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Regis D, Cason M, Magnan B. Dislocation of primary total hip arthroplasty: Analysis of risk factors and preventive options. World J Orthop 2024; 15:501-511. [DOI: 10.5312/wjo.v15.i6.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/10/2024] [Accepted: 05/27/2024] [Indexed: 06/12/2024] Open
Abstract
Total hip arthroplasty (THA) is one of the most successful elective operations in orthopedic surgery for improving pain and functional disability in patients with end-stage joint disease. However, dislocation continues to be a troublesome complication after THA, as it is a leading cause of revision and is associated with substantial social, health, and economic costs. It is a relatively rare, usually early occurrence that depends on both the patients’ characteristics and the surgical aspects. The most recent and important finding is the special attention to be given preoperatively to spinopelvic mobility, which is closely related to the incidence of dislocation. Consequently, clinical and radiographic assessment of the lumbar spine is mandatory to identify an altered pelvic tilt that could suggest a different positioning of the cup. Lumbar spinal fusion is currently considered a risk factor for dislocation and revision regardless of whether it is performed prior to or after THA. Surgical options for its treatment and prevention include the use of prostheses with large diameter of femoral head size, dual mobility constructs, constrained liners, and modular neck stems.
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Affiliation(s)
- Dario Regis
- Department of Orthopedic and Trauma Surgery, Integrated University Hospital, Verona 37126, Veneto, Italy
| | - Mattia Cason
- Department of Orthopedic and Trauma Surgery, Integrated University Hospital, Verona 37126, Veneto, Italy
| | - Bruno Magnan
- Department of Orthopedic and Trauma Surgery, Integrated University Hospital, Verona 37126, Veneto, Italy
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Frey PE, Bühner C, Falkner F, Harhaus L, Panzram B. Mid- and long-term clinical results of the Elektra and Moovis prosthesis for trapeziometacarpal joint replacement. BMC Musculoskelet Disord 2024; 25:332. [PMID: 38664698 PMCID: PMC11044538 DOI: 10.1186/s12891-024-07439-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 04/12/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Total joint arthroplasty as a surgical treatment option for trapeziometacarpal joint arthritis is recently revived. The aim of this study is to report on mid- and long-term results of the Elektra (single-mobility) and Moovis (dual-mobility) prosthesis for treatment of primary thumb carpometacarpal joint arthritis. METHODS In this retrospective, monocentric, descriptive cohort study, 31 prostheses were evaluated that were implanted by a single surgeon in 26 patients between 2009 and 2019. Indication for surgery was trapeziometacarpal joint osteoarthritis (Eaton/Littler Stage II and III). Clinical and radiological follow-up was performed at a minimum of 24 months. The postoperative assessment included range of motion, pain, strength as well as functional scores (DASH, MHQ). Implant survival and complications were the primary endpoints. RESULTS 10 Elektra and 21 Moovis prostheses were implanted between 2009 and 2019 with a mean follow-up of 74.2 months in the Elektra and 41.4 months in the Moovis group. The average patients' age at surgery was 64 years. Postoperative pain levels (VAS 0-10) were below 2 at rest and under stress in both groups. Grip/pinch strength and range of motion showed results comparable to the contralateral hand. Opposition was excellent with an average Kapandji index of 9.6 in both groups. Elektra achieved slightly better functional scores in the DASH and MHQ score. Satisfaction was high in both groups, and 96% of the patients would recommend the procedure. Metacarpophalangeal hyperextension > 15° was seen in 3 patients per group preoperatively and was corrected to < 5° post-surgery. 3 Elektra prostheses were revised due to cup loosening and dislocation for cup and/or neck replacement or secondary trapeziectomy. 1 Moovis prosthesis was revised with an exchange of the neck to a larger size due to restricted movement. After the mean follow-up of 7.9 years in Elektra and 3.5 years in MOOVIS, cumulative survival was 68.6% vs. 95.2%, respectively. CONCLUSIONS In this mid- to long-term retrospective analysis, total joint arthroplasty in primary trapeziometacarpal joint arthritis results in low pain levels, excellent mobility and clinical function. Patient satisfaction is overall high. While revision due to cup loosening occurred more often in patients with single-mobility implants, no cases of dislocation or loosening of components were observed in the dual-mobility group. TRIAL REGISTRATION The study was conducted in accordance with the Declaration of Helsinki, and approved by the Ethics Committee of the Medical Faculty of Heidelberg University, reference number S-150/2020.
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Affiliation(s)
- Pia-Elena Frey
- Department of Orthopedics, University Hospital Heidelberg, Heidelberg, Germany.
| | - Christin Bühner
- Department of Orthopedics, University Hospital Heidelberg, Heidelberg, Germany
| | - Florian Falkner
- Department of Hand, Plastic and Reconstructive Surgery, Burn Care Centre, BG Trauma Center Ludwigshafen, Ludwigshafen, Germany
| | - Leila Harhaus
- Department of Hand, Plastic and Reconstructive Surgery, Burn Care Centre, BG Trauma Center Ludwigshafen, Ludwigshafen, Germany
| | - Benjamin Panzram
- Department of Orthopedics, University Hospital Heidelberg, Heidelberg, Germany
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Ridha M, Al-Jabri T, Stelzhammer T, Shah Z, Oragui E, Giannoudis PV. Osteosynthesis, hemiarthroplasty, total hip arthroplasty in hip fractures: All I need to know. Injury 2024; 55:111377. [PMID: 38324951 DOI: 10.1016/j.injury.2024.111377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Recent data from the UK's National Hip Fracture Database (NHFD) demonstrate an upward trajectory in the incidence of hip fractures, a trend which is expected to persist. In 2023 alone, the NHFD reported 72,160 cases, underscoring the prevalence of these injuries. These fractures are associated with significant morbidity, mortality, and economic costs. National guidelines for the surgical management of these fractures are established, although the implementation of total hip arthroplasty (THA) as a primary treatment modality varies. This review offers a narrative synthesis of contemporary literature on hip fractures, focusing on epidemiology, classification systems, and treatment options, with a particular emphasis on the outcomes of THA.
