaw, Indiana)...
December 2013: American Journal of Orthopedics
https://www.readbyqxmd.com/read/24150890/efficacy-of-revision-surgery-for-the-dislocating-total-hip-arthroplasty-report-from-a-large-community-registry
#9
Tiare Salassa, Daniel Hoeffel, Susan Mehle, Penny Tatman, Terence J Gioe
BACKGROUND: Historically, achieving stability for the unstable total hip arthroplasty (THA) with revision surgery has been achieved inconsistently. Most of what we know about this topic comes from reports of high-volume surgeons' results; the degree to which these results are achieved in the community is largely unknown, but insofar as most joint replacements are done by community surgeons, the issue is important. QUESTIONS/PURPOSES: We used a community joint registry to determine: (1) the frequency of repeat revision after surgery to treat the unstable THA; (2) what surgical approaches to this problem are in common use in the community now; (3) are there differences in repeat revision frequency that vary by approach used; and (4) has the frequency of repeat revision decreased over time as surgical technique and implant options have evolved? METHODS: We reviewed 6801 primary THAs performed in our community joint registry over the last 20 years...
March 2014: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/23890966/primary-total-hip-arthroplasty-revision-due-to-dislocation-prospective-french-multicenter-study
#10
MULTICENTER STUDY
J Girard, G Kern, H Migaud, C Delaunay, N Ramdane, M Hamadouche
INTRODUCTION: Dislocation following total hip arthroplasty (THA) may require surgical revision, and is one of the most frequent causes for revision in national registers. The goals of this study were to determine the characteristics of revision THA for dislocation and identify the typical features of hips revised due to dislocation. MATERIALS AND METHODS: A prospective multicenter study (30 centers) was performed in first revision THA performed between January 1, 2010 and December 31, 2011 (multiple revisions were excluded)...
September 2013: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/23423623/acetabular-liner-with-focal-constraint-to-prevent-dislocation-after-tha
#11
Jacob T Munro, Mihai H Vioreanu, Bassam A Masri, Clive P Duncan
BACKGROUND: Dislocation continues to commonly cause failure after primary and revision total hip arthroplasty (THA). Fully constrained liners intended to prevent dislocation are nonetheless associated with a substantial incidence of failure by redislocation, mechanical failure, aseptic loosening, or a combination. Constrained liners with cutouts of the elevated rims can theoretically increase range of movement and therefore decrease the risk dislocation, but it is unclear if they do so in practice and whether they are associated with early wear or loosening...
December 2013: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/22956236/risk-factors-for-dislocation-after-revision-total-hip-arthroplasty
#12
Nathan G Wetters, Trevor G Murray, Mario Moric, Scott M Sporer, Wayne G Paprosky, Craig J Della Valle
BACKGROUND: Despite dislocation being the most frequent complication after revision THA, risk factors for its occurrence are not completely understood. QUESTIONS/PURPOSES: We therefore (1) determined the overall risk of dislocation after revision THA in a large series of revision THAs using contemporary revision techniques, (2) identified patient-related risk factors predicting dislocation, and (3) identified surgical variables predicting dislocation. METHODS: We performed 1211 revision THAs between June 2004 and October 2010 in 576 women and 415 men who had a mean age of 64...
February 2013: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/22933694/mating-of-a-prostalac-spacer-with-an-intramedullary-nail-for-reconstruction-of-an-infected-interprosthetic-femoral-shaft-fracture-a-case-report
#13
Atul F Kamath, Daniel Austin, Gwo-Chin Lee
Reconstruction for concurrent infection of an ipsilateral total hip arthroplasty (THA) and total knee arthroplasty (TKA) is a challenge. We report a 2-stage reconstruction of a THA for chronic infection of both the THA and TKA with severe femoral bone loss secondary to interprosthetic fractures. The reconstruction involved using a custom-made, temporary, antibiotic-impregnated PROSTALAC spacer mated with an intramedullary nail. The acetabulum was then exposed and the necrotic cartilage was removed and curetted...
August 2012: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/22919568/instability-after-total-hip-arthroplasty
#14
Brian C Werner, Thomas E Brown
Instability following total hip arthroplasty (THA) is an unfortunately frequent and serious problem that requires thorough evaluation and preoperative planning before surgical intervention. Prevention through optimal index surgery is of great importance, as the management of an unstable THA is challenging even for an experienced joints surgeon. However, even after well-planned surgery, a significant incidence of recurrent instability still exists. Non-operative management is often successful if the components are well-fixed and correctly positioned in the absence of neurocognitive disorders...
