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Incesoy MA, Yildiz F, Pulatkan MA, Yesiller OF, Toluk O, Erdem AC, Tuncay I. CT-based, robotic-arm assisted total hip arthroplasty (Mako) through anterior approach provides improved cup placement accuracy but no difference in clinical outcomes when compared to conventional technique. Technol Health Care 2023:THC231111. [PMID: 38217557 DOI: 10.3233/thc-231111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
BACKGROUND With the restoration of the natural hip biomechanics, a successful total hip arthroplasty (THA) and long-term survival is pursued. Although robotic THA (rTHA) has been developed to increase accuracy of implant positioning, leg lengths and offsets, discussions about its radiological and clinical advantages over conventional THA (cTHA) continues. OBJECTIVE The aim of this study was to compare clinical and radiological outcomes of robotic and conventional THA. METHODS This retrospective study compares functional and radiological outcomes of 82 rTHA with a matched group of 82 cTHA in terms of age, sex, body mass index and preoperative functional scores. The minimum follow up was 12 months for all patients. Functional outcomes were Harris Hip Score (HHS) and the Western Ontario and McMaster University Osteoarthritis index (WOMAC) evaluated pre- and postoperatively. Radiological evaluations included position of cup placement according to Lewinnek and Callanan safe zones, Canal Fill Ratio (CFR), Leg Length Discrepancy (LLD), Lateral offset (LO) and Femoral Component Alignment (FCA). Complications were also evaluated. RESULTS In the rTHA group, 91.5% (75 out of 82) of the acetabular cups were positioned within the safe zone whereas it was 63.4% (52 out of 82) for the cTHA group (p< 0.001). According to Callanan, they were 84.1% and 50%, respectively (p< 0.001). Between the groups, no statistically significant difference was found in CFR, LLD, HO, FCA, AI, AA, WOMAC, HHS and major complication rates. CONCLUSION rTHA is superior to cTHA in terms of accuracy and reproducibility of the cup placement, however no apparent clinical benefit was found in short term follow.
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Affiliation(s)
- Mustafa Alper Incesoy
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Fatih Yildiz
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Mehmet Anil Pulatkan
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Omer Faruk Yesiller
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ozlem Toluk
- Department of Biostatistics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ahmet Can Erdem
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ibrahim Tuncay
- Department of Orthopedics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Merfort R, Maffulli N, Hofmann UK, Hildebrand F, Simeone F, Eschweiler J, Migliorini F. Head, acetabular liner composition, and rate of revision and wear in total hip arthroplasty: a Bayesian network meta-analysis. Sci Rep 2023; 13:20327. [PMID: 37989863 PMCID: PMC10663607 DOI: 10.1038/s41598-023-47670-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023] Open
Abstract
Total hip arthroplasty (THA) is a common procedure for patients suffering from hip pain e.g. from osteoarthritis, osteonecrosis, or hip fractures. The satisfaction of patients undergoing THA is influenced by the choice of implant type and material, with one key factor being the selection of the appropriate material combination for the bearing surface. In this Bayesian network meta-analysis, we investigated the impact of material combinations for the bearing surface on the longevity of hip implants. The wear penetration rate per year and the total wear penetration in the liner resulting from different material combinations, as well as the survival rate at last follow-up, were examined. We analyzed a total of 663,038 THAs, with 55% of patients being women. Mean patient age was 59.0 ± 8.1 years and mean BMI 27.6 ± 2.6 kg/m2. The combination of an aluminium oxide (Al2O3) head and an Al2O3 liner demonstrated the lowest wear penetration at last follow-up and the lowest rate of wear penetration per year. Additionally, the combination of a crosslinked polyethylene (XLPE) liner and a zircon oxide (ZrO2) head demonstrated the lowest rate of revision at last follow-up. These findings underscore the importance of careful material selection for hip implant bearing surfaces to optimize their longevity and patient satisfaction after THA.
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Affiliation(s)
- Ricarda Merfort
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, 52074, Aachen, Germany
| | - Nicola Maffulli
- Department of Medicine and Psicology, University La Sapienza, Rome, Italy
- Faculty of Medicine, School of Pharmacy and Bioengineering, Keele University, Thornburrow Drive, Stoke-on-Trent, England, UK
- Centre for Sports and Exercise Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Mile End Hospital, 275 Bancroft Road, London, E1 4DG, England, UK
| | - Ulf Krister Hofmann
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, 52074, Aachen, Germany
| | - Frank Hildebrand
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, 52074, Aachen, Germany
| | - Francesco Simeone
- Department of Orthopaedic and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical University, 39100, Bolzano, Italy
| | - Jörg Eschweiler
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, 52074, Aachen, Germany
| | - Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, 52074, Aachen, Germany.
- Department of Orthopaedic and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical University, 39100, Bolzano, Italy.