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Affiliation(s)
- Mohamed Ridha
- Joint Reconstruction Unit, The Royal National Orthopaedic Hospital, London, Stanmore, HA7 4LP, UK
| | - Talal Al-Jabri
- Trauma and Orthopaedic Surgery, Department of Surgery and Cancer, Imperial College London, London, SW7 2AZ, UK; Rorabeck Bourne Joint Replacement Institute, Schulich School of Medicine and Dentistry, London Health Sciences Centre, Western University, London, Ontario, Canada.
| | - Thomas Stelzhammer
- Trauma and Orthopaedics Department, Whittington Health NHS Trust, Magdala Avenue, London, N19 5NF, UK
| | - Zameer Shah
- Department of Orthopaedics, Guy's and St Thomas' NHS Trust, Westminster Bridge Road, London SE1 7EH, UK
| | - Emeka Oragui
- Chelsea and Westminster Hospital NHS Foundation Trust, 369 Fulham Rd., London SW10 9NH, UK
| | - Peter V Giannoudis
- Academic Department of Trauma and Orthopaedic Surgery, School of Medicine, University of Leeds, Clarendon Wing, Floor D, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK; NIHR Leeds Biomedical Research Centre, Chapel Allerton Hospital, Leeds, UK
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4
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Ballard T, Corbett A, Murphy JD, Judson W, Harker JN. A Missed Diagnosis of Intraprosthetic Dislocation in a Dual-Mobility Bearing Following Closed Reduction. Cureus 2023; 15:e49361. [PMID: 38143637 PMCID: PMC10749215 DOI: 10.7759/cureus.49361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2023] [Indexed: 12/26/2023] Open
Abstract
Dual-mobility bearings have been found to reduce the rate of dislocation following both primary and revision total hip arthroplasty. Their unique design involves two articulating surfaces which increases construct stability but also leaves them susceptible to a unique complication known as intraprosthetic dislocation (IPD). We report the case of a 33-year-old female who sustained an IPD following closed reduction. Following a missed radiographic diagnosis, the patient experienced pain and mechanical symptoms secondary to her implant failure. Surgical removal of the dislodged liner with component revision was required. This case highlights several crucial steps in the management of patients with dislocated total hip arthroplasties including implant identification and careful review of postreduction radiographs. We also discuss several strategies to properly diagnose, manage, and avoid IPD.
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Affiliation(s)
| | | | - John D Murphy
- Orthopedic Surgery, Largo Medical Center, Largo, USA
| | | | - John N Harker
- Orthopedic Surgery, Largo Medical Center, Largo, USA
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Antoniadis A, Wegrzyn J. Direct Cementation of Dual Mobility Cups Into the Bony Acetabulum in Primary Total Hip Arthroplasty: Clinical and Radiographic Outcomes at a Minimum 5-Year Follow-Up. J Arthroplasty 2022; 38:1120-1125. [PMID: 36566998 DOI: 10.1016/j.arth.2022.12.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/14/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Cemented dual mobility cups (DMCs) are commonly used in combination with acetabular reinforcement devices. Indeed, according to literature, direct cementation of metal-backed acetabular components into the bony acetabulum remains controversial as this technique is potentially associated with increased rates of aseptic loosening. Therefore, this study aimed to evaluate the clinical and radiographic outcomes of DMC cemented into the bony acetabulum in primary total hip arthroplasty (THA). METHODS A total of 49 THA (48 patients, mean age 78 years [range, 51 to 91]) performed with direct cementation of a DMC into the bony acetabulum were prospectively included in our total joint registry and retrospectively reviewed. The clinical outcome was assessed using the Harris hip score (HHS). The radiographic outcome included measurement of component positioning and occurrence and progression of demarcation around the cemented DMC. Complications were reported with a particular attention to cemented fixation failure and aseptic loosening. RESULTS At a 7-year mean follow-up (range, 5 to 8), the pre-to postoperative HHS improved from 47 (range, 30 to 58) to 92 points (range, 80 to 98) (P < .01). Nonprogressive and focalized demarcations were observed in 7 THA (14%). Importantly, no progressive demarcation or DMC aseptic loosening was observed. CONCLUSION Direct cementation of DMC into the bony acetabulum ensured a stable fixation with no progressive demarcation or aseptic loosening at midterm follow-up. Therefore, this technique can be selectively considered in primary THA, especially in elderly or frail patients to avoid potential mechanical failure of press-fit fixation due to altered bone quality or additional morbidity related to the use of acetabular reinforcement devices.
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Affiliation(s)
- Alexander Antoniadis
- Department of Orthopaedic Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Julien Wegrzyn
- Department of Orthopaedic Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Chen M, Takahashi E, Kaneuji A, Tachi Y, Fukui M, Orita Y, Ichiseki T, Zhou Y, Kawahara N. Does the Dual Mobility Cup Reduce Dislocation After Primary Total Hip Arthroplasty in Elderly Patients at High Risk of Dislocation? Orthop Surg 2022; 15:496-501. [PMID: 36479825 PMCID: PMC9891910 DOI: 10.1111/os.13613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 10/27/2022] [Accepted: 11/06/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE The dual mobility cup (DMC) is designed to extend the longevity of the prosthesis by improving stability, enhancing the range of motion, and decreasing impingement without increasing wear. We hypothesized that DMC would reduce the risk of dislocation in elderly patients. This study aimed to investigate the clinical and radiographic outcomes of DMC-total hip arthroplasty (THA) in elderly patients at high risk of dislocation. METHODS From June 2016 to March 2020, 94 patients with a mean age of 77.7 years (97 hips) who underwent a posterolateral approach for DMC-THA in our department were followed up for at least one year. Preoperative and postoperative pelvic tilt angles (PTA) and DMC orientation were prospectively collected for all patients. Intraoperative and postoperative complications were recorded. A parametric test was used for normal distribution, and a non-parametric test was used for non-normal distribution. RESULTS Abduction and anteversion angles of the cup were 42.4 and 18.0° in the supine position immediately postoperative. The average PTA for patients in the supine and standing positions were 26.5 and 34.5°, respectively. When moving from the supine to the standing position, patients experienced a mean posterior pelvic tilt of 9°. No intraoperative acetabular-related complications were recorded. Postoperative complications included early infection in one patient (1.0%) and dislocation in one patient (1.0%). CONCLUSION Our study demonstrates that DMC-THA provides satisfactory short-term outcomes in elderly patients at a high risk of dislocation, regardless of the change in PTA resulting from postural transition.
