Safety and Efficacy of Hemispherical with Flattened Pole Dual-Mobility Acetabular Cup in Primary Hip Arthroplasty: The SYMCOR-1 study

Abstract Background: This study estimated the short-term clinical safety and efficacy of hemispherical with flattened pole cobalt-chromium metal-back dual-mobility acetabular cup with porous outer hydroxyapatite coating and anchoring screw and pods (HFPC-DMR-HA) or cement fixation (HFPC-DM-CEM), in revision or complex total hip arthroplasty.Methods: Single-center retrospective observational cohort study of consecutively operated patients who underwent THA with an HFPC-DMR-HA or HFPC-DM-CEM cup 2 years prior to study start. Prospective 2-year follow-up with letter and phone questionnaires.Results: Sampling frame: 203 patients including 9.85% in the two cohorts with 15 HFPC-DMR-HA and 5 HFPC-DM-CEM. 3 (20%) and 2 (40%) patients were lost to follow-up, respectively. Median age was 85.6 years (range: 45.1 ; 93.3) and 78.8 (range: 68.8 ; 86.9). Median follow-up (years): HFPC-DMR-HA: 2.3, HFPC-DM-CEM: 3.3. Clinical indications: HFPC-DMR-HA 67% revision & 33% primary THAs, HFPC-DM-CEM 100% revision. Primary endpoint: 2-year implant survival rate: HFPC-DMR-HA 93% [59, 99], HFPC-DM-CEM 100%. Prosthetic dislocation: HFPC-DMR-HA 1 (6.7%), HFPC-DM-CEM 0%. Secondary endpoint: Modified HHS (pain & functional subscore) improved with HFPC-DMR-HA from baseline 26.8 [14.9, 38.7] to 82.2 [73.5, 90.9] at 2-year follow-up (p<0.0001); HFPC-DM-CEM from 41.6 [24.9, 58.3] to 80.7 [55.8, 100].Conclusions: The authors deemed the short-term outcomes with these acetabular cups in revision or complex total hip arthroplasty to be satisfactory.Study registration: clinicaltrials.gov NCT04209426.

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Safety and Efficacy of Hemispherical with Flattened Pole Dual-Mobility Acetabular Cup in Revision or Complex Hip Arthroplasty: The SYMCOR-2 study

10.21203/rs.3.rs-23636/v1 ◽

2020 ◽

Author(s):

Gilles Estour ◽

Nicolas Bonin ◽

Schneider Loïc ◽

Olivier Guyen ◽

Frederic Christopher Daoud

Keyword(s):

Hip Arthroplasty ◽

Cobalt Chromium ◽

Sampling Frame ◽

Acetabular Cup ◽

Short Term ◽

Clinical Safety ◽

Dual Mobility ◽

Safety And Efficacy ◽

Total Hip

Abstract Background: This study estimated the short-term clinical safety and efficacy of hemispherical with flattened pole cobalt-chromium metal-back dual-mobility acetabular cup with porous outer hydroxyapatite coating and anchoring screw and pods (HFPC-DMR-HA) or cement fixation (HFPC-DM-CEM), in revision or complex total hip arthroplasty.Methods: Single-center retrospective observational cohort study of consecutively operated patients who underwent THA with an HFPC-DMR-HA or HFPC-DM-CEM cup 2 years prior to study start. Prospective 2-year follow-up with letter and phone questionnaires.Results: Sampling frame: 203 patients including 9.85% in the two cohorts with 15 HFPC-DMR-HA and 5 HFPC-DM-CEM. 3 (20%) and 2 (40%) patients were lost to follow-up, respectively. Median age was 85.6 years (range: 45.1 ; 93.3) and 78.8 (range: 68.8 ; 86.9). Median follow-up (years): HFPC-DMR-HA: 2.3, HFPC-DM-CEM: 3.3. Clinical indications: HFPC-DMR-HA 67% revision & 33% primary THAs, HFPC-DM-CEM 100% revision. Primary endpoint: 2-year implant survival rate: HFPC-DMR-HA 93% [59, 99], HFPC-DM-CEM 100%. Prosthetic dislocation: HFPC-DMR-HA 1 (6.7%), HFPC-DM-CEM 0%. Secondary endpoint: Modified HHS (pain & functional subscore) improved with HFPC-DMR-HA from baseline 26.8 [14.9, 38.7] to 82.2 [73.5, 90.9] at 2-year follow-up (p<0.0001); HFPC-DM-CEM from 41.6 [24.9, 58.3] to 80.7 [55.8, 100].Conclusions: The authors deemed the short-term outcomes with these acetabular cups in revision or complex total hip arthroplasty to be satisfactory.Study registration: clinicaltrials.gov NCT04209426.

