Low Frequency of Early Complications With Dual-mobility Acetabular Cups in Cementless Primary THA

Chughtai, Morad; Diedrich, Aloise M.; Jauregui, Julio J.; Elmallah, Randa K.; Bonutti, Peter M.; Harwin, Steven F.; Malkani, Arthur L.; Kolisek, Frank R.; Mont, Michael A.

doi:10.1007/s11999-016-4811-6

Cited by 41 publications

(32 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chughtai et al. (2016) reported 453 primary DMC THA with 2 septic revisions after 2 years. Differences in patient characteristics and particularly comorbidities are probably the explanation for our high amount (0.3%) of revisions due to suspected infection (Radtke et al.…”

Section: Discussionmentioning

confidence: 99%

Dual mobility cups in primary total hip arthroplasties: trend over time in use, patient characteristics, and mid-term revision in 3,038 cases in the Dutch Arthroplasty Register (2007–2016)

2018

View full text Add to dashboard Cite

Background and purpose — We noticed an increased use of dual mobility cups (DMC) in primary total hip arthroplasty (THA) despite limited knowledge of implant longevity. Therefore, we determined the trend over time and mid-term cup revision rates of DMC compared with unipolar cups (UC) in primary THA.Patients and methods — All primary THA registered in the Dutch Arthroplasty Register (LROI) during 2007–2016 were included (n = 215,953) and divided into 2 groups — DMC THA (n = 3,038) and UC THA (n = 212,915). Crude competing risk and multivariable Cox regression analyses were performed with cup revision for any reason as primary endpoint. Adjustments were made for sex, age, diagnosis at primary THA, previous operation, ASA score, type of fixation, surgical approach, and femoral head size.Results — The proportion of primary DMC THA increased from 0.8% (n = 184) in 2010 to 2.6% (n = 740) in 2016. Patients who underwent DMC THA more often had a previous operation on the affected hip, a higher ASA score, and the diagnosis acute fracture or late posttraumatic status compared with the UC THA group. Overall 5-year cup revision rate was 1.5% (95% CI 1.0–2.3) for DMC and 1.4% (CI 1.3–1.4) for UC THA. Stratified analyses for patient characteristics showed no differences in cup revision rates between the 2 groups. Multivariable regression analyses showed no statistically significantly increased risk for revision for DMC THA (HR 0.9 [0.6–1.2]).Interpretation — The use of primary DMC THA increased with differences in patient characteristics. The 5-year cup revision rates for DMC THA and UC THA were comparable.

show abstract

Section: Discussionmentioning

confidence: 99%

Dual mobility cups in primary total hip arthroplasties: trend over time in use, patient characteristics, and mid-term revision in 3,038 cases in the Dutch Arthroplasty Register (2007–2016)

2018

View full text Add to dashboard Cite

show abstract

“…As noted previously, the results of this study are similar to that of a recent multicenter study that evaluated 453 primary THA patients who received the modular dual mobility articulation where aseptic and all-cause survivorship was found to be 99.6% (95% CI, 99.1-99.9%) and 99.2% (95% CI, 98.5-99.9%), respectively. 13 Similar to this 7-year minimum follow-up study, Farizon et al 14 reported 0.7% dislocation rate on 135 cementless dual mobility hips at a minimum follow-up of 10 years with 95% implant survivorship at 12 years following THA. In an analysis of 150 dual mobility THAs, Bauchu et al 15 also demonstrated a cup survivorship of 97% and a dislocation rate of 0% after a mean follow-up period of 6 years.…”

Section: Discussionmentioning

confidence: 55%

“…With a cup survivorship of 100% in the younger group and 99.7% in patients above 70 years of age, Epinette et al demonstrated that good implant fixation with no evidence of migration, osteolysis, or intraprosthetic dislocation can be achieved with dual mobility cup THA. 16 Similarly, Chughtai et al 13 did not report any incidences of progressive radiolucencies or positional changes of components at the latest follow-up. And, in respect to clinical outcomes, Chughtai et al 13 reported a mean HHS score of 94 AE 6 points after a mean follow-up of 3 AE 1 years in 453 patients who underwent primary THA with a modular dual mobility cup construct.…”

Section: Discussionmentioning

confidence: 95%

“…16 Similarly, Chughtai et al 13 did not report any incidences of progressive radiolucencies or positional changes of components at the latest follow-up. And, in respect to clinical outcomes, Chughtai et al 13 reported a mean HHS score of 94 AE 6 points after a mean follow-up of 3 AE 1 years in 453 patients who underwent primary THA with a modular dual mobility cup construct.…”

Section: Discussionmentioning

confidence: 95%

See 1 more Smart Citation

Minimum 7-Year Outcomes of Dual Mobility Acetabular Cups in Total Hip Arthroplasty Patients