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Affiliation(s)
- Mingliang Chen
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan,Department of OrthopaedicsAffiliated Renhe Hospital of China Three Gorges UniversityYichangChina
| | - Eiji Takahashi
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - Ayumi Kaneuji
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - Yoshiyuki Tachi
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - Makoto Fukui
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - Yugo Orita
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - Toru Ichiseki
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
| | - You Zhou
- Department of OrthopaedicsAffiliated Renhe Hospital of China Three Gorges UniversityYichangChina
| | - Norio Kawahara
- Department of Orthopaedic SurgeryKanazawa Medical UniversityUchinadaJapan
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Riglet L, Viste A, De Leissègues T, Naaim A, Liebgott H, Dumas R, Fessy MH, Gras LL. Accuracy and precision of the measurement of liner orientation of dual mobility cup total hip arthroplasty using ultrasound imaging. Med Eng Phys 2022; 108:103877. [DOI: 10.1016/j.medengphy.2022.103877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 07/18/2022] [Accepted: 08/22/2022] [Indexed: 10/15/2022]
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Wegrzyn J, Antoniadis A, Sarshari E, Boubat M, Terrier A. Polyethylene wear of dual mobility cups: a comparative analysis based on patient-specific finite element modeling. INTERNATIONAL ORTHOPAEDICS 2022; 46:779-787. [PMID: 35020024 PMCID: PMC8930956 DOI: 10.1007/s00264-022-05305-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/04/2022] [Indexed: 01/29/2023]
Abstract
Purpose Concerns remain about potential increased wear with dual mobility cups related to the multiple articulations involved in this specific design of implant. This finite element analysis study aimed to compare polyethylene (PE) wear between dual mobility cup and conventional acetabular component, and between the use of conventional ultra-high molecular weight PE (UHMWPE) and highly cross-linked PE (XPLE). Methods Patient-specific finite element modeling was developed for 15 patients undergoing primary total hip arthroplasty (THA). Five acetabular components were 3D modeled and compared in THA constructs replicating existing implants: a dual mobility cup with a 22.2-mm-diameter femoral head against UHMWPE or XLPE (DM22PE or DM22XL), a conventional cup with a 22.2-mm-diameter femoral head against UHMWPE (SD22PE) and a conventional cup with a 32-mm-diameter femoral head against UHMWPE or XLPE (SD32PE or SD32XL). Results DM22PE produced 4.6 times and 5.1 times more volumetric wear than SD32XL and DM22XL (p < 0.0001, Cohen’s d = 6.97 and 7.11; respectively). However, even if significant, the differences in volumetric wear between DM22XL and SD32XL as well as between DM22PE and SD22PE or SD32PE were small according to their effect size (p < 0.0001, Cohen’s |d|= 0.48 to 0.65) and could be therefore considered as clinically negligible. Conclusion When using XLPE instead of UHMWPE, dual mobility cup with a 22.2-mm-diameter femoral head produced a similar amount of volumetric wear than conventional acetabular component with a 32-mm-diameter femoral head against XLPE. Therefore, XLPE is advocated in dual mobility cup to improve its wear performance.
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Affiliation(s)
- Julien Wegrzyn
- Department of Orthopedic Surgery, Lausanne University Hospital-Centre Hospitalier Universitaire Vaudois-CHUV, Hôpital Orthopédique, Avenue Pierre-Decker, 4, CH-1011, Lausanne, Switzerland.
| | - Alexander Antoniadis
- Department of Orthopedic Surgery, Lausanne University Hospital-Centre Hospitalier Universitaire Vaudois-CHUV, Hôpital Orthopédique, Avenue Pierre-Decker, 4, CH-1011, Lausanne, Switzerland
| | - Ehsan Sarshari
- Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Matthieu Boubat
- Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Alexandre Terrier
- Department of Orthopedic Surgery, Lausanne University Hospital-Centre Hospitalier Universitaire Vaudois-CHUV, Hôpital Orthopédique, Avenue Pierre-Decker, 4, CH-1011, Lausanne, Switzerland
- Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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Pakarinen O, Lainiala O, Reito A, Neuvonen P, Mäkelä K, Eskelinen A. Implant survival of 662 dual-mobility cups and 727 constrained liners in primary THA: small femoral head size increases the cumulative incidence of revision. Acta Orthop 2021; 92:658-664. [PMID: 34238130 PMCID: PMC8641668 DOI: 10.1080/17453674.2021.1939597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - In total hip arthroplasty (THA), the risk for dislocation can be reduced using either dual-mobility cups (DMCs) or constrained liners (CLs). There are few studies comparing these concepts in primary THA. Therefore, we compared the cumulative incidence of revision in primary THA patients treated with DMC or CL with varying head sizes with conventional THA patients as reference group.Patients and methods - We performed a cohort study based on the Finnish arthroplasty register, comparing DMCs and CLs operated over the period 2000-2017. DMCs were divided into 2 groups based on the implant design: "DMC Trident" group (n = 399) and "DMC Others" group (n = 263). CLs were divided based on the femoral head size: "CL 36 mm" group (n = 425) and "CL < 36 mm" group (n = 302). All conventional primary THAs operated on in 2000-2017 with 28-36 mm femoral head were included as control group ("Conventional THA" group, n = 102,276). Implant survival was calculated by the corresponding cumulative incidence function with revision as the endpoint and death as competing event. Also, the prevalence of different reasons for revision was compared.Results - The 6-year cumulative incidence function estimates for the first revision were 6.9% (95% CI 4.0-9.7) for DMC Trident, 5.0% (CI 1.5-8.5) for DMC Others, 13% (CI 9.3-17) for CL < 36 mm, 6.3% (3.7-8.9) for CL 36 mm, and 4.7% (CI 4.5-4.8) for control group (conventional THA). The prevalence of dislocation revision was high (5.0%, CI 2.9-8.2) in the CL < 36 mm group compared with other groups.Interpretation - The DMC and CL 36 mm groups had promising mid-term survival rates, comparable to those of primary conventional THA group. The revision rate of CLs with < 36 mm head was high, mostly due to high prevalence of dislocation revisions. Therefore, CLs with 36 mm femoral head should be preferred over smaller ones.