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3
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Migliorini F, Maffulli N, Pilone M, Bell A, Hildebrand F, Konrads C. Risk factors for liner wear and head migration in total hip arthroplasty: a systematic review. Sci Rep 2023; 13:15612. [PMID: 37730762 PMCID: PMC10511625 DOI: 10.1038/s41598-023-42809-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023] Open
Abstract
Total hip arthroplasty (THA) is a successful orthopaedic surgical procedure, and its longevity depends on bearing components and implant fixation. Optimizing polyethylene and ceramics has led to improved wear parameters and contributed to improved long-term outcomes. The present systematic review investigated whether time span from implantation, patient characteristics and performance status exert an influence on liner wear and head migration in THA. This study was conducted in conformity to the 2020 PRISMA guidelines. All the clinical investigations which reported quantitative data on the amount of liner wear and head migration in THA were considered. Only studies which reported quantitative data at least on one of the following patient characteristics were suitable: mean age, mean BMI (kg/m2), sex, side, time span between the index THA and the last follow-up (months) were eligible. A multiple linear model regression analysis was employed to verify the association between patient characteristics and the amount of liner wear and/or head migration. The Pearson Product-Moment Correlation Coefficient was used to assess the association between variables. Data from 12,629 patients were considered. The mean length of the follow-up was 90.5 ± 50.9 months. The mean age of patients at surgery was 58.4 ± 9.4 years, and the mean BMI was 27.2 ± 2.5 kg/m2. 57% (7199 of 12,629 patients) were women, and in 44% (5557 of 12,629 patients) THAs were performed on the left. The mean pre-operative Harris hip score was 46.5 ± 6.0 points. There was evidence of a moderate positive association between the amount of liner wear and the time elapsed between the index surgery to the follow-up (P = 0.02). There was evidence of a moderate positive association between the amount of head migration and the time elapsed between the index surgery to the follow-up (P = 0.01). No further statistically significant association was found. The time elapsed between the index surgery to the follow-up was the most important factor which influence the head migration and liner wear in THA. Patients' characteristics and preoperative physical activity did not influence the amount of head migration and liner wear.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
- Department of Orthopaedic and Trauma Surgery, Academic Hospital of Bolzano, Teaching Hospital of Paracelsus Medical University (PMU), 39100, Bolzano, Italy.
- Department of Orthopaedic and Trauma Surgery, Eifelklinik St.Brigida, Simmerath, Germany.
| | - Nicola Maffulli
- Department of Orthopaedic and Trauma Surgery, Hospital Sant'Andrea, University of Rome La Sapienza, Rome, Italy
- School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Stoke on Trent, ST4 7QB, England
- Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, London, E1 4DG, England
| | - Marco Pilone
- Residency Program in Orthopaedics and Traumatology, University of Milan, 20122, Milan, Italy
| | - Andreas Bell
- Department of Orthopaedic and Trauma Surgery, Eifelklinik St.Brigida, Simmerath, Germany
| | - Frank Hildebrand
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Christian Konrads
- Department of Orthopaedics and Traumatology, Helios Hanseatic Hospital Stralsund, 18435, Stralsund, Germany
- Medical Faculty, University of Tübingen, 72076, Tübingen, Germany
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4
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Zheng C, Xu J, Wu L, Wu Y, Liu Y, Shen B. Comparisons of Different Bearing Surfaces in Cementless Total Hip Arthroplasty: A Systematic Review and Bayesian Network Analysis. J Arthroplasty 2023; 38:600-609. [PMID: 36265721 DOI: 10.1016/j.arth.2022.10.016] [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] [Received: 08/11/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND We aimed to make comparisons of different bearing surfaces in patients after cementless total hip arthroplasty. METHODS The network meta-analysis was guided by the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guideline. The primary outcomes were implant survival and Harris hip score (HHS). Secondary outcomes included linear wear rates and serum level of metal ions. Subgroup analyses were performed by: (1) classifying head sizes as small and large; (2) femoral heads as ceramic and metal; and (3) liners as metal, ceramic, polyethylene, highly cross-linked polyethylene (HXP), or vitamin E-infused highly cross-linked polyethylene (HXPE). A total of 64 eligible RCTs with different bearings were assessed. Overall inconsistency and heterogeneity were acceptable. RESULTS In the 10 years follow-up, metal-on-polythene and ceramic-on-polythene bearings with small heads showed higher risk for revisions compared with metal-on-HXP and ceramic-on-HXP bearings with small heads. Similarly, only metal or ceramic-on-polythene bearings with small heads showed inferiority in HHS compared with other bearings. Conventional polyethylene liners showed higher linear wear rates compared with HXP, HXPE, and ceramic liners at 5 and 10 years after surgery, while metal-on-metal and ceramic-on-metal bearings showed higher serum level of cobalt and chromium. CONCLUSION Bearings containing HXP, HXPE, and ceramic liners showed comparable survivorship and hip function at follow-up of 5 and 10 years. Hard-on-hard bearings containing metal had higher serum level of metal ions than others. Bearings containing conventional polyethylene had worse performance in terms of implant survival, hip function, and wear rates. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Che Zheng
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Jiawen Xu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Liming Wu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuangang Wu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuan Liu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Bin Shen
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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5
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Döring J, Buchholz A, Herbster M, Gehring J, Betke U, Chodór P, Zabrzyński J, Bertrand J, Lohmann CH, Łapaj Ł. Damage analysis of retrieved Biolox Ⓡdelta components used in hard and soft bearings. Acta Biomater 2023; 158:827-842. [PMID: 36599400 DOI: 10.1016/j.actbio.2022.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/02/2023]
Abstract
This retrieval study included 43 Biolox delta explants (18 CoC, 25 CoP). Implants were examined macroscopically, whereby damage was evaluated using a semi quantitative scoring system. Confocal microscopy was used to examine wear related damage patterns of the articulating surfaces. Scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS) was used to analyze wear marks on the implant surface and wear debris in periprosthetic tissue samples. Raman spectroscopy and X-ray diffraction (XRD) were used to quantify monoclinic zirconia fractions. On all components, in vivo wear resulted predominantly in different damage patterns caused by metal transfer. In CoC bearings stripe wear was additionally detected, and some implants underwent severe damage due to component breakage. The wear scores were higher for CoC components, with no differences between the scores for CoC heads and liners. Wear features caused comparable roughening on implants from CoC and CoP bearings. SEM studies demonstrated that most wear marks were caused by metal debris released from implant components. Grain pull-out was observed in stripe wear regions. Monoclinic phase shift was observed in a similar quantity on components from CoP and CoC bearings. The increase of monoclinic zirconia content around metal deposits was minimal and was more pronounced in areas of stripe wear. The results of this study indicate, that ZTA components in general undergo minimal wear in both, CoC and CoP bearings, however, it is more pronounced in the former. Metal deposits, as the most common wear feature, have no significant effect on monoclinic phase transition. STATEMENT OF SIGNIFICANCE: In this paper, we classify all damage patterns macroscopically according to an established scoring system and assess them regarding surface roughness (confocal microscopy) and monoclinic phase content (Raman spectroscopy) in order to derive the severity for patients. We compare hard-hard and hard-soft bearings and relate damage patterns with metal transfer based on SEM/EDS examinations. Furthermore, we work out correlations between patient-specific data, cause of revision and the physical condition of each individual sample Our cohort consists of 43 Biolox delta retrievals, a comparatively large quantity. In addition, we address current topics such as metal transfer and, based on the classification of damage patterns, provide incentives and/or meaningful focal points for further research.
