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Kristóf J, Gupta D, Szabó L, Bucsi L, Zahár Á. Outcomes of Exeter cemented total hip arthroplasty in a county hospital: survivorship of eight hundred and ninety four hips with a minimum ten-year follow up. Int Orthop 2024; 48:729-735. [PMID: 37914902 DOI: 10.1007/s00264-023-06026-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE A total of 894 hips were evaluated to describe the survivorship of Exeter cemented femoral stems and report the outcomes and complications of our 'Exeter- era', and there is no study from Central or Eastern Europe demonstrating similar results. METHODS Between January 2000 and December 2009, a total of 894 hips were included who underwent Exeter universal and V40 femoral stems with a mean follow up of 13 years. Cemented Exeter low profile polyethylene cups were used in 889 patients (99.4%) cups. Harris hip score (HHS) was used and statistical outcome measures were calculated with revision as an endpoint for aseptic loosening of the stem, aseptic loosening of any component, all-cause revision of the stem, and all-cause revision of the hip. RESULTS A total of 103 patients died and 129 (14.4%) operated hips were lost to follow-up before ten years. Out of the 662, ten stems (1.5%) were revised for aseptic loosening. Aseptic loosening of any component was the reason for revision in 43 cases (6.5%), consisting of 40 cup revisions and ten stem exchanges. Periprosthetic fracture occurred in 17 cases (1.9%) Periprosthetic joint infection occurred in 18 cases (2.01%). Three cups were exchanged for recurrent dislocation, and two stems had broken. CONCLUSION Exeter hip system has provided reproducible results across different centres worldwide, as it did in our series. Thorough surgical and cementing technique is of utmost importance for achieving these results. The cup is the weak point of the system and use of a hybrid system is worth considering.
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Affiliation(s)
- Jánvári Kristóf
- Department of Orthopaedics, Saint George University Teaching and County Hospital Centre for Musculoskeletal Surgery, Székesfehérvár, Hungary
| | - Devanshu Gupta
- Department of Orthopaedics, Saint George University Teaching and County Hospital Centre for Musculoskeletal Surgery, Székesfehérvár, Hungary.
| | - László Szabó
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, 1085, Budapest, Hungary
| | - László Bucsi
- Department of Orthopaedics, Saint George University Teaching and County Hospital Centre for Musculoskeletal Surgery, Székesfehérvár, Hungary
| | - Ákos Zahár
- Department of Orthopaedics, Saint George University Teaching and County Hospital Centre for Musculoskeletal Surgery, Székesfehérvár, Hungary
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Baryeh KW, Bennett K, Sochart DH. The ethylene oxide sterilised Opera acetabular component demonstrates high rates of loosening and revision compared to the gamma irradiated Ogee cup: a cohort study demonstrating potential shortcomings of revision-based registry data. Hip Int 2023; 33:87-93. [PMID: 34030496 DOI: 10.1177/11207000211018972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
AIMS To evaluate the long-term clinical outcomes of 2 cemented ultra-high molecular weight polyethylene (UHMWPE) acetabular components, with the main difference between the 2 components being their method of sterilisation. PATIENTS AND METHODS Data was collected prospectively on 352 consecutive total hip replacements, performed between March 2000 and July 2004, at a single centre. A posterior approach was used with a cemented C-Stem femoral component (DePuy, Warsaw, IN, USA) in all cases and either the Ogee (DePuy, Warsaw, IN, USA) or the Opera (Smith & Nephew, Memphis, TN, USA) acetabular implant. Patients were reviewed clinically and radiologically with a median 12-year follow-up (6-16 years). RESULTS The risk of experiencing loosening was 90% lower for the Gamma irradiated implant (GII) group compared to the ethylene oxide sterilised implant (EOSI) group, which was statistically significant (p = 0.003), (HR 0.10; 95% CI, 0.02-0.45). The incidence of cup revision was also lower in the GII group (p = 0.029), but after adjustment for age, gender and BMI was not statistically significant (p = 0.104). 15-year survivorship with failure/loosening as an endpoint was 70.1% for the EOS implant and 92.9% for the GII (OR 4.99; CI 95%, 1.75-14.2) and with revision as an endpoint was 81.4% for the EOSI and 92.9% for the GII (OR 2.60; CI 95%, 0.87-7.75). CONCLUSIONS We report increased rates of loosening, revision and failure for the EOSI compared to the GII at long-term follow-up. This may have been attributable to the different sterilisation methods used.
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Affiliation(s)
- Kwaku W Baryeh
- The Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom General Hospital, Epsom, UK
| | - Kate Bennett
- Surrey Clinical Trials Unit and Clinical Research Facility, University of Surrey, Guildford, UK
| | - David H Sochart
- The Academic Surgical Unit, South West London Elective Orthopaedic Centre, Epsom General Hospital, Epsom, UK.,The Department of Orthopaedic and Trauma Surgery, North Manchester General Hospital, Manchester, UK
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Mancino F, Tornberg H, Jones CW, Bucher TA, Malahias MA. The exeter cemented stem provides outstanding long-term fixation and bone load at 15 years follow-up: A systematic review and meta-analysis. J Orthop Surg (Hong Kong) 2023; 31:10225536231153232. [PMID: 36655735 DOI: 10.1177/10225536231153232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
PURPOSE Since its introduction in 1988, the double-tapered polished Exeter cemented stem has been widely adopted in primary total hip arthroplasty (THA). Despite the results coming from the arthroplasty registries have proven great survivorship, the aim of this study was to dig deeper and describe the modes of failure of the Exeter stem at 15 years follow-up while reporting the clinical and radiographic outcomes. METHODS A search of PubMed, MEDLINE, and Embase was performed using the Preferred Reporting Items for Systematic Review and Meta-Analyses since inception of database to January 2022. A meta-analysis was performed on stem's failure rates and clinical outcomes using random effects models. Publication bias was assessed with funnel plots. RESULTS Overall, ten studies met the inclusion criteria with 2167 hips at mean 14.8 ± 4.1 years follow-up. The meta-effect estimate for revision rate for stem-related reasons was 3.8% (CI 95% 2.1-5.6, p < 0.01). The meta-effect for revision rate for stem aseptic loosening (AL) was 0.22% (CI 95% 0-0.4, p = 0.048) and for periprosthetic fracture was 0.6% (CI95% 0.3-0.9, p < 0.001). The meta effect estimate for Oxford Hip Score (OHS) at final follow-up was 32.4 (moderate; CI 95% 23.2-41.6, p <0.001) with and heterogeneity among the studies of I2 0%. Radiolucent lines were reported in 5.5% of cases, with 1.0% of cases (21 hips) reported to be progressive. CONCLUSION Current evidence suggests that the Exeter cemented stem not only has proven long-term outstanding reliability with a revision rate of 3.8%, but also incredibly low revision rates for AL (0.22%) and periprosthetic fracture (0.6%). It is suitable for a variety of indications, and the consistent radiological appearances indicate durable fixation and load transmission while being associated with a remarkably low stem-related complication rate.