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Affiliation(s)
- Oskari Pakarinen
- Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere,Correspondence: Oskari Pakarinen Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere
| | - Olli Lainiala
- Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere,Department of Radiology, Tampere University Hospital, Tampere
| | - Aleksi Reito
- Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere
| | - Perttu Neuvonen
- Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere
| | - Keijo Mäkelä
- Department of Orthopedics and Traumatology, Turku University Hospital, and University of Turku, Turku, Finland
| | - Antti Eskelinen
- Coxa Hospital for Joint Replacement, and Faculty of Medicine and Health Technology, University of Tampere, Tampere
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Dual Mobility in Total Hip Arthroplasty: Biomechanics, Indications and Complications-Current Concepts. Indian J Orthop 2021; 55:1202-1207. [PMID: 34824721 PMCID: PMC8586128 DOI: 10.1007/s43465-021-00471-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/31/2021] [Indexed: 02/04/2023]
Abstract
Dual-mobility (DM) articulations are increasingly utilized to prevent or manage hip instability after total hip arthroplasty (THA). DM cups offer enhanced stability due to the dual articulation resulting in larger jump distance and greater range of motion before impingement. Improvement in design features and biomaterials has contributed to increased interest in dual-mobility articulations due to lower risk of complications compared to their historic rates. The incidence of implant-specific complications like intra-prosthetic dislocation (IPD) and wear has reduced with newer-generation implants. DM THAs are used in primary THA in patients with high risk for dislocation, e.g. neuromuscular disorder, femoral neck fracture, spinopelvic deformity, etc. They offer an attractive alternative option to constrained liner for treatment of hip instability in revision THA. The medium- to short-term results with DM THA have been encouraging in primary and revision THA. However, there are concerns of fretting, corrosion and long-term survivorship with DM THA. Hence, longer-term studies and surveillance are required for the safe use of DM THA in clinical practice.
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Outcomes of dual mobility articulation total hip arthroplasty in ipsilateral residual poliomyelitis. INTERNATIONAL ORTHOPAEDICS 2021; 46:489-496. [PMID: 34580745 DOI: 10.1007/s00264-021-05222-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/14/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Patients with poliomyelitis underwent total hip arthroplasty (THA) are known to be at higher risk of dislocation on account of muscular atrophy. This study aimed to investigate clinical outcomes, radiographic outcomes, complication rates, and survivorship of dual mobility THA in displaced femoral neck fractures of elderly with poliomyelitis. MATERIALS AND METHODS We retrospectively included 17 patients (17 hips) with residual poliomyelitis who underwent THA with dual mobility articulation. Clinical outcomes were assessed with the visual analog scale (VAS) pain score, Oxford hip score, and University of California Los Angeles activity (UCLA) score. Radiographic outcomes were examined by radiographs. Complications and re-operations following THA were recorded. RESULTS The mean follow-up period was 77.05 months. The mean VAS, Oxford hip score, and UCLA score were improved significantly. In all but one patient, no complications were occurred. Re-operation was carried out in one patient due to posterior dislocation. The Kaplan-Meier survivorship with an end point of re-operation for any reason was 94.1%. CONCLUSIONS THA with dual mobility system is proved to be effective in strengthening stability and reducing the risk of dislocation, which is suitable for patients with neuromuscular disease. Hence, in elderly with residual poliomyelitis, dual mobility THA is a valid choice as a treatment for displaced femoral neck fractures.
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Sun PD, Zhang XX, Zhang YW, Wang Z, Wu XY, Wu YC, Yu XL, Gan HR, Liu XD, Ai ZZ, He JY, Dong XP. Stress analysis of the thoracolumbar junction in the process of backward fall: An experimental study and finite element analysis. Exp Ther Med 2021; 22:1117. [PMID: 34504571 PMCID: PMC8383768 DOI: 10.3892/etm.2021.10551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/21/2020] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to evaluate the biomechanical mechanism of injuries of the thoracolumbar junction by the methods of a backward fall simulation experiment and finite element (FE) analysis (FEA). In the backward fall simulation experiment, one volunteer was selected to obtain the contact force data of the sacrococcygeal region during a fall. Utilizing the fall data, the FEA simulation of the backward fall process was given to the trunk FE model to obtain the stress status of local bone structures of the thoracolumbar junction during the fall process. In the fall simulation test, the sacrococcygeal region of the volunteer landed first; the total impact time was 1.14±0.58 sec, and the impact force was up to 4,056±263 N. The stress of thoracic (T)11 was as high as 42 MPa, that of the posterior margin and the junction of T11 was as high as 70.67 MPa, and that of the inferior articular process and the superior articular process was as high as 128 MPa. The average stress of T12 and the anterior margin of lumbar 1 was 25 MPa, and that of the endplate was as high as 21.7 MPa, which was mostly distributed in the back of the endplate and the surrounding cortex. According to the data obtained from the fall experiment as the loading condition of the FE model, the backward fall process can be simulated to improve the accuracy of FEA results. In the process of backward fall, the front edge of the vertebral body and the root of vertebral arch in the thoracolumbar junction are stress concentration areas, which have a greater risk of injury.