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Affiliation(s)
- Joachim Döring
- Department of Orthopaedic Surgery, Otto-von-Guericke-University, Magdeburg, Germany.
| | - Adrian Buchholz
- Department of Orthopaedic Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Maria Herbster
- Institute of Materials and Joining Technology, Otto-von-Guericke-University, Magdeburg, Germany
| | - Jennifer Gehring
- Department of Orthopaedic Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Ulf Betke
- Institute of Materials and Joining Technology, Otto-von-Guericke-University, Magdeburg, Germany
| | - Paweł Chodór
- Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznań, Poland
| | - Jan Zabrzyński
- Faculty of Medicine, Nicolas Copernicus University, Toruń, Collegium Medicum in Bydgoszcz, Poland
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Christoph H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Łukasz Łapaj
- Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznań, Poland
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6
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Colucci PG, Chalmers BP, Miller TT. Imaging of the hip prior to replacement: What the surgeon wants to know. Semin Ultrasound CT MR 2023. [DOI: 10.1053/j.sult.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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7
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Spir IAZ, Anzai A, Utino A, Katayama H, Tosello G, Nery MM, Anhesini M, Tiezzi OS, Otani P, Bernardo WM. Comparison between ceramic-on-polyethylene versus metal-on-polyethylene prostheses in Total Hip Arthroplasties: a systematic review and meta-analysis. Rev Assoc Med Bras (1992) 2022; 68:1611-1618. [PMID: 36477100 PMCID: PMC9779979 DOI: 10.1590/1806-9282.022d6812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
The Guidelines Project, an initiative of the Brazilian Medical Association, aims to combine information from the medical field to standardize how to conduct, and to assist in the reasoning and decision-making of doctors. The information provided by this project must be critically evaluated by the physician responsible for the conduct that will be adopted, depending on the conditions and the clinical condition of each patient.
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Affiliation(s)
| | - Adriano Anzai
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Armelim Utino
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Haroldo Katayama
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Giuliano Tosello
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Mary Martins Nery
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Mauricio Anhesini
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | | | - Pericles Otani
- Unimed, Evidence-Based Medicine Center – Presidente Prudente (SP), Brazil
| | - Wanderley Marques Bernardo
- Federação das Unimeds do Estado de São Paulo, Federal Council of Medicine – São Paulo (SP), Brazil.,Corresponding author:
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8
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Parilla FW, Ince DC, Pashos GE, Maloney WJ, Clohisy JC. Long-Term Follow-Up of Conventional Polyethylene in Total Hip Arthroplasty in Young Patients: Heightened Wear-Related Complications Are Observed at the Beginning of the Third Decade. J Arthroplasty 2022; 37:1816-1821. [PMID: 35460812 DOI: 10.1016/j.arth.2022.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Conventional polyethylene (CPE) was used widely in the past as a bearing surface in total hip arthroplasty (THA). As CPE THAs age and the revision burden continues to grow, it is increasingly important to understand the durability and failure mechanisms of this bearing material. Currently, such long-term data remain limited, particularly in younger, more active patients in whom wear issues are of greater concern. METHODS We retrospectively reviewed 90 hips (77 patients) that underwent primary THA with CPE bearings on cobalt chrome femoral heads at age ≤50 years at 20-year minimum follow-up (mean 21.6 [20-23]). We analyzed polyethylene wear rates, clinical outcomes (modified Harris Hip Score, University of California, Los Angeles Activity Score), and implant survivorship. RESULTS Wear analysis revealed a median linear wear rate of 0.113 mm/y (95% CI 0.102-0.148) and a median volumetric wear rate of 41.20 mm3/y (95% CI 43.5-61.0). Modified Harris Hip Scores remained 37 points above preoperative baseline (P < .001) and University of California, Los Angeles scores 1.4 points above baseline (P = .018) at 21.6-year mean follow-up. Twenty-nine hips (32.2%) were revised, 20 of which (22.2%) were wear-related at a median of 15.4 years (interquartile range 11.4-19.5). Survivorship free from wear-related revision was 95.6% (95% CI 88.7-98.3), 87.9% (78.6-93.3), 78.1% (49.6-66.5), and 61.1% (41.3-67.0) at 10, 15, 20, and 25 years. CONCLUSION Wear-related issues developed at increasingly high rates after 15 years, suggesting the need for surveillance after this time. The long-term wear and survivorship data of this study may be used as a benchmark when evaluating the performance of contemporary bearings in young, active THA patients.