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Affiliation(s)
- Fabio Mancino
- Department of Orthopaedics, The Orthopaedic Research Foundation of Western Australia (ORFWA), 418838Fiona Stanley Hospital, Perth, WA, Australia
| | - Haley Tornberg
- 363994Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Christopher W Jones
- Department of Orthopaedics, The Orthopaedic Research Foundation of Western Australia (ORFWA), 418838Fiona Stanley Hospital, Perth, WA, Australia.,Curtin University, Perth, WA, Australia
| | - Thomas A Bucher
- Department of Orthopaedics, The Orthopaedic Research Foundation of Western Australia (ORFWA), 418838Fiona Stanley Hospital, Perth, WA, Australia
| | - Michael-Alexander Malahias
- 3rd Orthopaedic Department, Therapis General Hospital, Athens, Greece.,Stavros Niarchos Foundation Complex Joint Reconstruction Center, Adult Reconstruction and Joint Replacement Division, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
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Hammouche SA, Phillips J, Massoumi A, Scammell BE, Moran CG. Implant and patient survival rates using Exeter Trauma Stem hemiarthroplasty in fracture neck of femur patients: The largest study to date. Injury 2022; 53:2199-2206. [PMID: 35393097 DOI: 10.1016/j.injury.2022.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/21/2022] [Accepted: 03/06/2022] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Exeter Trauma Stems (ETS) femoral hemiarthroplasties are based on Exeter THR stems with a few design changes. Little has been published on ETS survival rates to justify their high cost compared to other cheaper implants. This is the largest prospective study to assess ETS implant failure-free survival rates in fracture neck of femur patients (NOF). This non-developing-centre study examined whether these design differences have altered implant survival (compared with Exeter THR's published survival data). METHODS Data were prospectively collected by independent audit officers. Dislocation, periprosthetic fracture, re-admission with severe hip pain, deep infection and revision surgery were considered events of interest in implant failure-free survival. RESULTS This study assessed 1,123 ETS stems (36 patients received bilateral ETS) in NOF patients. The mean patient age at the time of operation was 83 years (range; 49 - 102 years). The mean observation period was 2.5 years (range; 0 days - 8 years). Only 29 implants failed. All failure events were reported within the first year. Stem failure-free survival was 97.2% at eight years (CI 95.9% - 98%). Dislocation occurred in 10 patients (1%), periprosthetic femoral fracture in 4 (0.4%), and deep infection in 11 patients (1.2%). Patient survival rates were 75% and 48% at one and five years respectively. CONCLUSION ETS has high implant failure-free survival rates when used in hip fractures. ETS design changes have not altered ETS survival when used in hip fractures compared with the published literature of Exeter THR stem when used as a treatment for OA. Exeter Trauma Stems in NOF patients might last these elderly patients their entire short lifetime.
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Affiliation(s)
- Salah A Hammouche
- The Orthopaedic Academic Unit, Queen's Medical Centre, Nottingham University Hospitals, Nottingham NG7 2UH, United Kingdom.
| | - Jonathan Phillips
- The Orthopaedic Academic Unit, Queen's Medical Centre, Nottingham University Hospitals, Nottingham NG7 2UH, United Kingdom
| | - Abaris Massoumi
- The Orthopaedic Academic Unit, Queen's Medical Centre, Nottingham University Hospitals, Nottingham NG7 2UH, United Kingdom
| | - Brigitte E Scammell
- The Orthopaedic Academic Unit, Queen's Medical Centre, Nottingham University Hospitals, Nottingham NG7 2UH, United Kingdom
| | - Chris G Moran
- The Orthopaedic Academic Unit, Queen's Medical Centre, Nottingham University Hospitals, Nottingham NG7 2UH, United Kingdom
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5
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Ohashi H, Iida S, Minato I. Minimum ten-year outcome of a triple-tapered femoral stem implanted with line-to-line cementing technique. BMC Musculoskelet Disord 2021; 22:601. [PMID: 34193115 PMCID: PMC8246659 DOI: 10.1186/s12891-021-04484-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 06/14/2021] [Indexed: 11/25/2022] Open
Abstract
Background A triple-tapered polished femoral stem was implanted with line-to-line cementing technique. The purpose of this study was to determine the survivorship, loosening rate, stem subsidence, radiologic changes and clinical outcomes in the minimum 10-year follow-up. Methods This was a retrospective study done in three institutes. Finally, 118 hips in 97 patients could be followed-up at the mean follow-up period of 126.3 months. The survivorship, radiological and clinical outcomes were investigated. Results Radiologically, 107 hips (90.7%) were categorized to Barrack cementing grade A, and 108 stems (91.5%) were inserted in neutral position. All hips were not loose and were not revised due to any reason. Survival with revision for any reason as the endpoint was 100% after 10 years. At the last follow-up, the mean subsidence was 0.43 mm, and the subsidence was less than 1 mm in 110 hips (93.2%). JOA hip score improved from 42.7 ± 8.9 points preoperatively to 92.8 ± 6.8 points at the last follow-up. No patient complained thigh pain. Conclusions Line-to-line cementing technique with use of a triple-tapered polished stem was effective to achieve good cementation quality and centralization of the stem. The subsidence was small, and the minimum 10-year results were excellent without any failures related to the stem. Trial registration Retrospectively registered.
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Affiliation(s)
- Hirotsugu Ohashi
- Department of Orthopaedic Surgery, Osaka Saiseikai Nakatsu Hospital, 2-10-39 Shibata, Kita-ku, Osaka, 530-0012, Japan.
| | - Satoshi Iida
- Department of Orthopaedic Surgery, Matsudo City General Hospital, 933-1 Sendabori, Matsudo, Chiba, 270-2296, Japan
| | - Izumi Minato
- Department of Orthopaedic Surgery, Niigata Rinko Hospital, 1-114-3 Momoyama-cho, higashi-ku, Niigata, 950-8725, Japan
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6
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Abstract
The literature was reviewed to establish the levels of stem subsidence for both double and triple-tapered implants in order to determine whether there were any differences in subsidence levels with regard to the methods of measurement, the magnitude and rate of subsidence and clinical outcomes. All studies reporting subsidence of polished taper-slip stems were identified. Patient demographics, implant design, radiological findings, details of surgical technique, methods of measurement and levels of subsidence were collected to investigate which factors were related to increased subsidence. Following application of inclusion and exclusion criteria, 28 papers of relevance were identified. The studies initially recruited 3090 hips with 2099 being available for radiological analysis at final follow-up. Patient age averaged 68 years (42–70), 60.4% were female and the average body mass index (BMI) was 27.4 kg/m2 (24.1–29.2). Mean subsidence at one, two, five and 10 years was 0.97 mm, 1.07 mm, 1.47 mm and 1.61 mm respectively. Although double-tapered stems subsided more than triple-tapered stems at all time points this was not statistically significant (p > 0.05), nor was the method of measurement used (p > 0.05). We report the levels of subsidence at which clinical outcomes and survivorship remain excellent, but based on the literature it was not possible to determine a threshold of subsidence beyond which failure was more likely. There were relatively few studies of triple-tapered stems, but given that there were no statistically significant differences, the levels presented in this review can be applied to both double and triple-tapered designs.