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Safety of vitamin E-infused highwall liners for routine use in primary total hip arthroplasty: single centre, short-term follow-up of 1221 cases

Hip International ◽

10.1177/1120700020969644 ◽

2020 ◽

pp. 112070002096964

Author(s):

Kirill Gromov ◽

Nanna H Sillesen ◽

Thomas Kallemose ◽

Henrik Husted ◽

Henrik Malchau ◽

...

Keyword(s):

Patient Safety ◽

Vitamin E ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Single Centre ◽

Short Term ◽

Total Hip ◽

Arthroplasty Registry ◽

Primary Total Hip Arthroplasty

Background: Introduction of new implants should be monitored closely to capture any signs of compromising patient safety. Vitamin E infused highly-crosslinked polyethylene liners (VEPE) offer the potential for reduced wear. Highwall liners have been hypothesised to result in increased wear and potential liner fractures. The aim of this study was to determine the 3–7-year follow-up of highwall VEPE for primary total hip arthroplasty (THA), focusing on liner-related complications. Methods: We included 1221 consecutive THA operations from July 2010 to May 2014 with minimum follow-up of 3 (3.1–6.8) years Data collected included demographics, implant data, complications, reoperations, and deaths. Data were cross-referenced with the Danish Hip Arthroplasty Registry in order to ensure validity and completeness. Acetabular shell position was measured using Martell Hip Analysis Suite in a subgroup of 931 THAs. Results: Cumulative stem revision and shell revision at 3-year follow-up was 3.4% and 0.4% respectively. There were no revisions due to liner failure. Reason for revision included 11 dislocations, 15 soft-tissue revisions for infection, 44 stem revisions of which 34 were periprosthetic fractures and 13 shell revisions of which 6 were combined shell and stem revisions. Conclusion: Early follow-up of VEPE liners for primary THA have not shown any revisions associated with liner failure. Continued monitoring of new materials are necessary to capture any signs of compromised patient safety.

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Primary total hip arthroplasty with dual mobility socket to prevent dislocation: a 22-year follow-up of 240 hips

International Orthopaedics ◽

10.1007/s00264-011-1289-4 ◽

2011 ◽

Vol 36 (3) ◽

pp. 511-518 ◽

Cited By ~ 121

Author(s):

Bertrand Boyer ◽

Rémi Philippot ◽

Jean Geringer ◽

Frédéric Farizon

Keyword(s):

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Dual Mobility ◽

Total Hip ◽

Primary Total Hip Arthroplasty

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Total hip arthroplasty revision by dual-mobility acetabular cup cemented in a metal reinforcement: A 62 case series at a minimum 5 years’ follow-up

Orthopaedics & Traumatology Surgery & Research ◽

10.1016/j.otsr.2017.04.009 ◽

2017 ◽

Vol 103 (5) ◽

pp. 679-684 ◽

Cited By ~ 11

Author(s):

N. Lebeau ◽

M. Bayle ◽

R. Belhaouane ◽

M. Chelli ◽

E. Havet ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Case Series ◽

Acetabular Cup ◽

Dual Mobility ◽

Total Hip ◽

Arthroplasty Revision

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Do Cemented Dual-Mobility Cups Confer Stability for Patients at High Risk of Dislocation in Revision Total Hip Arthroplasty?