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Affiliation(s)
- Frank W Parilla
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Deniz C Ince
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Gail E Pashos
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - William J Maloney
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Redwood City, California
| | - John C Clohisy
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri
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9
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Giuseppe M, Mattia B, Nadia B, Raffaele V, Pasquale R, Stefano DA, Mattia S, Vincenzo DS, Giulio M. Ceramic-on-ceramic versus ceramic-on-polyethylene in total hip arthroplasty: a comparative study at a minimum of 13 years follow-up. BMC Musculoskelet Disord 2022; 22:1062. [PMID: 35039021 PMCID: PMC8764755 DOI: 10.1186/s12891-021-04950-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nowadays hip replacement is one of the most successful surgery in terms of clinical outcome and patient's satisfaction. Therefore, the choice of biomaterials in hip replacement is increasingly important with the aim of obtaining a long-term satisfaction of patient and a greater survivorship of the implants. Ceramic-on-polyethylene (COP) and ceramic-on-ceramic (CoC) bearings are two common coupling used in total hip arthroplasty. The aim of this retrospective study was to compare clinical and radiological outcomes between patients treated using CoC and CoP THA at a mean follow-up of 15 years. METHODS 86 patients, average age 65.6, were included in the study: 43 in group A bearing CoC and 43 in group B bearing CoP. Minimum follow-up was 13 years. Primary outcome was a clinical evaluation assessed by HOOS and SF-12 questionnaires. Secondary outcome was a radiological evaluation on a A-P pelvis x-ray calculating acetabular cup inclination and anteversion and detecting osteolysis. RESULT After a multivariate analysis was performed, our results show clinical outcomes in group B significantly better than in group A: statistically significant value (p < 0,05) was found in the mean HOOS-symptoms subscale (83.0 ± 15.4 in Group A vs 90.3 ± 12.2 in group B) in the SF-12 physical component score (39.7 ± 11.0 in Group A vs 48.1 ± 10.1 in group B) and in HOOS (79.0 ± 16 in Group A vs 87.0 ± 16 in group B). 3 squeaking was found in group A. The calculated mean acetabular cup inclination value was 44,87 in group A and 44,5 in group B and the mean socket version was 17,54 in group A and 15,10 in group B. No significant statistically relationship between radiographic parameters analyzed and clinical outcomes was noted. CONCLUSION The current results provide us important information about the THA long-term outcome. CoP offered significantly better results compared with CoC at long-term follow up, and thus it should be considered in the choose of bearing in THA.
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Affiliation(s)
- Malerba Giuseppe
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
| | - Basilico Mattia
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Bonfiglio Nadia
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Vitiello Raffaele
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy.
- Università Cattolica Del Sacro Cuore, Roma, Italy.
| | - Ruberto Pasquale
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
| | - D' Adamio Stefano
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Sirgiovanni Mattia
- Department of Medical Oncology and Pneumology, University Hospital Tuebingen, Tuebingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tuebingen, Tuebingen, Germany
| | - De Santis Vincenzo
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Maccauro Giulio
- Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica Del Sacro Cuore, Roma, Italy
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10
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Shang X, Fang Y. Comparison of Ceramic-on-Ceramic vs. Ceramic-on-Polyethylene for Primary Total Hip Arthroplasty: A Meta-Analysis of 15 Randomized Trials. Front Surg 2022; 8:751121. [PMID: 34977138 PMCID: PMC8716688 DOI: 10.3389/fsurg.2021.751121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 11/15/2021] [Indexed: 12/02/2022] Open
Abstract
Objective: This meta-analysis aimed to compare ceramic-on-ceramic (COC) components and ceramic-on-polyethylene (COP) components during total hip arthroplasty (THA). Settings: A meta-analysis of randomized controlled trials (RCTs) comparing COC and COP during primary THA was conducted. Electronic searches were current to March 2021. Participants: Trials were included for meta-analysis if they compared at least the bearing surfaces of COC and COP for patients undergoing primary THA and if they reported the outcomes of THA after a certain period of follow-up and only RCTs in English were included. Primary and Secondary Outcome Measures: The primary endpoints consist of audible noise, prosthesis fracture, and revision. Secondary endpoints include dislocation, deep infection, osteolysis, and prosthesis loosening. Extracted data were statistically analyzed with the Stata11.0. Results: A total of 15 RCTs containing 2,702 patients (2,813 hips) were included in this study. The audible noise [odds ratio (OR) = 5.919; 95% CI: 2.043, 17.146; p ≤ 0.001] and prosthesis fracture (OR = 35.768; 95% CI: 8.957, 142.836; p = 0.001) were significantly higher in the COC group. Hip function, revision rate, dislocation rate, deep infection rate, osteolysis rate, and prosthesis loosening rate were comparable between these two groups, while the wear rate was higher in the COP group. Conclusion: This study indicated comparable outcomes of COC and COP bearing surfaces in primary THA; high-quality RCTs with a long-term follow-up are still urgently needed to provide more evidence on the optimal bearing surfaces in primary THA.
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Affiliation(s)
- Xiaobin Shang
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Fang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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11
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Ten-year survival of ceramic-on-ceramic total hip arthroplasty in patients younger than 60 years: a systematic review and meta-analysis. J Orthop Surg Res 2021; 16:679. [PMID: 34794457 PMCID: PMC8600788 DOI: 10.1186/s13018-021-02828-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/03/2021] [Indexed: 01/10/2023] Open
Abstract
Background Total hip arthroplasty (THA) with ceramic-on-ceramic (CoC) was created to minimise wear debris and aseptic loosening. A decade ago, a meta-analysis showed a 10-year survival rate of just 89%. Based on the excellent tribology of the current CoC, significant improvement of implant survivorship is expected. In patients younger than 60, we conducted a meta-analysis to assess 10-year survival and complications after using current primary CoC THA. Materials and methods PubMed, Scopus, EMBASE, Virtual Health Library, and Cochrane Library were used to scan for published trials that met the inclusion criteria until January 2019. The qualified studies were subjected to a systematic review and proportional analysis, and the randomised controlled trials (RCTs) were included in a comparison meta-analysis. Results Thirteen studies were included 156 findings. The total number of hips was 2278. Nine studies were cohort, and four were RCTs between ceramic and polyethylene cups. The analysis revealed an average age of 44 years (range 24–54). The 10-year survival 96% (95% CI; 95.4–96.8%), aseptic loosening rate 0.516. (95% CI; 0.265–0.903), ceramic fracture rate 0.620 (95% CI; 0.34–1.034) and squeaking rate 2.687 (95% CI; 1.279–4.593). A comparison meta-analysis revealed the risk ratio (RR) for revision was 0.27 (95% CI; 0.15–0.47), and for aseptic loosening 0.15 (0.03–0.70) favouring CoC, while RR for component fracture was 1.62 (95% CI; 0.27–9.66) favouring the polyethylene. Conclusion In patients under sixty, current CoC THAs are correlated with better 10-year outcomes than before and have high survivorship rates. Level of evidence: Level I.