Cite this article: EFORT Open Rev 2021;6:331-342. DOI: 10.1302/2058-5241.6.200086
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Affiliation(s)
- Kwaku Baryeh
- The Academic Surgical Unit, South West London Elective Orthopaedic Centre, UK
| | | | - David H Sochart
- The Academic Surgical Unit, South West London Elective Orthopaedic Centre, UK
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7
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Mahon J, McCarthy CJ, Sheridan GA, Cashman JP, O'Byrne JM, Kenny P. Outcomes of the Exeter V40 cemented femoral stem at a minimum of ten years in a non-designer centre. Bone Jt Open 2020; 1:743-748. [PMID: 33367281 PMCID: PMC7750737 DOI: 10.1302/2633-1462.112.bjo-2020-0163.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aims The Exeter V40 cemented femoral stem was first introduced in 2000. The largest single-centre analysis of this implant to date was published in 2018 by Westerman et al. Excellent results were reported at a minimum of ten years for the first 540 cases performed at the designer centre in the Exeter NHS Trust, with stem survivorship of 96.8%. The aim of this current study is to report long-term outcomes and survivorship for the Exeter V40 stem in a non-designer centre. Methods All patients undergoing primary total hip arthroplasty using the Exeter V40 femoral stem between 1 January 2005 and 31 January 2010 were eligible for inclusion. Data were collected prospectively, with routine follow-up at six to 12 months, two years, five years, and ten years. Functional outcomes were assessed using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores. Outcome measures included data on all components in situ beyond ten years, death occurring within ten years with components in situ, and all-cause revision surgery. Results A total of 829 stems in 745 patients were included in the dataset; 155 patients (20.8%) died within ten years, and of the remaining 664 stems, 648 stems (97.6%) remained in situ beyond ten years. For the 21 patients (2.5%) undergoing revision surgery, 16 femoral stems (1.9%) were revised and 18 acetabular components (2.2%) were revised. Indications for revision in order of decreasing frequency were infection (n = 6), pain (n = 6), aseptic component loosening (n = 3), periprosthetic fracture (n = 3), recurrent dislocation (n = 2), and noise production (ceramic-on-ceramic squeak) (n = 1). One patient was revised for aseptic stem loosening. The mean preoperative WOMAC score was 61 (SD 15.9) with a mean postoperative score of 20.4 (SD 19.3) (n = 732; 88.3%). Conclusion The Exeter V40 cemented femoral stem demonstrates excellent functional outcomes and survival when used in a high volume non-designer centre. Outcomes are comparable to those of its serially validated predecessor, the Exeter Universal stem. Cite this article: Bone Jt Open 2020;1-12:743–748.
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Affiliation(s)
- John Mahon
- Cappagh National Orthopaedic Hospital, Dublin, Ireland
| | | | | | - James P Cashman
- Cappagh National Orthopaedic Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
| | - John M O'Byrne
- Cappagh National Orthopaedic Hospital, Dublin, Ireland.,Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Paddy Kenny
- Cappagh National Orthopaedic Hospital, Dublin, Ireland.,Connolly Hospital Blanchardstown, Dublin, Ireland
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8
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Abstract
AIMS We present the results, in terms of survival, clinical outcome, and radiological appearance at 20 years, in a cohort of 225 cemented Exeter Universal femoral components (Stryker, Newbury, UK) implanted in 207 patients, at a district general hospital. METHODS All patients in this study had a total hip arthroplasty (THA) using an Exeter Universal femoral component with a cemented (n = 215) or cementless (n = 10) acetabular component. Clinical and radiological data were collected prospectively at one year, five years, and every five years thereafter. Patients lost to radiological and clinical follow-up (five) were cross-referenced with National Joint Registry (NJR) data and general practitioner (GP) records to assess whether they had undergone revision for any reason. RESULTS During this period of study 144 patients (157 hips) died (69.78%). Two patients were lost to follow-up, leaving 61 patients (66 hips) available for review (29.33%). Of the 225 hips, three underwent revision for femoral failure with osteolysis. One underwent femoral component revision for treatment of a periprosthetic fracture. Eight underwent revision of the acetabular component only for loosening. Two hips had both components revised, when components were found to be loose at time of revision for acetabular loosening, though no radiological femoral osteolysis. Two patients underwent revision for infection. Using femoral loosening as an endpoint, the survival of the Exeter Universal femoral component was 98.7% (n = 220, 95% confidence interval (CI) 96.1% to 100%) at 20 to 22 years. Survival with an endpoint of revision for any reason was 92.6% (n = 209, 95% CI 89.4 to 95.55), with a 'worst-case scenario' (considering two patients lost to follow-up to have failed), the overall survival rate was 91.7% (n = 207, 95% CI 87.8 to 95.9) at 20 to 22 years. CONCLUSION Our results confirm excellent long-term results for the cemented Exeter Universal femoral componentimplanted outside of the originating centre. Cite this article: Bone Joint J 2020;102-B(10):1319-1323.
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Affiliation(s)
- Fouzia Khatun
- Department of Trauma and Orthopaedics, Norfolk and Norwich University Hospital NHS Trust, Norwich, UK
| | - Damien F Gill
- Department of Trauma and Orthopaedics, Norfolk and Norwich University Hospital NHS Trust, Norwich, UK
| | - Amit Atrey
- Department of Trauma and Orthopaedics, St Michael's Hospital, Toronto, Ontario, Canada
| | - Matthew Porteous
- Department of Trauma and Orthopaedics, West Suffolk Hospitals NHS Trust, Bury St Edmunds, UK
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Abstract
AIMS To compare long-term survival of all-cemented and hybrid total hip arthroplasty (THA) using the Exeter Universal stem. METHODS Details of 1,086 THAs performed between 1999 and 2005 using the Exeter stem and either a cemented (632) or uncemented acetabular component (454) were collected from local records and the New Zealand Joint Registry. A competing risks regression survival analysis was performed with death as the competing risk with adjustments made for age, sex, approach, and bearing. RESULTS There were 61 revisions (9.7%; 0.82 revisions/100 observed component years, (OCYs)) in the all-cemented group and 18 (4.0%; 0.30/100 OCYs) in the hybrid group. The cumulative incidence of revision at 18 years was 12.1% for cemented and 5.2% for hybrids. There was a significantly greater risk of revision for all-cemented compared with hybrids (unadjusted sub-hazard ratio (SHR) 2.44; p = 0.001), and of revision for loosening, wear, or osteolysis (unadjusted SHR 3.77; p < 0.001). After adjustment, the increased risk of all-cause revision did not reach significance at age 70 years and above. The advantage for revision for loosening, wear, and osteolysis remained at all ages. CONCLUSION This study supports the use of uncemented acetabular fixation when used in combination with the Exeter stem with improved survivorship for revision for aseptic loosening, wear, and osteolysis at all ages and for all-cause revision in patients less than 70 years. Cite this article: Bone Joint J 2020;102-B(4):414-422.