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Affiliation(s)
- Pei-Dong Sun
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China.,Department of Human Anatomy, Southern Medical University, Guangdong Key Laboratory of Medical Biomechanics, Guangzhou, Guangdong 510515, P.R. China
| | - Xiao-Xiang Zhang
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yuan-Wei Zhang
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhe Wang
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiao-Yu Wu
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yan-Chao Wu
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xing-Liang Yu
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Hao-Ran Gan
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiang-Dong Liu
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zi-Zheng Ai
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jian-Ying He
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xie-Ping Dong
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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13
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Acuña AJ, Courtney PM, Kurtz SM, Lee GC, Kamath AF. Spine Fusions, Yoga Instructors, and Hip Fractures: The Role of Dual Mobility in Primary Total Hip Arthroplasty. J Arthroplasty 2021; 36:S70-S79. [PMID: 33516631 DOI: 10.1016/j.arth.2020.12.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Despite the increased use of dual mobility (DM) in primary total hip arthroplasty (THA), debate exists regarding the indications for its use. No specific algorithm exists to guide this decision-making process. Therefore, the purpose of this article is to summarize the currently available literature regarding the use of DM in primary THA and provide evidence-based guidelines based on specific patient populations and risk factors for instability. METHODS We reviewed the current literature for studies evaluating risk factors for dislocation in primary THA, as well as the clinical use and results of DM in primary THA. Based on the strength of the literature, we discuss the use of DM in specific patient populations. We provide a decision-making algorithm to determine whether a patient may be indicated for DM in primary THA. RESULTS Surgeons should consider preoperative patient demographics, risk factors for instability (eg, significant hip-spine issues), type of procedure to be performed (eg, conversion arthroplasty), and indications for surgery (eg, THA for femoral neck fracture). Based on this algorithmic assessment, DM may be warranted in the primary THA setting if a patient's combined risk reaches an established threshold based on the literature. CONCLUSION This evidence-based algorithm may help guide current practice in the use of DM in primary THA. We advocate the continued judicious use of DM in hip arthroplasty. Longer term studies are needed in order to evaluate the durability of DM, as well as any complications related to the DM articulation.
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Affiliation(s)
- Alexander J Acuña
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - P Maxwell Courtney
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Steven M Kurtz
- Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania; Biomedical Engineering Practice, Exponent Inc, Menlo Park, California
| | - Gwo-Chin Lee
- Department of Orthopaedic Surgery, University of Pennsylvania, Penn Musculoskeletal Center, Philadelphia, Pennsylvania
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
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Klemt C, Bounajem G, Tirumala V, Xiong L, Padmanabha A, Kwon YM. Three-dimensional kinematic analysis of dislocation mechanism in dual mobility total hip arthroplasty constructs. J Orthop Res 2021; 39:1423-1432. [PMID: 32915465 DOI: 10.1002/jor.24855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/25/2020] [Accepted: 09/08/2020] [Indexed: 02/04/2023]
Abstract
Dual mobility (DM) total hip arthroplasty (THA) is associated with reduced dislocation rates; however, the kinematic mechanism of dislocation in DM THA constructs is still not well understood. This study hypothesizes that the difference in kinematics between DM THA and conventional THA designs contributes to reduced dislocation rates of DM THA. In addition, this study aims to quantify and compare those kinematic parameters between DM THA and conventional THA using a validated dual fluoroscopy imaging system (DFIS) and finite element (FE) modelling. Fresh frozen cadavers were measured to compare the impingement-free range of motion and provocative subluxation kinematics among three THA constructs: (1) DM, (2) constrained liner (CS), and (3) 36 mm head diameter neutral liner (NL). The DFIS was used to measure the in vitro kinematics of the hip. Subject-specific FE models were developed to assess the horizontal dislocation distance and resistive torque at dislocation. The DM construct head exhibited increased provocative anterior and posterior subluxation range of motion before dislocation when compared to CS constructs (p = .05; p = .03), as well as NL constructs (p = .05). The DM THA showed a significantly larger posterior horizontal dislocation distance, as well as smaller resistive torque at dislocation, when compared to NL (p = .05; p = .03) and CS constructs (p = .04; p = .01). Our findings demonstrate there was increased provocative subluxation range of motion as well as normalized jump distance for the DM constructs compared to the NL and CS constructs, suggesting the DM THA may provide increased stability hip during at-risk functional hip positions.
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Affiliation(s)
- Christian Klemt
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Georges Bounajem
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Venkatsaiakhil Tirumala
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Liang Xiong
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Anand Padmanabha
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Young-Min Kwon
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Abstract
INTRODUCTION Dislocation after total hip arthroplasty (THA) is the most common cause of revision hip surgery in the United States, ahead of aseptic loosening and infection, and is responsible for considerable economic cost related to frequent readmission and/or revision surgery. The aim of this article is to identify the clinical and radiological factors related to the unstable total hip replacement. METHODS We performed a literature search to assess current strategies to define clinical and radiological characteristics of dislocation after primary THA using the PubMed platform. The characteristics related to THA instability were divided into patient related factors, implant related factors and surgeon experience. RESULTS Patient-related factors for instability identified are: age; inflammatory joint disease; prior hip surgery; preoperative diagnosis; comorbidity; ASA score; presence of spino-pelvic abnormality; and neurological disability. Gender, simultaneous bilateral THA and restrictive postoperative precautions do not influence rate of THA dislocation. Implant related factors identified are: surgical approach; component malposition; femoral head size; and the use of dual-mobility or constrained solution. Surgeon experience also reduces the rate of dislocation. DISCUSSION Dislocation is a major complication of THAs, and causes include patient-derived factors, surgical factors, or both. It is imperative to determine the cause of the instability via a complete patient and radiographic evaluation and to adjust the reconstruction strategy accordingly.
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Affiliation(s)
- Loris Perticarini
- Orthopaedic and Traumatology, Fondazione Poliambulanza, Brescia, Italy
| | - Stefano M P Rossi
- Orthopaedic and Traumatology, Fondazione Poliambulanza, Brescia, Italy
| | - Francesco Benazzo
- Orthopaedic and Traumatology, Fondazione Poliambulanza, Brescia, Italy
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16
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Onochi Y, Fukui K, Kaneuji A, Ichiseki T, Wang X, Kawahara N. Dual mobility acetabular construct with freedom constrained liner for treatment of recurrent dislocations after total hip arthroplasty: A case report and literature review. Int J Surg Case Rep 2020; 75:94-99. [PMID: 32932039 PMCID: PMC7493044 DOI: 10.1016/j.ijscr.2020.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 11/18/2022] Open
Abstract
Dual-mobility bearings improve stability in total hip arthroplasty (THA) but may fail to prevent postoperative dislocation. Dry revision with a compatible constrained liner system can provide an effective salvage option for instability after THA. The unique G7 constrained liner system offers good short-term stability and range of motion.