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12
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Holleyman RJ, Critchley RJ, Mason JM, Jameson SS, Reed MR, Malviya A. Ceramic Bearings Are Associated With a Significantly Reduced Revision Rate in Primary Hip Arthroplasty: An Analysis From the National Joint Registry for England, Wales, Northern Ireland, and the Isle of Man. J Arthroplasty 2021; 36:3498-3506. [PMID: 34238620 DOI: 10.1016/j.arth.2021.05.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Prosthetic joint infection (PJI) is a devastating complication. Studies have suggested reduction in PJI with the use of ceramic bearings. METHODS Adult patients who underwent total hip arthroplasty (THA) using an uncemented acetabular component with ceramic-on-ceramic (CoC), ceramic-on-polyethylene (CoP), or metal-on-polyethylene (MoP) bearing surfaces between 2002 and 2016 were extracted from the National Joint Registry for England, Wales, Northern Ireland, and the Isle of Man. A competing risk regression model to investigate predictors of each revision outcome was used. Time-to-event was determined by duration of implantation since primary surgery with competing risks being death or revision. The results were adjusted for age, gender, American Association of Anaesthesiologists grade, body mass index, surgical indication, intraoperative complications, and implant data. RESULTS In total, 456,457 THAs (228,786 MoP, 128,403 CoC, and 99,268 CoP) were identified. Multivariable modeling showed that the risk of revision for PJI was significantly lower with CoC (risk ratio 0.748, P < .001) and CoP (risk ratio 0.775, P < .001) compared to MoP. Significant reduction in risk of aseptic and all-cause revision was also seen. The significant protective effect of ceramic bearing was predominantly seen 2 years after implantation. Aseptic revision beyond 2 years reduced by 18.1% and 24.8% for CoC and CoP (P < .001), respectively. All-cause revision rate beyond 2 years reduced by 21.6% for CoC and 27.1% for CoP (P < .001) CONCLUSION: This study demonstrates an association between the use of ceramic as part of the bearing, with lower rates of revision for all causes, revision for infection, and revision for aseptic causes, supporting ceramic bearings in THA.
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Affiliation(s)
- Richard J Holleyman
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rebecca J Critchley
- Northumbria Healthcare NHS Foundation Trust, Wansbeck General Hospital, Ashington, United Kingdom
| | - James M Mason
- Centre for Heath Economics at Warwick, Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Simon S Jameson
- The James Cook University Hospital, Middlesbrough, United Kingdom
| | - Mike R Reed
- Northumbria Healthcare NHS Foundation Trust, Wansbeck General Hospital, Ashington, United Kingdom
| | - Ajay Malviya
- Northumbria Healthcare NHS Foundation Trust, Wansbeck General Hospital, Ashington, United Kingdom; Newcastle University, Newcastle upon Tyne, United Kingdom
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13
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El-Zein ZS, Gehrke CK, Croley JS, Siljander MP, Mallow MA, Flierl MA, Verner JJ, Baker EA. Assessing Taper Geometry, Head Size, Head Material, and Their Interactions in Taper Fretting Corrosion of Retrieved Total Hip Arthroplasty Implants. J Arthroplasty 2021; 36:S386-S394.e4. [PMID: 33832796 DOI: 10.1016/j.arth.2021.02.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/18/2021] [Accepted: 02/15/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Decreased fretting and corrosion damage at the taper interface of retrieved ceramic-on-polyethylene total hip arthroplasty (THA) implants has been consistently reported; however, resultant fretting corrosion as a function of femoral head size and taper geometry has not been definitively explained. METHODS Eight cohorts were defined from 157 retrieved THA implants based on femoral head composition (n = 95, zirconia-toughened alumina, ZTA vs n = 62, cobalt-chromium alloy, CoCr), head size (n = 56, 32mm vs n = 101, 36mm), and taper geometry (n = 84, 12/14 vs n = 73, V40). THA implants were evaluated and graded for taper fretting and corrosion. Data were statistically analyzed, including via a 23 factorial modeling. RESULTS Factorial-based analysis indicated the significant factors related to both resultant (summed) fretting and corrosion damage were head material and taper geometry; head material-taper geometry interaction was also a significant factor in resultant corrosion damage. Lower rates of moderate-to-severe fretting and corrosion damage were exhibited on ZTA heads (ZTA = 13%, CoCr = 38%), smaller heads (32mm = 18%, 36mm = 26%), and 12/14 tapers (12/14 = 13%, V40 = 35%). ZTA+32mm heads demonstrated the lowest rates of moderate-to-severe fretting and corrosion damage (12/14 = 2%, V40 = 7%), whereas CoCr heads with V40 tapers demonstrated the greatest rates of moderate-to-severe damage (32mm = 47%, 36mm = 59%). CONCLUSION In this series, retrieved implants with ZTA, 32-mm heads paired with 12/14 tapers exhibited lower rates of moderate-to-severe damage. Factorial analysis showed head material, taper geometry, and their interactions were the most significant factors associated with resultant damage grades. Isolating implant features may provide additional information regarding factors leading to fretting and corrosion damage in THA. LEVEL OF EVIDENCE IV (case series).