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Affiliation(s)
- David P Gwynne-Jones
- Centre for Musculoskeletal Outcomes Research, Section of Orthopaedic Surgery, Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.,Consultant Orthopaedic Surgeon, Dunedin Public Hospital, Southern District Health Board, Great King Street, Dunedin, New Zealand
| | - Andrew R Gray
- Centre for Biostatistics, Division of Health Sciences, University of Otago, Dunedin, New Zealand
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10
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Keeling P, Howell JR, Kassam AAM, Sathu A, Timperley AJ, Hubble MJW, Wilson MJ, Whitehouse SL. Long-Term Survival of the Cemented Exeter Universal Stem in Patients 50 Years and Younger: An Update on 130 Hips. J Arthroplasty 2020; 35:1042-1047. [PMID: 31882346 DOI: 10.1016/j.arth.2019.11.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND There is variable evidence regarding survivorship beyond 20 years of total hip arthroplasties in young patients. We report the long-term results of the Exeter cemented hip system in patients ≤50 years at minimum of 20 years. METHODS Clinical and radiological outcomes of 130 consecutive total hip arthroplasties in 107 patients aged 50 years or younger at primary operation were reviewed; 77% had a diagnosis other than osteoarthritis. All patients were followed at 5-year intervals, no patients were lost to follow-up, and the status of every implant is known. RESULTS Mean age at surgery was 41.8 (17-50) years. Mean follow-up was 22.0 (20.0-26.1) years. There were 79 hips surviving, 14 hips (11 patients) deceased, and 37 hips revised. Reasons for revision: 29 hips for aseptic cup loosening (26 stems revised using cement-in-cement, three left in-situ); three stems for femoral osteolysis, two related to acetabular polyethylene wear (14.1 and 17.0 years), one with Gaucher's disease (21.1 years); one broken stem (12.9 years); one cup for instability (4.3 years-stem revised using cement-in-cement); and two hips with infection (8.5 and 23.8 years). There were no cases of aseptic loosening of the Exeter stem. There were no radiologically loose stems although eight patients had radiological evidence of loosening of the cemented cup. Survivorship at 22 years was 74.9% for revision for all causes and 96.3% for revision of the stem for aseptic loosening or lysis. CONCLUSION The Exeter cemented stem has excellent survivorship at minimum 20 years in young patients. Acetabular component survivorship was less favorable, but the advent of highly cross-linked polyethylene may improve this in the long term.
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Affiliation(s)
- Parnell Keeling
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Jonathan R Howell
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Al-Amin M Kassam
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Anubhav Sathu
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - A John Timperley
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK; College of Engineering, Maths and Physical Science, University of Exeter, Exeter, Devon, UK
| | - Matthew J W Hubble
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Matthew J Wilson
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Sarah L Whitehouse
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia
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11
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Abstract
Background and purpose - No difference in outcome has been demonstrated comparing cemented taper-slip and composite beam designs in short-term randomised trials; we assessed outcome differences using a registry analysis. Patients and methods - All cemented stems with > 100 implantations were identified in the National Joint Registry of England and Wales from April 1, 2003 to September 31, 2013 and categorised as taper-slip or composite beam. Survival analyses using Kaplan-Meier and Cox regression were performed. Results - We identified 292,987 cemented arthroplasties, of which 16% (47,586) were composite beam stems, with taper-slip stems making up the remainder (n = 245,401). There was a statistically significant increased chance of revision in the composite beam group compared with the taper-slip group (1.7% vs 1.3%, p < 0.001) but statistically no significant differences of survival estimates (p = 0.06). When the 2 groups were segregated to delineate the most implanted model in each category, the differences became more profound with the most implanted taper-slip stem (Exeter V40) showing statistically and clinically significant superior 8-year survival: 97.9% compared with 97.6% for all other taper-slip; 97.5% for the most implanted composite beam (Charnley cemented stem); and 97.7% for all other composite beam. Interpretation - There was an increased incidence of revision for composite beam stems. The most implanted taper-slip stem demonstrated significant survival advantage vs. all other stems.
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Affiliation(s)
- Hussain A Kazi
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK;
| | - Sarah L Whitehouse
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia;
| | - Jonathan R Howell
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK;
| | - A John Timperley
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK; ,University of Exeter, Exeter, UK,Correspondence:
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12
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Westerman RW, Whitehouse SL, Hubble MJW, Timperley AJ, Howell JR, Wilson MJ. The Exeter V40 cemented femoral component at a minimum 10-year follow-up: the first 540 cases. Bone Joint J 2018; 100-B:1002-1009. [PMID: 30062940 DOI: 10.1302/0301-620x.100b8.bjj-2017-1535.r1] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The aim of this study was to report the initial results of the Exeter V40 stem, which became available in 2000. Patients and Methods A total of 540 total hip arthroplasties (THAs) were performed in our unit using this stem between December 2000 and May 2002. Our routine protocol is to review patients postoperatively and at one, five, and ten years following surgery. Results A total of 145 patients (26.9%) died before ten years and of the remaining 395 stems, 374 (94.7%) remain in situ. A total of 21 well-fixed stems (5.3%) were revised. Ten were exchanged using a cement-in-cement technique to facilitate acetabular revision. Three were revised for infection, one for instability, one for fracture of the stem, and six following a periprosthetic fracture. An additional 16 acetabular components (4.1%) were revised; five for aseptic loosening and 11 for instability. There were no revisions for aseptic loosening of the stem, and no evidence of aseptic loosening in any hip. The fate of every stem is known and all patients remain under review. Survivorship, with revision of the stem for aseptic loosening as the endpoint, was 100%. At 13.5 years, the Kaplan-Meier survival rate for all-cause revision of the stem was 96.8% (95% confidence interval (CI) 94.8 to 98.8) and all-cause revision (including acetabular revision, infection, and instability) was 91.2% (95% CI 88.3 to 94.1). Conclusion Conclusion No stem was revised for aseptic loosening in this series. The contemporary Exeter V40 stem continues to perform well, and survival has remained comparable with that of the Exeter Universal stem. Cite this article: Bone Joint J 2018;100-B:1002-9.
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Affiliation(s)
- R W Westerman
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - S L Whitehouse
- Queensland University of Technology (QUT), Brisbane, Australia
| | - M J W Hubble
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - A J Timperley
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - J R Howell
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - M J Wilson
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
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Kassam AM, Tillotson L, Whitehouse SL, Charity J. The Exeter Trauma Stem: A radiographic follow-up at minimum of five years post implantation. Injury 2017; 48:2773-2777. [PMID: 29031824 DOI: 10.1016/j.injury.2017.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/11/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The Exeter Trauma Stem (ETS) has been recommended by National Institute of Clinical Excellence (NICE) guidelines in the United Kingdom as a proven, cemented stem. A single laboratory study in the literature has raised possible concerns about the polished finish of the ETS and subsequent potential for accelerated loosening although there is little clinical evidence to support or refute this. METHODS The aim of this study was to assess clinical outcomes of the ETS at a minimum of five years post implantation. Primary outcomes were radiological loosening at a minimum of five years along with survivorship of the implant. Patient demographics were prospectively collected and followed up. RESULTS 218 ETS's (in 214 patients) were implanted from June 2002 until August 2008 in a single centre by a wide variety of surgeons of differing grades. Of these, 16 underwent revision surgery for fracture (2), dislocation (3), infection (1) and acetabular erosion (10) but there were no revisions for aseptic loosening of the implant. There were 64.0% (137/214) patients that had died by the time of this study. Of the remaining patients, 90 had radiographs of their hips at a minimum of 5 years with 36 of these at a minimum of 7 years post implantation. None of these had evidence of loosening. CONCLUSION The ETS is a robust and suitable stem for implantation in patients with hip fractures. There are no clinical suspicions or increased rates of loosening with the ETS in our study. The concerns about surface finish are not borne out in our clinical study which shows no evidence of loosening at a minimum of five years post operation. It confers many advantages including ease of revision and it should continue to be used as per NICE guidelines.