Tarazi

Salem

Ehiorobo

et al. 2020

The Journal of Hip Surgery

Self Cite

View full text Add to dashboard Cite

Modular dual mobility cups have been developed to potentially address postoperative hip instability, which can occur in nearly 20% of all revision total hip arthroplasty (THA) patients. By having a prosthetic construct that contains two points of articulation between the femoral head and liner and between the liner and shell, joint stability can be increased. The purpose of this study was to report on dual mobility cup survivorships, patient satisfaction outcomes, complications, and radiographic outcomes at a minimum 7-year follow-up. A high-volume academic surgeon performed a total of 143 consecutive dual mobility primary THAs on patients who had a minimum follow-up of 7 years (range, 7–8.5 years). The study cohort consisted of 77 females (54%) and 66 males (46%) who had a mean age of 65 years (range, 34–90 years). Aseptic, septic, and all-cause survivorship was determined by Kaplan-Meier analysis. Harris Hip Scores (HHS), postoperative complications, and radiographs were also assessed. No cup failures were observed. Overall, septic survivorship was 99.3% (95% confidence interval [CI]: 0.98–1.0) and all-cause survivorship was 98.6% (95% CI: 0.97–1.0). Two patients (1.4%) required revision surgery unrelated to the use of a modular dual mobility cup. Of these, one patient experienced femoral stem loosening and the other developed a periprosthetic infection that was treated with a two-stage revision. The mean total HHS was above 95 points at the most recent follow-up. Three patients (2.3%) experienced medical complications, including two deep vein thromboses and one for nonfatal pulmonary embolism. Radiographic evidence revealed incomplete seating of the metallic liner in one patient. Dual mobility cups were developed in an attempt to decrease the rate of instability following THA. The results from this study indicate that excellent clinical and patient-reported outcomes can be achieved at 7-year follow-up in patients who undergo THA with a dual mobility cup. Therefore, dual mobility cups appear to be an appropriate treatment option for primary THA.

show abstract

“…Chughtai et al. [9] also found a dislocation rate of 0% for the MDM implant at 3-year follow-up and a survivorship of 99.3%, which is consistent without 98%. All 3 studies had a 0% revision rate due to mechanical revisions, which is consistent with our revision rates of 0% in the ADM group and 0% in the MDM group due to acetabular-specific revisions.…”

Section: Discussionmentioning

confidence: 67%

Anatomic dual mobility compared to modular dual mobility in primary total hip arthroplasty: a matched cohort study

Dubin

Westrich

2019

Arthroplasty Today

View full text Add to dashboard Cite

Background: Dual mobility (DM) has been used in primary total hip arthroplasty recently for their low dislocation rates, low revision rates, and improved patient functional outcomes. We compared 2 DM systems, anatomic dual mobility (ADM; Stryker, Mahwah, NJ) and modular dual mobility (MDM; Stryker, Mahwah, NJ), to determine differences in dislocation rates, revision rates, and patient outcome scores. Methods: The study was a single-center matched retrospective review of prospectively collected data of patients who underwent primary total hip arthroplasty surgery with an ADM or MDM system by a single surgeon from 2012 to 2017. Demographics, operative details, postoperative patient-reported outcomes, and clinical outcomes were recorded. A Kaplan-Meier survivorship curve to compare survival time between groups was collected as well. Results: Five hundred seventy-four patients were included in the study with 287 patients matched in each group with mean 2.86 years of follow-up. The dislocation rate in each cohort was 0%, the acetabularspecific revision rate was 0%, and in each cohort, overall revision rate in each cohort was 1.7%. In general, patient-reported outcomes were similar for each group (Harris Hip Score Pain (P ¼ .919), Harris Hip Score Function (P ¼ .736), Western Ontario and McMaster Universities Osteoarthritis Index (P ¼ .139), Pain Visual Analog Scale (P ¼ .146), Veterans RAND 12-Item Health Survey (P ¼ .99), University of California, Los Angeles (P ¼ .417), and Harris Hip Score Total (P ¼ .136). There was a slight clinically insignificant increase in hip flexion between the cohorts favoring the ADM group (98.6 ± 9.8 vs 94.0 ± 9.7, P < .001). Conclusions: Both DM systems had similar patient-reported outcomes that were quite favorable. At 2.86 years of follow-up, neither the ADM nor MDM systems demonstrated dislocation, and both had low acetabular-specific and overall revision rates in this matched cohort study.

show abstract

Low Frequency of Early Complications With Dual-mobility Acetabular Cups in Cementless Primary THA

Cited by 41 publications

References 28 publications

Dual mobility cups in primary total hip arthroplasties: trend over time in use, patient characteristics, and mid-term revision in 3,038 cases in the Dutch Arthroplasty Register (2007–2016)

Dual mobility cups in primary total hip arthroplasties: trend over time in use, patient characteristics, and mid-term revision in 3,038 cases in the Dutch Arthroplasty Register (2007–2016)

Minimum 7-Year Outcomes of Dual Mobility Acetabular Cups in Total Hip Arthroplasty Patients

Anatomic dual mobility compared to modular dual mobility in primary total hip arthroplasty: a matched cohort study

Contact Info

Product

Resources

About