August 18, 2012: World Journal of Orthopedics
https://www.readbyqxmd.com/read/22523941/failure-mechanism-of-a-constrained-liner-a-case-report
#15
Rui Niimi, Akihiro Sudo, Masahiro Hasegawa, Atsumasa Uchida
Instability after primary and revision total hip arthroplasty continues to be a problem. The use of a constrained system helps manage this problem. A new constrained total hip arthroplasty, Trilogy constrained liner (Zimmer, Warsaw, IN), is currently in use. We report a case showing dislocation following a Trilogy constrained total hip arthroplasty. In this case, when an impingement between the femoral neck and the anterior part of the polyethylene liner occurred, the hip dislocated easily although both polyethylene and reinforcing ring were properly positioned...
February 2012: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/22385438/cancellous-impaction-bone-grafting-of-acetabular-defects-in-complex-primary-and-revision-total-hip-arthroplasty
#16
Nilesh Patil, Katherine Hwang, Stuart B Goodman
The reconstruction of major acetabular bone defects during revision, conversion, and primary total hip arthroplasties (THAs) is challenging. We reviewed a consecutive series of 168 THAs (108 revisions, 8 conversions, and 52 primary THAs) performed by 1 surgeon (S.B.G.) between 1997 and 2008 using impaction bone grafting for acetabular reconstruction. Autograft, cancellous allograft croutons, and demineralized bone matrix were used to fill bone defects as needed. The acetabular bone deficiency was classified according to the American Academy of Orthopaedic Surgeons: type I, segmental deficiency with significant rim defect; type II, cavitary defects medially or posteriorly; type III, combined cavitary and segmental deficiency; type IV, pelvic discontinuity; and type V, arthrodesis...
March 2012: Orthopedics
https://www.readbyqxmd.com/read/22310415/cement-in-cement-acetabular-revision-with-a-constrained-tripolar-component
#17
Andreas Leonidou, Joseph Pagkalos, Jonathan Luscombe
Dislocation of a total hip replacement (THR) is common following total hip arthroplasty (THA). When nonoperative management fails to maintain reduction, revision surgery is considered. The use of constrained acetabular liners has been extensively described. Complete removal of the old cement mantle during revision THA can be challenging and is associated with significant complications. Cement-in-cement revision is an established technique. However, the available clinical and experimental studies focus on femoral stem revision...
February 2012: Orthopedics
https://www.readbyqxmd.com/read/22179979/constrained-cups-appear-incapable-of-meeting-the-demands-of-revision-tha
#18
Philip C Noble, Salim K Durrani, Molly M Usrey, Kenneth B Mathis, Nikolaos V Bardakos
BACKGROUND: Failure rates of constrained cups for treating recurrent dislocation in revision THA range from 40% to 100%. Although constrained liners are intended to stabilize the hip by mechanically preventing dislocation, the resulting loss of range of motion may lead to impingement and, ultimately, implant failure. QUESTIONS/PURPOSES: We therefore documented the mechanisms of failure of constrained acetabular cups in revision THA and determined the type and severity of damage (wear, fracture, and impingement) that occurs in situ...
July 2012: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/21782540/total-hip-arthroplasty-dislocation-rate-following-isolated-cup-revision-using-hueter-s-direct-anterior-approach-on-a-fracture-table
#19
A Cogan, S Klouche, P Mamoudy, E Sariali
INTRODUCTION: Instability is a major complication after revision total hip arthroplasty. Studies in the literature have shown that the dislocation rate after primary arthroplasties by anterior approach on a fracture table is satisfactory, but the rate of instability following revision surgery is not known. HYPOTHESIS AND AIMS: We hypothesized that the Hueter direct anterior approach would result in a lower rate of postoperative dislocation following revision surgery...
September 2011: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/21550768/revision-for-recurrent-instability-what-are-the-predictors-of-failure
#20
Aaron H Carter, Eoin C Sheehan, S M Javad Mortazavi, James J Purtill, Peter F Sharkey, Javad Parvizi
Dislocation is a common complication following total hip arthroplasty (THA). In this study, we evaluated treatment strategies in patients undergoing revision THA for instability. A total of 156 hips in 154 patients underwent revision THA for instability between 2000 and 2007 at our institution. Demographic data and surgical treatment used were analyzed to determine risk factors for failure. Revision treatments included acetabular components in 100 hips, liner exchange in 56 hips, and femoral and acetabular components in 13 hips...
September 2011: Journal of Arthroplasty
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