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Affiliation(s)
- A M Kassam
- Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW UK
| | - L Tillotson
- Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW UK
| | - S L Whitehouse
- Orthopaedic Research Unit, Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Queensland, 4037 Australia
| | - J Charity
- Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW UK.
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Petheram TG, Whitehouse SL, Kazi HA, Hubble MJW, Timperley AJ, Wilson MJ, Howell JR. The Exeter Universal cemented femoral stem at 20 to 25 years: A report of 382 hips. Bone Joint J 2017; 98-B:1441-1449. [PMID: 27803218 DOI: 10.1302/0301-620x.98b11.37668] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 07/05/2016] [Indexed: 11/05/2022]
Abstract
AIMS We present a minimum 20-year follow-up study of 382 cemented Exeter Universal total hip arthroplasties (350 patients) operated on at a mean age of 66.3 years (17 to 94). PATIENTS AND METHODS All patients received the same design of femoral component, regardless of the original diagnosis. Previous surgery had been undertaken for 33 hips (8.6%). During the study period 218 patients with 236 hips (62%) died, 42 hips (11%) were revised and 110 hips (29%) in 96 patients were available for review. The acetabular components were varied and some designs are now obsolete, however they were all cemented. RESULTS With an endpoint of revision for aseptic loosening or lysis, survivorship of the stem at 22.8 years was 99.0% (95% confidence interval (CI) 97.0 to 100). One stem was revised 21 years post-operatively in a patient with Gaucher's disease and proximal femoral osteolysis. Survivorship with aseptic loosening or lysis of the acetabular component or stem as the endpoint at 22.8 years was 89.3% (95% CI 84.8 to 93.8). With an endpoint of revision for any reason, overall survivorship was 82.9% (95% CI 77.4 to 88.4) at 22.8 years. Radiological review showed excellent preservation of bone stock at 20 to 25 years, and no impending failures of the stem. CONCLUSION The Exeter femoral stem continues to perform well beyond 20 years. Cite this article: Bone Joint J 2016;98-B:1441-9.
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Affiliation(s)
- T G Petheram
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
| | - S L Whitehouse
- Queensland University of Technology, Brisbane, Queensland, Australia
| | - H A Kazi
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
| | - M J W Hubble
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
| | - A J Timperley
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
| | - M J Wilson
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
| | - J R Howell
- The Princess Elizabeth Orthopaedic Centre, Exeter EX2 5DW, UK
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Connor E, Cowie JG, Wuestemann T, Howell JR, Whitehouse SL, Crawford RW. The use of a 3-dimensional computed tomography bone database to evaluate the risk of distal contact between the rasp tip and the endosteal cortical bone. J Orthop Surg (Hong Kong) 2016; 24:312-316. [PMID: 28031497 DOI: 10.1177/1602400308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To use a 3-dimensional computed tomography (CT) bone database to evaluate the risk of distal contact between the rasp tip and the endosteal cortical bone. METHODS Using a 3-dimensional CT bone database, the rasps for Exeter stems of 125 mm in length and body size 1, with a femoral offset of 37.5, 44, or 50 mm were compared with those for Exeter stems of 150 mm in length and same body size with the corresponding femoral offset. Rasp geometry was determined using an engineering drawing software. RESULTS Of the 631 femurs in the database, 238 (187 Caucasian and 51 Asian) were of appropriate femoral offset and proximal body size to receive a stem with an offset of 37.5, 44, or 50 mm. Of these, 145 (115 Caucasian and 30 Asian) femurs were of champagne-flute type; the prevalence was comparable between the 2 populations (61% vs. 59%, p=0.729). When using the 150-mm rasp, 70 (55 Caucasian and 15 Asian) of the 238 femurs had distal contact between the rasp and femoral cortex; the prevalence was comparable between the 2 populations (29% vs. 29%, relative risk=1.0, p=1.0). Distal contact between the rasp and femoral cortex occurred more commonly in champagne-flute-type femurs than other femurs in the anteroposterior plane (28% [41/145] vs. 2% [2/93], relative risk=13.1, p<0.001) and in the mediolateral plane (27% [39/145] vs. 14% [13/93], relative risk=1.92, p=0.019). When using the 125-mm rasp, only one femur (with a canal flare index of 4.52) had distal contact in the mediolateral plane with an offset of 37.5 mm. Distal contact between the rasp and femoral cortex occurred more often with the 150-mm rasp than the 125-mm rasp in both planes (p<0.001). CONCLUSION The use of a shorter stem may enhance anatomic fit in patients with a narrow femoral canal and prevent distal contact between the rasp and femoral cortex.
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Affiliation(s)
| | - Jonathan G Cowie
- Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Brisbane, Queensland, Australia
| | | | - Jonathan R Howell
- Princess Elizabeth Orthopaedic Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter, Devon, UK
| | - Sarah L Whitehouse
- Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Brisbane, Queensland, Australia
| | - Ross W Crawford
- Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Brisbane, Queensland, Australia
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16
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Clauss M, Bolliger L, Brandenberger D, Ochsner PE, Ilchmann T. Similar effect of stem geometry on radiological changes with 2 types of cemented straight stem: The Müller stem and the Virtec stem compared in 711 hips. Acta Orthop 2016; 87:120-5. [PMID: 26471977 PMCID: PMC4812072 DOI: 10.3109/17453674.2015.1104153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND AND PURPOSE There are 2 basic principles in cemented stem fixation: shape-closed and force-closed. We investigated 2 shape-closed straight stems, the Müller (MSS) and the Virtec (VSS), which differ only in geometrical cross section, to determine whether the difference in stem shape would affect the radiological results or long-term survival. PATIENTS AND METHODS We included 711 hips (in 646 patients) that were operated on between July 1996 and July 2003. Patients randomly received either an MSS (n = 356) or a VSS (n = 355) and were followed prospectively. Radiographs taken at a follow-up of > 10 years were analyzed for osteolysis. Kaplan-Meier (KM) survival analysis was performed using various endpoints. We also performed Cox regression analysis to identify risk factors for aseptic loosening and osteolysis of the stem. RESULTS After 10 years, KM survival with "revision of any component for any reason" was 92% (95% CI: 88-95) for the MSS and 95% (CI: 92-97) for the VSS (p = 0.1). With "revision for aseptic loosening of the stem" as the endpoint, KM survival was 96% (CI: 9-98) for the MSS and 98% (CI: 97-100) for the VSS (p = 0.2). Cox regression showed that none of the risk factors analyzed were independent regarding aseptic loosening of the stem or regarding osteolysis. INTERPRETATION The MSS and the VSS showed excellent survival for aseptic loosening after 10 years. For the 2 different stem designs, we did not find any independent risk factors for aseptic loosening or development of osteolysis.