Introduction Recurrent dislocation after total hip arthroplasty (THA) using the dual mobility cup system can present challenges, while dual-mobility THA bearings can improve stability in both primary and revision total hip arthroplasties. Presentation of case A 72-year-old woman with a history of schizophrenia underwent a left primary THA using the G7 dual mobility system. Two postoperative posterior dislocations occurred within 2 months post-surgery. The patient underwent revision surgery in which the metal liner and dual mobility head were exchanged using the Freedom constrained liner system without revision of the cup and stem. As of this writing, 28 months after the revision surgery, no further dislocations have occurred. The implants are stable, and the patient has good range of motion. Discussion Dual-mobility bearings are utilized to improve stability in both primary and revision total hip arthroplasties, but even if the dual mobility system is chosen, it sometimes fails to prevent postoperative dislocation. Although a relatively high failure rate has been reported in THA using the constrained liner system, this patient’s clinical course suggests that the G7 Freedom constrained liner system can be an efficacious option for some patients with unstable hip joints who undergo THA using the dual mobility system. Conclusion A modern constrained liner system such as the G7 Freedom liner may provide an improved salvage solution for joint instability in dual mobility THA.
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Affiliation(s)
- Yuuki Onochi
- Department of Orthopedic Surgery, Kanazawa Medical University, Japan
| | - Kiyokazu Fukui
- Department of Orthopedic Surgery, Kanazawa Medical University, Japan.
| | - Ayumi Kaneuji
- Department of Orthopedic Surgery, Kanazawa Medical University, Japan
| | - Toru Ichiseki
- Department of Orthopedic Surgery, Kanazawa Medical University, Japan
| | - Xipeng Wang
- Department of Orthopedic Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Norio Kawahara
- Department of Orthopedic Surgery, Kanazawa Medical University, Japan
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17
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Wegrzyn J, Saugy CA, Guyen O, Antoniadis A. Cementation of a Dual Mobility Cup Into an Existing Well-Fixed Metal Shell: A Reliable Option to Manage Wear-Related Recurrent Dislocation in Patients With High Surgical Risk. J Arthroplasty 2020; 35:2561-2566. [PMID: 32473768 DOI: 10.1016/j.arth.2020.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 05/01/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND During revision total hip arthroplasty (THA), the "double-socket" technique has been proposed as a straightforward solution in order to reduce the overall perioperative morbidity in patients with high surgical risk. However, the option of cementing a dual mobility cup into an existing well-fixed metal shell was sparsely reported. Therefore, this study aimed to evaluate the outcome of a "double-socket" technique performed with a cemented dual mobility cup in revision THA for late instability. METHODS Twenty-eight revision THAs (28 patients) were performed for wear-related recurrent dislocation using a "double-socket" technique with a cemented dual mobility cup and retrospectively reviewed. The age at revision averaged 82 years (range 74-93). According to the American Society of Anesthesiologists (ASA) physical status classification, 12 patients (43%) were ASA II and 16 patients (57%) were ASA III before revision. RESULTS At a mean follow-up of 3.5 years (range 2-5), the mean preoperative to postoperative functional outcome improved significantly (P < .01). The mean operative time was 107 minutes (range 75-140). The mean intraoperative bleeding was 200 mL (range 110-420). No postoperative complication, reoperation, or re-revision was reported. Importantly, no dislocation, dissociation of the cemented dual mobility cup construct, or aseptic loosening of the retained metal shell was observed. CONCLUSION The "double-socket" technique with a dual mobility cup cemented into an existing well-fixed and well-positioned metal shell ensured a straightforward and blood-sparing revision technique that was efficient to restore stability and provide a secure acetabular construct in frail patients with high surgical risk and/or older than their natural life expectancy.
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Affiliation(s)
- Julien Wegrzyn
- Department of Orthopedic Surgery, Lausanne University Hospital, CHUV, Lausanne, Switzerland
| | - Claire-Anne Saugy
- Department of Orthopedic Surgery, Lausanne University Hospital, CHUV, Lausanne, Switzerland
| | - Olivier Guyen
- Department of Orthopedic Surgery, Lausanne University Hospital, CHUV, Lausanne, Switzerland
| | - Alexander Antoniadis
- Department of Orthopedic Surgery, Lausanne University Hospital, CHUV, Lausanne, Switzerland
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18
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Postero-posterolateral approach in total hip arthroplasty. INTERNATIONAL ORTHOPAEDICS 2020; 44:2577-2585. [PMID: 32676781 PMCID: PMC7679294 DOI: 10.1007/s00264-020-04679-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/22/2020] [Indexed: 01/14/2023]
Abstract
Introduction Evolving surgical techniques in total hip arthroplasty (THA) have sought to make the surgical procedures safer. This requires having highly reproducible incision landmarks and simplifying the procedures. The postero-posterolateral approach, a very posterior incision in the hip, meets those requirements. However, this has not helped to reduce the post-operative dislocation rate. The aim of this study was to assess the relevance of combining the postero-posterolateral approach and next-generation dual mobility cups (DMC) in terms of dislocation risk. Materials and methods One hundred and fifty-eight THA were performed consecutively using the postero-posterolateral approach on 150 patients, by a single surgeon, over a 49-month period (November 2010 to December 2014). All acetabular implants were impacted. Results Average length of the incision was 7 cm (6 to 9 cm). Mean duration of the surgical procedure was 75 minutes (40 to 100). Mean blood loss was estimated at 210 cc (25 to 410 cc). All patients could walk with assistance the day before transferring to a rehabilitation centre. There was one posterior dislocation (0.63%), without recurrence. Conclusion The straightforwardness and reproducibility of the anatomical landmarks used for the postero-posterolateral approach, added to the stability of the dual mobility cup, result in a safe combination in the therapeutic THA arsenal.
