scholarly journals Preliminary Results of Total Hip Arthroplasty in Subjects at Risk for Dislocation Using a Novel Modular Cementless Dual-Mobility Cup. A Single-Center Prospective Study

Prosthesis ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 53-60
Author(s):  
Giuseppe Solarino ◽  
Filippo Simone ◽  
Antonello Panella ◽  
Arianna Carlet ◽  
Flavia Riefoli ◽  
...  
Keyword(s):  
At Risk ◽  
Total Hip Arthroplasty ◽  
Prospective Study ◽  
Hip Arthroplasty ◽  
Mean Value ◽  
Harris Hip Score ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip

Nowadays total hip arthroplasty (THA) is widely considered the operation of the century in orthopedic and traumatological fields. Despite this fact, instability and dislocation after THA are a common reason for revision surgery. The purpose of this prospective study is to evaluate the preliminary clinical and radiological results of a novel dual mobility cup. We evaluated 32 consecutive cases of patients who underwent THA using a novel dual mobility cup—with holes in the cup, a modular metallic inlay and a crosslinked polyethylene. All of them were considered at risk of instability of the implant due to primary or concomitant diagnosis. The preoperative Harris hip score was 54.7 on average. At a minimum 2 years follow-up, the mean HHS raised up to a mean value of 88.4; this improvement was statistically significant (p < 0.0001). None of the patients enrolled in this study sustained a postoperative dislocation at a mean follow-up of 39.6 months. Furthermore, no patients sustained modular liner dissociation or an intraprosthetic dislocation. As such, survivorship free from dislocation was 100% at both 2 and 5 years. This study demonstrates that the modular dual mobility (DM) socket provides dual articulation, larger jump distance, and greater range of motion before impingement, which significantly reduce the rate of dislocation.

scholarly journals Dual-Mobility Cup Total Hip Arthroplasty for Displaced Femoral Neck Fractures: A Retrospective Study With a Median Follow-Up of 5 Years

2021 ◽  
Vol 12 ◽  
pp. 215145932110132
Author(s):  
Zhenfa Zhang ◽  
Guixing Xu ◽  
Lei Cao ◽  
Wei Sun ◽  
Xianshang Zeng ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Hip Arthroplasty ◽  
Complication Rate ◽  
Femoral Neck Fractures ◽  
Harris Hip Score ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip

Introduction: Patient outcomes following modern dual-mobility cup total hip arthroplasty (DM-THA) remains a concern. Few reports have focused on the use of modern DM-THA in the setting of Asian populations for displaced osteoporotic femoral neck fractures (FNFs). This study aimed to investigate the outcomes of Chinese population with displaced osteoporotic FNFs initially treated with modern DM-THA. Materials and Methods: Data from 112 consecutive patients (112 hips) with displaced osteoporotic FNFs initially treated with modern DM-THA during 2011-2018 were retrospectively analyzed. Follow-ups were performed at 3 months, 6 months, 12 months, and then every 1 year after surgery. The primary endpoint was the Harris Hip Score (HHS); the secondary endpoint was the main orthopedic complication rate. Results: The mean HHS improved from 58.62 (±15.79) prior to surgery to 86.13 (±9.92) at the final follow-up. The main complication rate was 14.2% (16/112). Sixteen complications in 10 patients were recorded. Of the 16 complications, there were 2 (1.7%) cases requiring revision DM-THA, 3 (2.6%) cases of loosening, 2 (1.7%) cases of migration, 3 (2.6%) intra-prosthetic dislocation (IPD), 4 (3.5%) cases of tilting, and 2 (1.7%) cases of severe wear. The need for revision was attributed to prosthesis loosening associated with poor bony quality. Conclusion: In patients with displaced osteoporotic FNFs, DM-THA may yield favorable functional outcomes and a low rate of main orthopedic complications, in particular, a low dislocation rate.

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

2020 ◽  
Vol 04 (02) ◽  
pp. 090-093
Author(s):  
John M. Tarazi ◽  
Hytham S. Salem ◽  
Joseph O. Ehiorobo ◽  
Nipun Sodhi ◽  
Luke J. Garbarino ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Study Cohort ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip ◽  
Patient Reported ◽  
Dual Mobility Cups ◽  
Metallic Liner

AbstractModular 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.

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

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.

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

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.

scholarly journals Role of Biplane Double Supported Screw Fixation For Fracture Neck Femur In Elderly Population: A Prospective Study

2018 ◽  
Vol 12 (1) ◽  
pp. 514-524
Author(s):  
Anoop Kalia ◽  
Jagdeep Singh ◽  
Nasir Ali
Keyword(s):  
Total Hip Arthroplasty ◽  
Prospective Study ◽  
Hip Arthroplasty ◽  
Screw Fixation ◽  
Harris Hip Score ◽  
Total Hip ◽  
Fracture Neck Femur ◽  
The Mean ◽  
A Prospective Study