The Journal of Hip Surgery ◽

10.1055/s-0038-1661341 ◽

2018 ◽

Vol 02 (02) ◽

pp. 088-091 ◽

Cited By ~ 1

Author(s):

Perry Evangelista ◽

Kamil Okroj ◽

Darren Plummer ◽

Craig Della Valle ◽

Ran Schwarzkopf

Keyword(s):

High Risk ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Revision Surgery ◽

Revision Total Hip Arthroplasty ◽

Acetabular Cup ◽

Metal Shell ◽

Dual Mobility ◽

Total Hip

AbstractDislocation is among the most commonly reported complications following revision total hip arthroplasty. Dual-mobility bearings may lower the risk of dislocation. The authors report the results of a multicenter study evaluating the use of a dual-mobility acetabular cup design that was cemented into a metal shell as part of complex acetabular reconstructions or in cases where the risk of dislocation was felt to be high, such as isolated bearing exchanges. Eighteen patients were identified for being at high risk of dislocation who underwent cementation of a dual-mobility shell that is specifically made for cementation, into a fully porous metal revision acetabular cup (10 patients) or into a well-fixed cup at the time of revision without removal of the existing acetabular component (eight patients). Patients were assessed clinically and radiographically at a minimum of 2 years for the evidence of dislocation, revision surgery, and implant loosening. At a mean of 36 months (range, 25–56 months), one patient died and one was lost to follow-up. There were no known cases of hip dislocation. There was one repeat revision, for a deep infection treated with irrigation and debridement. The mean preoperative Harris Hip Score of 46 (range, 40–79) improved to a mean of 65 points (range, 41–97) at the most recent evaluation. Acetabular components were retained in 8 out of 18 cases and the dual-mobility shell was cemented into it. Cementation of a dual-mobility cup into a shell at the time of a revision surgery is a safe and reliable construct at minimum of 2 years for patients at high risk of dislocation. There were no complications related to the cementation of the cup into the metal shell. Longer follow-up is required to further assess the durability of this construct.

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The usefulness of dual mobility cups in primary total hip arthroplasty patients at a risk of dislocation

Scientific Reports ◽

10.1038/s41598-022-04774-2 ◽

2022 ◽

Vol 12 (1) ◽

Author(s):

Nam Hoon Moon ◽

Min Uk Do ◽

Jung Shin Kim ◽

Jae Seung Seo ◽

Won Chul Shin

Keyword(s):

Postoperative Complications ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Harris Hip Score ◽

Dual Mobility ◽

Total Hip ◽

Early Results ◽

Patient Reported ◽

Primary Total Hip Arthroplasty

AbstractThis study aimed to evaluate the early results of primary total hip arthroplasty (THA) using dual mobility (DM) cups in patients at a risk of dislocation and compare them with that of fixed bearing (FB) THA. This retrospective study included patients who had undergone primary THA between January 2016 and December 2018 and were at a risk of dislocation. A propensity score-matched analysis was conducted for 63 THA procedures with vitamin-E infused highly cross-linked polyethylene (VEPE) DM bearing and 63 THA procedures performed with FB from the same manufacturer for a mean follow-up period of 3.1 and 3.5 years, respectively. The radiologic outcomes at the last follow-up and incidence of postoperative complications were evaluated and compared statistically between the two groups. The modified Harris hip score (mHHS) was used to assess patient-reported outcomes. Postoperative dislocation occurred in 4 cases (6.3%) in the FB group, but did not occur in the DM group (p = 0.042). There was no difference in the radiologic outcomes and postoperative complications between the two groups. The mHHS at the last follow-up showed satisfactory outcomes in both the groups (DM group, 90.5; FB group, 88.1), without a statistical difference between the groups. The early results of THA using VEPE DM bearing showed better outcomes than that of THA with FB for patients at a risk of dislocation. A longer follow-up period is recommended to assess the stability and overall outcomes.