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Affiliation(s)
- Zein S El-Zein
- Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI
| | - Corinn K Gehrke
- Department of Orthopaedic Research, Beaumont Health, Royal Oak, MI
| | - J Sawyer Croley
- Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI
| | | | - Murphy A Mallow
- Department of Orthopaedic Research, Beaumont Health, Royal Oak, MI
| | - Michael A Flierl
- Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI; Department of Orthopaedic Surgery, Oakland University-William Beaumont School of Medicine, Rochester, MI
| | - James J Verner
- Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI; Department of Orthopaedic Surgery, Oakland University-William Beaumont School of Medicine, Rochester, MI
| | - Erin A Baker
- Department of Orthopaedic Research, Beaumont Health, Royal Oak, MI; Department of Orthopaedic Surgery, Oakland University-William Beaumont School of Medicine, Rochester, MI
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14
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Jin SY, Jin JY, Kang JK, Yoon TR, Park KS. Minimum 15-year results of metasul 28-mm metal-on-metal total hip arthroplasty in patients younger than 50 years of age. J Orthop Surg Res 2021; 16:218. [PMID: 33766094 PMCID: PMC7992988 DOI: 10.1186/s13018-021-02352-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/10/2021] [Indexed: 11/10/2022] Open
Abstract
Background Some propitious mid- and long-term studies had been reported for MoM bearings; however, most studies have addressed specific patient groups rather than younger, active patients, who probably represent the most suitable population for investigations on wear and osteolysis. The purpose of this study to evaluate the long-term results of second-generation metal-on-metal cementless total hip arthroplasty (THA) in patients aged <50 years. Methods From December 1997 to January 2004, primary THA using a metal-on-metal bearing cementless implant was performed in 63 patients (72 hips) aged <50 years. The mean follow-up duration was 18.6 (range, 15.9–22.1) years, and the mean age at initial operation was 39 (range, 22–49) years. Clinical results, complications, survivorship, osteolysis, and aseptic loosening were evaluated. Results The mean Harris hip score and Western Ontario and McMaster Universities Arthritis Index scores were improved from 57.8 (range, 28–69) points and 73.4 (range, 63–94) points preoperatively to 91.7 (range, 80–100) points and 25.5 points (range, 17–38) points, respectively, at the last follow-up. Osteolysis lesions were found in 12 hips (acetabulum, 6 and femur, 6). The notching occurred on the femoral stem neck occurred in 12 hips. The mean serum cobalt and chromium concentrations were 2.3 (range, 0.2–10.6) μg/L and 1.7 (range, 0.4–8.1) μg/L, respectively, at a mean follow-up of 12.7 years in 32 patients (50.1%). The Kaplan-Meier survivorship curve analysis with revision for any reason as the endpoint revealed that 93.1% survived at 18.6 years’ follow-up. Conclusions Second-generation metal-on-metal cementless THA was found to produce satisfactory clinical and radiographic results with a low revision rate for osteolysis and aseptic loosening in patients aged less than 50 years.
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Affiliation(s)
- Sheng-Yu Jin
- Department of Orthopedics, Center for Joint Disease, Chonnam National University Hwasun Hospital, 322, Seo Yang-Ro, Hwasun-Eup, Hwasun-Gun, Jeonnam, 519-809, Republic of Korea
| | - Jing-Yao Jin
- Department of Orthopedics, Center for Joint Disease, Chonnam National University Hwasun Hospital, 322, Seo Yang-Ro, Hwasun-Eup, Hwasun-Gun, Jeonnam, 519-809, Republic of Korea
| | - Joon-Kyoo Kang
- Department of Orthopedics, Center for Joint Disease, Chonnam National University Hwasun Hospital, 322, Seo Yang-Ro, Hwasun-Eup, Hwasun-Gun, Jeonnam, 519-809, Republic of Korea
| | - Taek-Rim Yoon
- Department of Orthopedics, Center for Joint Disease, Chonnam National University Hwasun Hospital, 322, Seo Yang-Ro, Hwasun-Eup, Hwasun-Gun, Jeonnam, 519-809, Republic of Korea
| | - Kyung-Soon Park
- Department of Orthopedics, Center for Joint Disease, Chonnam National University Hwasun Hospital, 322, Seo Yang-Ro, Hwasun-Eup, Hwasun-Gun, Jeonnam, 519-809, Republic of Korea.