Introduction: The treatment of fracture neck femur varies according to the age of patient, the displacement of fracture fragments and the duration of the fracture. Various treatment options available for elderly are screw fixation, hemiarthroplasty and total hip arthroplasty. Materials and Methods: This is a prospective study done at authors institutes between January 2014- December 2016. 30 patients aged more than 50 years who sustained fracture neck femur were included in the study. 3 patients were lost to follow up and 2 patients died due to medical comorbidities. Out of the 25 remaining patients, 17 were males and 8 were females and they were operated by the biplane double supported screw fixation method (BDSF TECHNIQUE) and were followed up for a period of two years. The final Harris Hip Score at the last follow up was calculated. Results: Out of the 25 patients, the union was achieved in all the patients. The mean duration of union was 10 weeks. 1 patient had progressive femoral head resorption due to chondrolysis resulting in antalgic gait and unbearable pain and underwent total hip arthroplasty. The mean harris hip score was 81.2 Conclusion: In elderly patients with osteoporosis and in those patients who can not afford arthroplasty or in those patients where arthroplasty is contraindicated, BDSF method is an alternate method for fixing fracture neck femur.

scholarly journals Cemented Dual Mobility Cup for Primary Total Hip Arthroplasty in Elder Patients with High-Risk Instability

Geriatrics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 23
Author(s):  
José María Lamo-Espinosa ◽  
Jorge Gómez-Álvarez ◽  
Javier Gatica ◽  
Álvaro Suárez ◽  
Victoria Moreno ◽  
...  
Keyword(s):  
Risk Factors ◽  
High Risk ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Demographic Data ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip ◽  
Elder Patients

Several studies have shown that double mobility (DM) cups reduce postoperative dislocations. Does the cemented dual mobility cup reduce dislocations in a specific cohort of elder patients with a high dislocation risk? Our hypothesis is that this implant is optimal for elder patients because it reduces early dislocation. We have retrospectively reviewed elder patients who underwent total hip arthroplasty (THA) with cemented double mobility cup between March 2009 and January 2018. The inclusion criteria were patients (>75 years) who were operated on for primary THA (osteoarthritis or necrosis) with a cemented dual mobility cup and a high-risk instability (at least two patient-dependent risk factors for instability). The exclusion criteria were revision surgeries or hip fracture. In all the cases, the same surgical approach was performed with a Watson Jones modified approach in supine position. We have collected demographic data, instability risk factors. Patients were classified using the Devane’s score, Merle d’Aubigné score and the patient’s likelihood of falling with the Morse Fall Scale. Surgical and follow-up complications were collected from their medical history. Sixty-eight arthroplasties (68 patients) were included in the study. The median age was 81.7 years (SD 6.4), and the American Society of Anesthesiologists (ASA) score showed a distribution: II 27.94%, III 63.24% and IV 8.82%. Devane’s score was less than five in all of the cases. At least two patient-dependent risk factors for instability (87% had three or more) were present in each case. The median follow-up time was 49.04 months (SD 22.6). Complications observed were two cases of infection and one case of aseptic loosening at 15 months which required revision surgery. We did not observe any prosthetic dislocation. The cemented dual mobility cup is an excellent surgical option on primary total hip arthroplasties for elder patients with high-risk instability.

Total hip arthroplasty with dual mobility cup in osteonecrosis of the femoral head in young patients: over ten years of follow-up

2016 ◽  
Vol 41 (3) ◽  
pp. 605-610 ◽  
Author(s):  
Pierre Martz ◽  
Alexandre Maczynski ◽  
Sebastien Elsair ◽  
Ludovic Labattut ◽  
Brice Viard ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Young Patients ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip

Dual-mobility cup in total hip arthroplasty in patients less than fifty five years and over ten years of follow-up

2016 ◽  
Vol 41 (3) ◽  
pp. 475-480 ◽  
Author(s):  
Jean-Marc Puch ◽  
Guy Derhi ◽  
Loys Descamps ◽  
Régis Verdier ◽  
Jacques H. Caton
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip

scholarly journals Early results of total hip arthroplasty using dual-mobility cup in patients with osteonecrosis of the femoral head

SICOT-J ◽  
2018 ◽  
Vol 4 ◽  
pp. 4 ◽  
Author(s):  
Chahine Assi ◽  
Nadim Kheir ◽  
Camille Samaha ◽  
Pascal Kouyoumdjian ◽  
Kaissar Yammine
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Dual Mobility Cup ◽  
Dual Mobility ◽  
Total Hip ◽  
Early Results ◽  
Harris Score ◽  
The Mean

Introduction: Osteonecrosis of the femoral head (ONFH) remains a therapeutic challenge for patients undergoing total hip arthroplasty (THA). The majority of these patients are young with high functional demand, and show an increased risk of dislocation following surgery than patients with osteoarthritis. The use of double mobility cup (DMC) has been linked with lower rates of complications when compared to conservative cups; however, the literature is scarce over DMC results in patients with ONFH. The aim of the study is to report the early outcomes of patients with ONFH treated with THA-DMC. Materials: A retrospective analysis of patients suffering from ONFH who underwent THA using DMC (THA-DMC) from 2006 to 2015 were evaluated for functional status and risk of post-operative complications. Thirty THA-DMC in 26 patients with a mean follow-up of 51 months were evaluated clinically (modified Hip Harris Score) and radiologically. Results: The mean age of the included patients was 54.9 years. At final follow-up, the mean modified Hip Harris score was 98.7 ± 2.7 and no dislocation episodes or revision surgeries were recorded. The radiological assessment revealed no signs of migration/tilting, radiolucent lines, periprosthetic osteolysis or heterotopic ossification over the DMC component and the femoral stem. The survival rate over 51 months of follow-up was 100%. Discussion: The use of the new generation of dual mobility cup in patients with ONFH showed excellent functional early results with no major complications such as dislocation.

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