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17
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van der Voort P, Pijls BG, Nieuwenhuijse MJ, Jasper J, Fiocco M, Plevier JWM, Middeldorp S, Valstar ER, Nelissen RGHH. Early subsidence of shape-closed hip arthroplasty stems is associated with late revision. A systematic review and meta-analysis of 24 RSA studies and 56 survival studies. Acta Orthop 2015; 86:575-85. [PMID: 25909455 PMCID: PMC4564780 DOI: 10.3109/17453674.2015.1043832] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND AND PURPOSE Few studies have addressed the association between early migration of femoral stems and late aseptic revision in total hip arthroplasty. We performed a meta-regression analysis on 2 parallel systematic reviews and meta-analyses to determine the association between early migration and late aseptic revision of femoral stems. PATIENTS AND METHODS Of the 2 reviews, one covered early migration data obtained from radiostereometric analysis (RSA) studies and the other covered long-term aseptic revision rates obtained from survival studies with endpoint revision for aseptic loosening. Stems were stratified according to the design concept: cemented shape-closed, cemented force-closed, and uncemented. A weighted regression model was used to assess the association between early migration and late aseptic revision, and to correct for confounders. Thresholds for acceptable and unacceptable migration were determined in accordance with the national joint registries (≤ 5% revision at 10 years) and the NICE criteria (≤ 10% revision at 10 years). RESULTS 24 studies (731 stems) were included in the RSA review and 56 studies (20,599 stems) were included in the survival analysis review. Combining both reviews for the 3 design concepts showed that for every 0.1-mm increase in 2-year subsidence, as measured with RSA, there was a 4% increase in revision rate for the shape-closed stem designs. This association remained after correction for age, sex, diagnosis, hospital type, continent, and study quality. The threshold for acceptable migration of shape-closed designs was defined at 0.15 mm; stems subsiding less than 0.15 mm in 2 years had revision rates of less than 5% at 10 years, while stems exceeding 0.15 mm subsidence had revision rates of more than 5%. INTERPRETATION There was a clinically relevant association between early subsidence of shape-closed femoral stems and late revision for aseptic loosening. This association can be used to assess the safety of shape-closed stem designs. The published research is not sufficient to allow us to make any conclusions regarding such an association for the force-closed and uncemented stems.
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Affiliation(s)
- Paul van der Voort
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden
| | - Bart G Pijls
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden
| | - Marc J Nieuwenhuijse
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden
| | - Jorrit Jasper
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden
| | - Marta Fiocco
- Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden
| | | | - Saskia Middeldorp
- Academic Medical Center, Department of Vascular Medicine, Amsterdam,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Edward R Valstar
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden,Department of Biomechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, University of Technology, Delft
| | - Rob G H H Nelissen
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden
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Rajakulendran K, Strambi F, Ruggeri R, Field RE. A Cannulated Tri-Tapered Femoral Stem for Total Hip Arthroplasty: Clinical and Radiological Results at Ten Years. J Arthroplasty 2015; 30:1772-6. [PMID: 25956523 DOI: 10.1016/j.arth.2015.04.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 02/23/2015] [Accepted: 04/18/2015] [Indexed: 02/01/2023] Open
Abstract
We report the ten-year clinical and radiological outcomes of a novel cannulated, tri-tapered femoral stem, used in primary total hip arthroplasty (110 stems in 98 patients). At ten years, two Tri-taper stems had been revised for infection and dislocation. The mean Oxford Hip Score improved from 13.46 pre-operatively, to 37.04. Radiological analysis revealed radiolucent lines in 57 cases, but none exceeded 2 mm thickness. Stem subsidence was identified in 63 cases, with mean distal tip migration of 3.8 mm. Survivorship with revision for aseptic loosening as the end point was 100% at 10 years. Stem survival with revision for any cause was 98.2% (95% CI, 92.9% to 99.5%). The ten-year results of the Tri-taper stem are comparable to other polished, tapered femoral stems.
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Affiliation(s)
- Karthig Rajakulendran
- The Royal National Orthopaedic Hospital, Stanmore, Middlesex, United Kingdom; The Elective Orthopaedic Centre, Epsom, Surrey, United Kingdom
| | | | | | - Richard E Field
- The Elective Orthopaedic Centre, Epsom, Surrey, United Kingdom; St George's, University of London, Cranmer Terrace, London, United Kingdom
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19
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Keurentjes JC, Pijls BG, Van Tol FR, Mentink JF, Mes SD, Schoones JW, Fiocco M, Sedrakyan A, Nelissen RG. Which implant should we use for primary total hip replacement? A systematic review and meta-analysis. J Bone Joint Surg Am 2014; 96 Suppl 1:79-97. [PMID: 25520423 DOI: 10.2106/jbjs.n.00397] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Many total hip implants are currently available on the market worldwide. We aimed to estimate the probability of revision surgery at ten years for each individual total hip implant and to compare these estimates with the National Institute for Health and Care Excellence (NICE) benchmark. METHODS We performed a meta-analysis of cohort studies. The methodological quality was assessed with use of the Assessment of Quality in Lower Limb Arthroplasty (AQUILA) checklist. We searched PubMed, Embase, Web of Science, and the Cochrane Library. Additionally, national joint registries that were full members of the International Society of Arthroplasty Registers (ISAR) were hand searched. Studies in which the authors reported the survival probability for either the acetabular or the femoral component of primary total hip replacements with use of revision for any reason or for aseptic loosening at ten years as the end point, with at least 100 implants at baseline, and in which at least 60% of the patients had primary osteoarthritis were eligible for inclusion. RESULTS The search strategy revealed 5513 papers describing survival probabilities for thirty-four types of acetabular components and thirty-two types of femoral components. Eight types of acetabular cups and fifteen types of femoral stems performed better than the NICE benchmark. CONCLUSIONS We recommend that surgeons performing a primary total hip replacement use an implant that outperforms the NICE benchmarks.