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Atrey A, Khoshbin A, Rolfson O, Campbell D, Wood G, Bohm E, Jones C, Kandel C, Davis J, Atri N, Abdelbary H, Moojen DJ, Dunbar M, Manning L, Paxton EW, Yates P, Waddell JP, Ravi B, Reed M. Infection: The Final Frontier of Arthroplasty Management: A Proposal for a Global Periprosthetic Joint Infection Registry from a Multinational Collaborative Group, the GAIA (Global Arthroplasty Infection Association). J Bone Joint Surg Am 2021; 103:e22. [PMID: 33433125 DOI: 10.2106/jbjs.20.01517] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Amit Atrey
- University of Toronto, Toronto, Ontario, Canada
| | | | - Ola Rolfson
- University of Gothenburg, Gothenburg, Sweden
| | - David Campbell
- Wakefield Hospital, Adelaide, South Australia, Australia
| | - Gavin Wood
- University of Queens, Kingston, Ontario, Canada
| | - Eric Bohm
- University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | | - Joshua Davis
- Menzies University, Darwin, Northern Territory, Australia
| | - Nipun Atri
- Rush University Medical Centre, Chicago, Illinois
| | | | - Dirk Jan Moojen
- Department of Orthopaedic Surgery, Joint Research OLVG, Amsterdam, the Netherlands
| | | | - Laurens Manning
- University of Western Australia, Perth, Western Australia, Australia
| | | | - Piers Yates
- University of Western Australia, Perth, Western Australia, Australia
| | | | | | - Mike Reed
- Bone and Joint Infection Registry (BAJIR), Northumbria, United Kingdom
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16
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Almaawi A, Alzuhair A, AlHakbani A, Benfaris D, Al-Abdullatif F, Alabdulkarim NH, Awwad W. Comparison of Ceramic-on-Ceramic and Ceramic-on-Highly-Crosslinked-Polyethylene in Primary Total Hip Arthroplasty: Findings of a Meta-Analysis. Cureus 2021; 13:e13304. [PMID: 33738155 PMCID: PMC7958929 DOI: 10.7759/cureus.13304] [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] [Indexed: 11/17/2022] Open
Abstract
Introduction An optimal hip implant is biocompatible, durable, and resistant to chemical and mechanical wear. This analysis aimed to compare failure (revision) and complication rates between ceramic-on-ceramic (CoC) and ceramic-on-highly-crosslinked-polyethylene (CoHXLPE) implants. Methods This review comprised of scientific literature published between 1995 and 2019. We included randomized controlled trials in adults (>18 years) that presented results of CoC and CoHXLPE total hip arthroplasty (THA) with more than two years of mean follow-up and drafted in English. The primary outcomes for this analysis were complications, revision rates, and loosening rates. Results Eight studies (1,689 hips) were included in this systematic review. There was no significant differences between COC and CoHXLPE for the risk of post-surgical complications (relative risk [RR]: 1.98, 95% confidence interval [CI]: 0.83-4.69, P = 0.12). Revision rates (RR: 1.25, 95% CI: 0.71-2.20, P = 0.43] and loosening rates between the two implants were not significantly different (RR: 1.17, 95% CI: 0.30-4.52, P = 0.82). Conclusion We report no significant differences between CoHXLPE and CoC in adults undergoing primary THA. Although introduced relatively recently, CoHXLPE is a cost-effective bearing that can be used for younger patients with no risk of increased complications in comparison to CoC. Further studies with longer follow-up periods are recommended to confirm the findings of this meta-analysis.
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Affiliation(s)
| | | | | | | | | | | | - Waleed Awwad
- Orthopaedic Surgery, King Saud University, Riyadh, SAU
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17
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Ow ZGW, Jain SR, Ng CH. Letter to the Editor on "Midterm Results of a Contemporary, Porous-Coated Acetabular System in Patients Undergoing Primary Total Hip Replacement for Degenerative Hip Disease: A Prospective, Multicenter Study". J Arthroplasty 2020; 35:3423-3424. [PMID: 32839064 DOI: 10.1016/j.arth.2020.07.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 07/29/2020] [Indexed: 02/02/2023] Open
Affiliation(s)
| | - Sneha Rajiv Jain
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Cheng Han Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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18
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Abstract
Rates of peri-prosthetic joint infection (PJI) in primary total hip and total knee arthroplasty range between 0.3% and 1.9%, and up to 10% in revision cases. Significant morbidity is associated with this devastating complication, the economic burden on our healthcare system is considerable, and the personal cost to the affected patient is immeasurable. The risk of surgical site infection (SSI) and PJI is related to surgical factors and patient factors such as age, body mass index (BMI), co-morbidities, and lifestyle. Reducing the risk of SSI in primary hip and knee arthroplasty requires a multi-faceted strategy including pre-operative patient bacterial decolonization, screening and avoidance of anaemia, peri-operative patient warming, skin antisepsis, povidone-iodine wound lavage, and anti-bacterial coated sutures. This article also considers newer concepts such as the influence of bearing surfaces on infection risk, as well as current controversies such as the potential effects of blood transfusion, laminar flow, and protective hoods and suits, on infection risk.
Cite this article: EFORT Open Rev 2020;5:604-613. DOI: 10.1302/2058-5241.5.200004
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Affiliation(s)
- Philip F Dobson
- Trauma and Orthopaedic Surgery, Royal Victoria Infirmary, Newcastle, UK
| | - Michael R Reed
- Trauma and Orthopaedic Surgery, Royal Victoria Infirmary, Newcastle, UK
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19
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Weick JW, Bullard J, Green JH, Gagnier JJ. Measures of Hip Function and Symptoms. Arthritis Care Res (Hoboken) 2020; 72 Suppl 10:200-218. [PMID: 33091262 DOI: 10.1002/acr.24231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022]
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20
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Thompson Z, Khoshbin A, Ward S, Waddell JP, Atrey A. The early- to medium-term results of a hemispherical, porous coated acetabular shell with multiple different bearing combinations are excellent with the exception of metal-on-metal. INTERNATIONAL ORTHOPAEDICS 2020; 44:2537-2543. [PMID: 33068147 DOI: 10.1007/s00264-020-04817-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/15/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE This study prospectively reports survivorship and radiographic and clinical outcomes following primary elective total hip arthroplasty (THA) using a novel single hemispherical, porous-coated acetabular cup with five different bearing combinations and a minimum of five year follow-up. METHODS Continuing post-market release monitoring of this cup, we prospectively enrolled 108 patients (121 THA) between 2009 and 2015. We followed this cohort by examining survivorship, in addition to clinical and radiological outcomes for metal-on-metal (MoM) compared with non-MoM bearing combinations (ceramic-on-ceramic, oxinium-on-polyethylene, ceramic-on-metal, and metal-on-polyethylene). RESULTS All 108 (121 hips) patients were followed up. Average age at time of surgery was 45.1 years (range 19 to 71 years) of which 42.1% were males. A total of seven (5.8%) cups were revised, all of which were MoM. No osteolysis was observed in any of the patients at the latest visit with a mean follow-up of 9.1 ± 1.7 years (range 4.4-10.7 years). With MoM excluded, survivorship of the cup at five years is 97.8%. Survivorship for MoM implants was 90.0%. Validated hip scores showed significant improvements for all bearing types and no significant difference between groups at latest follow-up (p = 0.614). There was no cup migration with any bearing surface. CONCLUSION This cup showed excellent survivorship at five year follow-up, except for patients receiving a MoM articulation. While there were concerns over the early survivorship of this cup, our cohort and joint registry data confirm excellent outcomes.