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19
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You D, Sepehri A, Kooner S, Krzyzaniak H, Johal H, Duffy P, Schneider P, Powell J. Outcomes of total hip arthroplasty using dual mobility components in patients with a femoral neck fracture. Bone Joint J 2020; 102-B:811-821. [PMID: 32600134 DOI: 10.1302/0301-620x.102b7.bjj-2019-1486.r1] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIMS Dislocation is the most common indication for further surgery following total hip arthroplasty (THA) when undertaken in patients with a femoral neck fracture. This study aimed to assess the complication rates of THA with dual mobility components (THA-DMC) following a femoral neck fracture and to compare outcomes between THA-DMC, conventional THA, and hemiarthroplasty (HA). METHODS We performed a systematic review of all English language articles on THA-DMC published between 2010 and 2019 in the MEDLINE, EMBASE, and Cochrane databases. After the application of rigorous inclusion and exclusion criteria, 23 studies dealing with patients who underwent treatment for a femoral neck fracture using THA-DMC were analyzed for the rate of dislocation. Secondary outcomes included reoperation, periprosthetic fracture, infection, mortality, and functional outcome. The review included 7,189 patients with a mean age of 77.8 years (66.4 to 87.6) and a mean follow-up of 30.9 months (9.0 to 68.0). RESULTS THA-DMC was associated with a significantly lower dislocation rate compared with both THA (OR 0.26; 95% CI 0.08 to 0.79) and HA (odds ratio (OR) 0.27; 95% confidence interval (CI) 0.15 to 0.50). The rate of large articulations and of intraprosthetic dislocation was 1.5% (n = 105) and 0.04% (n = 3) respectively. CONCLUSION THA-DMC when used in patients with a femoral neck fracture is associated with a lower dislocation rate compared with conventional arthroplasty options. There was no increase in the rates of other complication when THA-DMC was used. Future cost analysis and prospective, comparative studies are required to assess the potential benefit of using THA-DMC in these patients. Cite this article: Bone Joint J 2020;102-B(7):811-821.
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Affiliation(s)
- Daniel You
- Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Aresh Sepehri
- Department of Orthopaedics, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Sahil Kooner
- Division of Orthopaedic Surgery, University of Toronto, Toronto, Canada
| | - Halli Krzyzaniak
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Herman Johal
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Canada
| | - Paul Duffy
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary, Canada
| | - Prism Schneider
- Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - James Powell
- Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
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20
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Chouteau J, Rollier JC, Bonnin MP, Saffarini M, Nover L, Chatelet JC, Jacquot L. Absence of instabilities and intra-prosthetic dislocations at 7 to 11 years following THA using a fourth-generation cementless dual mobility acetabular cup. J Exp Orthop 2020; 7:51. [PMID: 32661747 PMCID: PMC7359208 DOI: 10.1186/s40634-020-00265-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/16/2020] [Indexed: 12/23/2022] Open
Abstract
PURPOSE Dual-mobility (DM) cups are increasingly used in total hip arthroplasty (THA) but there lacks literature on their long-term results. We aimed to investigate outcomes of a fourth-generation cementless DM acetabular cup at 7-11 years. METHODS We retrospectively evaluated 240 consecutive hips that received cementless THA using the same dual mobility cup (Novae Sunfit TH) and femoral stem (Corail). Patients were recalled at ≥7 years to collect Oxford hip scores (OHS), Harris hip scores (HHS), and inspect for radiolucent lines and granulomas. Multi-variable analyses were performed to determine whether HHS or OHS were associated with pre- or intra-operative variables. RESULTS At 8.4 ± 0.8 years (range, 7-11), 6 hips were revised (2.5%), 54 deceased (22.5%), and 14 could not be reached (5.8%). Four revisions (2 cup+stem, 2 liners only) were due to sepsis (1.7%), one (cup and stem) for trauma (0.4%), and one (stem) due to aseptic loosening (0.4%). For the remaining 166 hips, HHS was 83.6 ± 13.2 and OHS was 20.3 ± 6.7. Multi-variable analysis confirmed that HHS (β = - 0.38; p = 0.039) and OHS (β = 0.36; p < 0.001) worsened with age, and that OHS was worse for Charnley C patients (β = 3.17; p = 0.009). Neither granulomas nor radiolucenies were observed around any cups, but radiolucenies were seen around 25 stems (20.3%). CONCLUSIONS This fourth-generation DM cup demonstrated satisfactory outcomes at 7-11 years, with no instabilities or cup revisions due to aseptic loosening. Better OHS was observed for younger patients and those presenting higher Charnley grade. LEVEL OF EVIDENCE Level IV, retrospective case study.
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Affiliation(s)
- Julien Chouteau
- Artro Group Institute, Lyon, France.,Clinique d'Argonay, Ramsay Santé, Annecy, France
| | - Jean-Charles Rollier
- Artro Group Institute, Lyon, France.,Clinique d'Argonay, Ramsay Santé, Annecy, France
| | - Michel P Bonnin
- Artro Group Institute, Lyon, France.,Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, Ramsay Santé, Lyon, France
| | | | | | - Jean-Christophe Chatelet
- Artro Group Institute, Lyon, France.,Centre de Chirurgie Orthopédique du Beaujolais, Ramsay Santé, Arnas, France
| | - Laurent Jacquot
- Artro Group Institute, Lyon, France.,Clinique d'Argonay, Ramsay Santé, Annecy, France
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Alastruey-López D, Ezquerra L, Seral B, Pérez MA. Using artificial neural networks to predict impingement and dislocation in total hip arthroplasty. Comput Methods Biomech Biomed Engin 2020; 23:649-657. [PMID: 32364804 DOI: 10.1080/10255842.2020.1757661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Dislocation after total hip arthroplasty (THA) remains a major issue and an important post-surgical complication. Impingement and subsequent dislocation are influenced by the design (head size) and position (anteversion and abduction angles) of the acetabulum and different movements of the patient, with external extension and internal flexion the most critical movements. The aim of this study is to develop a computational tool based on a three-dimensional (3D) parametric finite element (FE) model and an artificial neural network (ANN) to assist clinicians in identifying the optimal prosthesis design and position of the acetabular cup to reduce the probability of impingement and dislocation. A 3D parametric model of a THA was used. The model parameters were the femoral head size and the acetabulum abduction and anteversion angles. Simulations run with this parametric model were used to train an ANN, which predicts the range of movement (ROM) before impingement and dislocation. This study recreates different configurations and obtains absolute errors lower than 5.5° between the ROM obtained from the FE simulations and the ANN predictions. The ROM is also predicted for patients who had already suffered dislocation after THA, and the computational predictions confirm the patient's dislocations. Summarising, the combination of a 3D parametric FE model of a THA and an ANN is a useful computational tool to predict the ROM allowed for different designs of prosthesis heads.