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Affiliation(s)
- J Christiaan Keurentjes
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
| | - Bart G Pijls
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
| | - Floris R Van Tol
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
| | - Jill F Mentink
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
| | - Stephanie D Mes
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
| | - Jan W Schoones
- Walaeus Library, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands
| | - Marta Fiocco
- Department of Medical Statistics and BioInformatics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands
| | - Art Sedrakyan
- Weill Cornell Medical College, 402 East 67th Street, New York, NY 10065
| | - Rob G Nelissen
- Department of Orthopaedic Surgery, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, Leiden, the Netherlands. E-mail address for J.C. Keurentjes:
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Abstract
This prospective study was conducted to demonstrate that the matte-finish Basis CL cemented endoprosthetic stem delivers good qualitative results after 10 years. Between January and December 1999, 205 consecutive hips (201 patients; 74.5 ± 6.8 years at surgery) underwent primary total hip arthroplasty with the Basis CL and the same acetabular cup (RM Classic cup) at a single institution. Follow-up data at 10 years was available for 120 hips (average follow-up of 8.9 years, ±2.9). Mean Harris Hip Score improved from 39.5 ± 16.8 at baseline to 75.9 ± 16.7 at 10-year follow-up (p<0.001). Four hips required revision during the study: three for infection and one for pain. There were no cases of aseptic loosening, implant migration, or stem fracture. Cumulative survival at 10 years was 97.4% with the endpoint of revision for any reason. In conclusion, results with the matte-finish cemented Basis CL indicated that it was safe and effective after medium-term follow-up.
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21
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Field RE, Rajakulendran K, Eswaramoorthy VK, Rushton N. Three-year prospective clinical and radiological results of a new flexible horseshoe acetabular cup. Hip Int 2012; 22:598-606. [PMID: 23233172 DOI: 10.5301/HIP.2012.10291] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/29/2012] [Indexed: 02/04/2023]
Abstract
We report the three-year results of a new flexible, horseshoe-shaped acetabular cup, with a carbon fibre reinforced polyetheretherketone (CFR-PEEK) bearing surface. The 3 mm thick composite cup is designed to conserve acetabular bone stock and reproduce a near-physiological stress distribution to the adjacent bone. The cup is intended to articulate against a large diameter ceramic femoral head to produce a low-wear bearing couple that generates minimal wear debris. A prospective, two-centre clinical study of the MITCH PCR cup was started in January 2007, to verify its safety and performance. Twenty-five MITCH PCR cups were implanted by three surgeons. There were 12 men and 13 women, with a mean age of 67.9 years (range 57.4 to 74.9). The mean Oxford hip score improved from 19.6 (SD 7.5) preoperatively to 43.5 (SD 7) at 3 years. The mean Harris hip score improved from 52.9 (SD 7) to 91.4 (SD 13.8) and the Euroqol-5D score increased from 62.6 (SD 18.4) to 82.8 (SD 19). One revision of the acetabular cup was undertaken at 21 months for squeaking. This has been investigated and modification of the articular geometry has resolved the problem, on in-vitro testing. Radiological analysis showed good early osseointegration of the MITCH PCR cup. However at three years, five cases of acetabular component migration and calcar resorption were observed. Three patients have subsequently undergone revision of the acetabular cup, at 41, 42 and 50 months respectively. The cause of the osteolysis is the subject of on-going investigation.
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Abstract
BACKGROUND Techniques that ensure femoral bone preservation after primary THA are important in younger patients who are likely to undergo revision surgery. QUESTIONS/PURPOSES We examined femoral stem survival, bone deficiency at revision arthroplasty, and radiographic bone loss in hips implanted with a cemented polished double-taper stem in a cohort of patients younger than 55 years. METHODS We reviewed 197 hips (median patient age, 47 years; range, 16-54 years) after a minimum followup of 2 years (median, 7 years; range, 2-19 years) since primary THA. Clinically, we determined survival to major and minor stem revision and cases of bone deficiency requiring a long stem or impaction bone grafting or created by the need for femoral osteotomy at revision arthroplasty. Radiographically, we assessed stem loosening, femoral osteolysis, and femoral bone deficiency. RESULTS Stem survival to major revision for aseptic loosening was 100% at 13 years and for any reason was 97% (95% CI, 93-100%). At revision of seven stems, a long stem was used in one hip, a total femoral replacement in one hip and impaction bone grafting in one hip. No femoral osteotomies were required. Bone was preserved in four hips by cement-within-cement stem exchange. No stems were radiographically loose. Proximal osteolysis was present in 11% of femurs. Femoral bone deficiency was graded as Paprosky Type I (97%) or II (3%) and Endo-Klinik Grade 0 (79%) or I (21%). CONCLUSIONS Cemented polished taper stems have high survival at 13 years in young patients and enable femoral bone preservation for subsequent revision. LEVEL OF EVIDENCE Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Donald W. Howie
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
| | - Kerry Costi
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia
| | - Margaret A. McGee
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
| | - Angela Standen
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia
| | - Lucian B. Solomon
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
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23
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Griffiths EJ, Stevenson D, Porteous MJ. Cost savings of using a cemented total hip replacement: an analysis of the National Joint Registry data. ACTA ACUST UNITED AC 2012; 94:1032-5. [PMID: 22844042 DOI: 10.1302/0301-620x.94b8.28717] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The debate whether to use cemented or uncemented components in primary total hip replacement (THR) has not yet been considered with reference to the cost implications to the National Health Service. We obtained the number of cemented and uncemented components implanted in 2009 from the National Joint Registry for England and Wales. The cost of each component was established. The initial financial saving if all were cemented was then calculated. Subsequently the five-year rates of revision for each type of component were reviewed and the predicted number of revisions at five years for the actual components used was compared with the predicted number of revisions for a cemented THR. This was then multiplied by the mean cost of revision surgery to provide an indication of the savings over the first five years if all primary THRs were cemented. The saving at primary THR was calculated to be £10 million with an additional saving during the first five years of between £5 million and £8.5 million. The use of cemented components in routine primary THR in the NHS as a whole can be justified on a financial level but we recognise individual patient factors must be considered when deciding which components to use.
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Affiliation(s)
- E J Griffiths
- West Suffolk NHS Trust, Hardwick Lane, Bury St Edmunds, Suffolk IP33 2QZ, UK.
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Burston BJ, Barnett AJ, Amirfeyz R, Yates PJ, Bannister GC. Clinical and radiological results of the collarless polished tapered stem at 15 years follow-up. ACTA ACUST UNITED AC 2012; 94:889-94. [PMID: 22733941 DOI: 10.1302/0301-620x.94b7.28799] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We prospectively followed 191 consecutive collarless polished tapered (CPT) femoral stems, implanted in 175 patients who had a mean age at operation of 64.5 years (21 to 85). At a mean follow-up of 15.9 years (14 to 17.5), 86 patients (95 hips) were still alive. The fate of all original stems is known. The 16-year survivorship with re-operation for any reason was 80.7% (95% confidence interval 72 to 89.4). There was no loss to follow-up, with clinical data available on all 95 hips and radiological assessment performed on 90 hips (95%). At latest follow-up, the mean Harris hip score was 78 (28 to 100) and the mean Oxford hip score was 36 (15 to 48). Stems subsided within the cement mantle, with a mean subsidence of 2.1 mm (0.4 to 19.2). Among the original cohort, only one stem (0.5%) has been revised due to aseptic loosening. In total seven stems were revised for any cause, of which four revisions were required for infection following revision of the acetabular component. A total of 21 patients (11%) required some sort of revision procedure; all except three of these resulted from failure of the acetabular component. Cemented acetabular components had a significantly lower revision burden (three hips, 2.7%) than Harris Galante uncemented components (17 hips, 21.8%) (p < 0.001). The CPT stem continues to provide excellent radiological and clinical outcomes at 15 years following implantation. Its results are consistent with other polished tapered stem designs.