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Dislocation Rate at Short-term Follow-up after Revision Total Hip Arthroplasty with a Dual Mobility Component

The Duke Orthopaedic Journal ◽

10.5005/jp-journals-10017-1064 ◽

2016 ◽

Vol 6 (1) ◽

pp. 17-20 ◽

Cited By ~ 1

Author(s):

Samuel S Wellman ◽

David E Attarian ◽

Taylor R McClellan ◽

Roberto D Calderon ◽

Paul F Lachiewicz

Keyword(s):

Total Hip Arthroplasty ◽

Acetabular Component ◽

Hip Arthroplasty ◽

Dislocation Rate ◽

Revision Total Hip Arthroplasty ◽

Short Term ◽

Dual Mobility ◽

Total Hip ◽

Increased Risk

ABSTRACT Patients undergoing a revision total hip arthroplasty (THA) are at increased risk for dislocation. The literature suggests dual-mobility components may decrease the frequency of dislocation. We conducted a retrospective study of one type of dual mobility acetabular component implanted in 82 revision THA cases that were considered at increased risk for dislocation. Of the 82 hips, 58 had a mean follow-up of 12 months (3–28 months). The indication for revision was instability in 18 hips (31%), adverse metal-on-metal reaction in 13 hips (22%), reimplantation for infection in 11 hips (19%), and aseptic loosening of the acetabular component in 9 hips (16%). In the course of follow-up, 6 hips developed a deep infection requiring reoperation. There were no early hip dislocations. McClellan TR, Calderon RD, Bolognesi MP, Attarian DE, Lachiewicz PF, Wellman SS. Dislocation Rate at Short-term Follow-up after Revision Total Hip Arthroplasty with a Dual Mobility Component. The Duke Orthop J 2016;6(1):17-20.

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Dual Mobility Cups Present Promising Outcomes in Primary Total Hip Arthroplasty Patients At A Risk of Dislocation

10.21203/rs.3.rs-688254/v1 ◽

2021 ◽

Author(s):

Nam Hoon Moon ◽

Min Uk Do ◽

Jung Shin Kim ◽

Jae Seung Seo ◽

Won Chul Shin

Keyword(s):

Postoperative Complications ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Harris Hip Score ◽

Dual Mobility ◽

Total Hip ◽

Early Results ◽

Patient Reported ◽

Primary Total Hip Arthroplasty

Abstract Introduction This study aimed to evaluate the early results of primary total hip arthroplasty (THA) using dual mobility (DM) cups in patients at a risk of dislocation and compare them with that of fixed bearing (FB) THA. Materials and methods This retrospective study included patients who had undergone primary THA between January 2016 and December 2018 and were at a risk of dislocation. A propensity score-matched analysis was conducted for 63 THA procedures with vitamin-E infused highly cross-linked polyethylene (VEPE) DM bearing and 63 THA procedures performed with FB from the same manufacturer for a mean follow-up period of 3.1 and 3.5 years, respectively. The radiologic outcomes at the last follow-up and incidence of postoperative complications were evaluated and compared statistically between the two groups. The modified Harris hip score (mHHS) was used to assess patient-reported outcomes. Results Postoperative dislocation occurred in 4 cases (6.3%) in the FB group, but did not occur in the DM group (p = 0.042). There was no difference in the radiologic outcomes and postoperative complications between the two groups. The mHHS at the last follow-up showed satisfactory outcomes in both the groups (DM group, 90.5; FB group, 88.1), without a statistical difference between the groups. Conclusion The early results of THA using VEPE DM bearing showed better outcomes than that of THA with FB for patients at a risk of dislocation. A longer follow-up period is recommended to assess the stability and overall outcomes.

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