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Affiliation(s)
- D Alastruey-López
- M2BE-Multiscale in Mechanical and Biological Engineering, Instituto de Investigación en Ingeniería de Aragón (I3A), Aragón Institute of Health Science (IACS), Universidad de Zaragoza, Zaragoza, España
| | | | - B Seral
- M2BE-Multiscale in Mechanical and Biological Engineering, Instituto de Investigación en Ingeniería de Aragón (I3A), Aragón Institute of Health Science (IACS), Universidad de Zaragoza, Zaragoza, España.,University Clinic Hospital "Lozano Blesa", Aragón Institute of Health Science (IACS), University of Zaragoza, Zaragoza, Spain
| | - M A Pérez
- M2BE-Multiscale in Mechanical and Biological Engineering, Instituto de Investigación en Ingeniería de Aragón (I3A), Aragón Institute of Health Science (IACS), Universidad de Zaragoza, Zaragoza, España
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22
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Abe T, Kaku N, Tabata T, Tagomori H, Tsumura H. Long-term clinical results of bipolar hemiarthroplasty for osteoarthritis and rheumatoid arthritis of the hip: A retrospective study. J Orthop 2020; 17:120-123. [DOI: 10.1016/j.jor.2019.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 08/11/2019] [Indexed: 11/29/2022] Open
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23
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Guyen O. Hemiarthroplasty or total hip arthroplasty in recent femoral neck fractures? Orthop Traumatol Surg Res 2019; 105:S95-S101. [PMID: 30449680 DOI: 10.1016/j.otsr.2018.04.034] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/26/2018] [Accepted: 04/28/2018] [Indexed: 02/02/2023]
Abstract
The optimal treatment of recent femoral neck fractures remains debated. The available options are internal fixation, hemiarthroplasty (HA) and total hip arthroplasty (THA). There is a consensus in favour of internal fixation in younger patients. In elderly individuals who are institutionalised and have limited physical activity, HA is usually performed when the joint line is intact. Whether HA or THA deserves preference in patients aged 60 years or over is unclear. In addition, there are two types of HA, unipolar and bipolar, and two types of THA, conventional and dual-mobility. Both HA types provide similar outcomes with satisfactory stability but a risk of acetabular wear that may eventually require conversion to THA. THA is associated with better functional outcomes and a lower risk of revision surgery in self-sufficient, physically active patients. Instability is the leading complication of conventional THA and occurs with a higher incidence compared to HA. With all implant types, preoperative factors associated with mortality and complications include walking ability and level of self-sufficiency, nutritional status, and haematocrit. An evaluation of these factors before surgery is of paramount importance. Factors amenable to treatment should be corrected by working jointly with geriatricians to develop a preoperative management strategy. In patients who are self-sufficient, physically active, and free of risk factors, THA remains the option of choice, as it provides better functional outcomes. A dual-mobility implant deserves preference to prevent instability. HA is indicated in patients whose self-sufficiency and physical activity are limited. A unipolar implant should be used, as no evidence exists that bipolar implants provide additional benefits. When performing HA, the posterior approach should be avoided given the risk of instability. For THA, in contrast, the posterior approach is a reliable option in the hands of an experienced surgeon using a dual-mobility cup. Cement fixation of the stem is recommended to minimise the risk of peri-prosthetic fracture.
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Affiliation(s)
- Olivier Guyen
- Service d'orthopédie-traumatologie, hôpital Orthopédique - CHUV, avenue Pierre-Decker 4, 1011 Lausanne, Switzerland.
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24
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Affiliation(s)
- S Horriat
- The Princess Grace Hospital, London, UK
| | - F S Haddad
- The Bone & Joint Journal, Professor of Orthopaedic Surgery, University College London Hospitals, The Princess Grace Hospital, and The NIHR Biomedical Research Centre at UCLH, London, UK
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25
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Kasparek MF, Renner L, Faschingbauer M, Waldstein W, Rueckl K, Boettner F. Salvage of a monoblock metal-on-metal cup using a dual mobility liner: a two-year MRI follow-up study. INTERNATIONAL ORTHOPAEDICS 2017; 42:1035-1041. [PMID: 28929204 DOI: 10.1007/s00264-017-3641-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 09/05/2017] [Indexed: 01/18/2023]
Abstract
PURPOSE Revision of failed modular metal-on-metal total hip replacement (MoM-THA) can be technically difficult. A dual mobility liner can help to salvage a well-fixed acetabular component. The present paper reports the clinical and radiographic outcome of revision of failed Birmingham modular MoM-THA using a dual mobility liner. METHODS The present study reports on ten patients (3 female and 7 male) with 11 revision THAs. Patients underwent revision an average of 51 months (range 40-73 months) after index procedure. Mean follow-up after the revision was 31 months (range 24-37 months) and all patients underwent an MRI with metal artifact reduction software (MARS) at least two years after revision to assess for local polyethylene wear and osteolysis. RESULTS The Harris Hip score improved from 92.2 (range 63.0-100.0) to 100.0 (p = 0.072). One patient had a one-time dislocation within seven days of surgery. No patient required additional surgeries. Radiographs showed no signs of component loosening and osteolysis and MRI imaging revealed no evidence of polyethylene wear or osteolysis. CONCLUSION A dual mobility liner in an existing Birmingham cup can provide excellent clinical and radiological short-term results without MRI evidence of increased polyethylene wear. Post-operative hip precautions should be enforced.
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Affiliation(s)
- Maximilian F Kasparek
- Adult Reconstruction & Joint Replacement Division, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
- Department of Orthopedics, Vienna General Hospital, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Lisa Renner
- Orthopaedic Department, Center for Musculoskeletal Surgery, Charité, Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Martin Faschingbauer
- Department of Orthopedic Surgery, University Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany
| | - Wenzel Waldstein
- Department of Orthopedics, Vienna General Hospital, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Kilian Rueckl
- Adult Reconstruction & Joint Replacement Division, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Friedrich Boettner
- Adult Reconstruction & Joint Replacement Division, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
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Caton JH, Ferreira A. Dual-mobility cup: a new French revolution. INTERNATIONAL ORTHOPAEDICS 2017; 41:433-437. [PMID: 28197702 DOI: 10.1007/s00264-017-3420-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 01/26/2017] [Indexed: 01/16/2023]
Affiliation(s)
| | - André Ferreira
- Clinique du Parc, 155 Ter Boulevard de Stalingrad, 69006, Lyon, France.
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