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Affiliation(s)
- B J Burston
- Avon Orthopaedic Centre, Westbury-on-Trym, Bristol BS10 5NB, UK.
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Girard J, Glorion C, Bonnomet F, Fron D, Migaud H. Risk factors for revision of hip arthroplasties in patients younger than 30 years. Clin Orthop Relat Res 2011; 469:1141-7. [PMID: 21086195 PMCID: PMC3048251 DOI: 10.1007/s11999-010-1669-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Accepted: 11/01/2010] [Indexed: 01/31/2023]
Abstract
BACKGROUND Numerous reports of THAs in patients younger than 30 years indicate a high risk of revision. Although risk factors for revision have been reported for older patients, it is unclear whether these risk factors are the same as those for patients younger than 30 years. QUESTIONS/PURPOSES We therefore (1) determined function and survivorship of revision THAs performed in patients younger than 30 years, and (2) assessed the risk factors for revision THAs in this younger population by comparison with a group of patients younger than 30 years who did not undergo revision. PATIENTS AND METHODS We retrospectively reviewed the clinical records and radiographs of 55 patients younger than 30 years (average age at revision, 24.3 years; range, 14-30 years) who underwent 77 hip revisions. Revision was performed, on average, 4.6 years (range, 0.4-12 years) after the primary THA. The results for these 55 patients (77 revision THAs) were compared with results for a nonrevised group, including 819 THAs in patients younger than 30 years. Minimum followup of the revision group was 1 year (mean, 6.2 years; range, 1-15 years). RESULTS At followup after the revision, the Merle d'Aubigné-Postel score improved from 12.2 to 14.6. The rates of dislocation, neurologic lesions, and fractures were 15%, 7.8%, and 14%, respectively. The 10-year survival rate was 36% (95% confidence interval [CI], 21%-51%). Compared with the nonrevised group, the independent revision risk factors were young age at primary THA (OR 1.14 [1.07-1.19]), high number of previous surgeries (OR 5.41 [2.67-10.98]), and occurrence of at least one dislocation (OR 3.98 [1.74-9.07]). Hard-on-soft bearings had a higher risk (OR 3.42 [1.91-6.1]) of revision compared with hard-on-hard bearings. CONCLUSIONS Revision THAs are likely in patients younger than 30 years, and the complication rate is high. The survivorship of hip revision in this population is low and alternative solutions should be advocated whenever possible. LEVEL OF EVIDENCE Level III, therapeutic study, case control study. See the Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Julien Girard
- Department of Orthopaedics, Centre Hospitalier Régional Universitaire de Lille, Roger Salengro Hospital, Lille, France.
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White SP, John AW, Jones SA. Short-term results of total hip replacements performed by visiting surgeons at an NHS treatment centre. ACTA ACUST UNITED AC 2009; 91:1154-7. [DOI: 10.1302/0301-620x.91b9.22147] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Between December 2004 and June 2006, 136 patients (156 total hip replacements), were sent from the waiting list of the Cardiff Vale NHS Trust to the NHS Treatment Centre, Weston-super-Mare, in an attempt to reduce the waiting time for total hip replacement. Because of concerns about their outcome, each patient was contacted and invited to attend a review appointment with a consultant specialising in hip and revision hip replacement. A total of 98 patients (113 hips) were reviewed after a mean of 23 months (11 to 30). There were 104 cemented hips, seven hybrid and two cementless. An acetabular inclination of > 55° was seen in 18 (16%). Radiolucent lines around the acetabular component were seen in 76 (67%). The femoral component was in more than 4° of varus in 47 (42%). The medial floor had been breached in 13 (12%) and there was a leg-length discrepancy of more than 1 cm in ten (9%). There were three dislocations, one femoral fracture, one pulmonary embolus, one deep infection and two superficial wound infections. To date, 13% (15 hips) have been revised and a further 4% (five hips) await revision, mostly for a painful loose acetabular component. The revision rate far exceeds the 0.5% five-year failure rate reported in the Swedish Registry for the components used. This initiative and the consequent need for correction of the problems created, has significantly increased the workload of our unit.
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Affiliation(s)
- S. P. White
- Department of Orthopaedics, University Hospital Llandough, Penarth CF64 4XX, UK
| | - A. W. John
- Department of Orthopaedics, University Hospital Llandough, Penarth CF64 4XX, UK
| | - S. A. Jones
- Department of Orthopaedics, University Hospital Llandough, Penarth CF64 4XX, UK
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Ollivere B, Duckett S, August A, Porteous M. The Birmingham Hip Resurfacing: 5-year clinical and radiographic results from a District General Hospital. Int Orthop 2009; 34:631-4. [PMID: 19506866 DOI: 10.1007/s00264-009-0821-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2009] [Revised: 05/17/2009] [Accepted: 05/18/2009] [Indexed: 12/12/2022]
Abstract
We prospectively examined the functional and radiographic outcomes of a serial cohort of 104 Birmingham Hip Resurfacings in an independent centre. Final follow-up was to a mean of 61 months, and six cases were lost to follow-up. Excellent results were obtained in 91%, but obese patients had significantly (p < 0.03) poorer post-operative outcomes. Whilst there were no cases of neck fracture neck narrowing of up to 20 mm was noted. Radiolucent lines were present in a single zone in 9.4% (9/96) acetabular and 3.1% (3/96) femoral components. However, no components were definitely loose and there were no revisions for any reason during the period of the study. This independent series confirms that the Birmingham Hip Resurfacing gives excellent early clinical results and little early evidence of radiographic failure. The high rate of neck narrowing gives us cause for concern and we would recommend regular radiographic follow-up.
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Affiliation(s)
- B Ollivere
- Department of Trauma & Orthopaedics, West Suffolk Hospital, Bury St Edmunds, UK.
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Abstract
We describe 129 consecutive revision total hip replacements using a Charnley-Kerboull femoral component of standard length with impaction allografting. The mean follow-up was 8.2 years (2 to 16). Additionally, extramedullary reinforcement was performed using struts of cortical allograft in 49 hips and cerclage wires in 30. There was one intra-operative fracture of the femur but none later. Two femoral components subsided by 5 mm and 8 mm respectively, and were considered to be radiological failures. No further revision of a femoral component was required. The rate of survival of the femoral component at nine years, using radiological failure as the endpoint, was 98%. Our study showed that impaction grafting in association with a Charnley-Kerboull femoral component has a low rate of subsidence. Reconstruction of deficiencies of distal bone with struts of cortical allograft appeared to be an efficient way of preventing postoperative femoral fracture for up to 16 years.
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Affiliation(s)
- L. Kerboull
- Marcel Kerboull Institute, 39 rue Buffon, 75005 Paris, France
| | - M. Hamadouche
- Department of Orthopaedic and Reconstructive Surgery Service A, Centre Hospitalo-Universitaire Cochin-Port Royal, 27 Rue du Fauborg St Jacques, 75014 Paris, France
| | - M. Kerboull
- Marcel Kerboull Institute, 39 rue Buffon, 75005 Paris, France
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