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Affiliation(s)
- Zoe Thompson
- University of Toronto, 27 King's College Cir, Toronto, ON, M5S, Canada
| | - Amir Khoshbin
- St. Michael's Hospital, University of Toronto, 30 Bond St., Toronto, ON, M5B 1W8, Canada
| | - Sarah Ward
- St. Michael's Hospital, University of Toronto, 30 Bond St., Toronto, ON, M5B 1W8, Canada
| | - James P Waddell
- St. Michael's Hospital, University of Toronto, 30 Bond St., Toronto, ON, M5B 1W8, Canada
| | - Amit Atrey
- St. Michael's Hospital, University of Toronto, 30 Bond St., Toronto, ON, M5B 1W8, Canada.
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21
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Minimum 5-Year Outcomes of Robotic-assisted Primary Total Hip Arthroplasty With a Nested Comparison Against Manual Primary Total Hip Arthroplasty: A Propensity Score-Matched Study. J Am Acad Orthop Surg 2020; 28:847-856. [PMID: 32109923 DOI: 10.5435/jaaos-d-19-00328] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Robotic-assisted technology has been a reliable tool in enhancing precision and accuracy of cup placement in total hip arthroplasty (THA). Still, questions remain on the clinical benefit of this technology. METHODS The purposes of the ongoing study were (1) to report on minimum 5-year outcomes in patients who underwent robotic-assisted primary THA (rTHA), (2) to compare those outcomes to a propensity score-matched manual primary THA (mTHA) control group, and (3) to compare radiographic measures between the groups regarding acetabular cup placement. Prospectively collected patient data were retrospectively reviewed for primary THA recipients during June 2008 to July 2013. Patients with minimum 5-year follow-up for Harris Hip Score, Forgotten Joint Score-12, Veterans RAND-12 Mental, Veterans RAND-12 Physical, 12-Item Short Form Survey Mental, 12-Item Short Form Survey Physical, visual analog scale, and satisfaction were included. Patient-reported outcomes, cup placement, and revision rate of the rTHA group were compared with those of a propensity score-matched mTHA control group. RESULTS Sixty-six rTHAs were matched to 66 mTHAs. The rTHA group reported significantly higher Harris Hip Score, Forgotten Joint Score-12, Veterans RAND-12 Physical, and 12-Item Short Form Survey Physical (P < 0.001, P = 0.002, P = 0.002, P = 0.001). The acetabular implant placement by rTHA had a 9 and 4.7-fold reduced risk of placement outside the Lewinnek and Callanan safe zones, respectively (relative risk, 0.11 [95% confidence interval, 0.03 to 0.46]; P = 0.002; relative risk, 0.21 [95% confidence interval, 0.01 to 0.47]; P = 0.001). In addition, rTHA recipients had lesser absolute values of leg length discrepancy and global offset (P = 0.091, P = 0.001). CONCLUSIONS Patients who received rTHA reported favorable outcomes at minimum 5-year follow-up. Furthermore, in comparison to a propensity score pair-matched mTHA group, rTHAs reported higher patient-reported outcome scores and had 89% reduced risk of acetabular implant placement beyond the Lewinnek safe zone and 79% reduced risk of placement beyond the Callanan safe zone. LEVEL OF EVIDENCE Level III.
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22
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Bistolfi A, Ferracini R, Aprato A, Massè A, Daghino W, Lea S, Artiaco S, Lee GC. Third generation delta ceramic-on-ceramic bearing for total hip arthroplasty at mid-term follow-up. J Orthop 2020; 22:397-401. [PMID: 32968340 DOI: 10.1016/j.jor.2020.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/23/2020] [Indexed: 02/08/2023] Open
Abstract
Purpose to evaluate the results of Delta ceramic-on-ceramic (CoC) for total-hip-arthroplasty (THA). Methods 261 THA using Delta-CoC, retrospectively analyzed. A 36 mm head was used in 189 cases and a 32/40 mm in the others. The series have been compared to a group of 89 THA with Forte-CoC. Results The Harris-Hip-Score improved from 49.1 ± 14.3 to 92.0 ± 8.9 (P < 0.001). In the Delta group there were one ceramic fracture and 2 dislocations. Two hips underwent revision. There were one revision in the Forte group for instability and one squeaking hip. Conclusions The new ceramic bearings provides a safe bearing for THA, with rare complications.
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Affiliation(s)
- Alessandro Bistolfi
- AO Città Della Salute e Della Scienza. Department of Orthopeadics, Traumatology and Rehabilitative Medicine, CTO Hospital, Turin, Italy
| | - Riccardo Ferracini
- Hoelloker Orthopaedics, Turin Italy. University of the Studies of Genova. Genova, Italy
| | - Alessandro Aprato
- AO Città Della Salute e Della Scienza. Department of Orthopeadics, Traumatology and Rehabilitative Medicine, CTO Hospital, Turin, Italy
| | - Alessandro Massè
- AO Città Della Salute e Della Scienza. Department of Orthopeadics, Traumatology and Rehabilitative Medicine, CTO Hospital, Turin, Italy.,Hoelloker Orthopaedics, Turin Italy. University of the Studies of Genova. Genova, Italy.,University of the Studies of Turin, Turin, Italy
| | - Walter Daghino
- AO Città Della Salute e Della Scienza. Department of Orthopeadics, Traumatology and Rehabilitative Medicine, CTO Hospital, Turin, Italy
| | - Sara Lea
- University of the Studies of Turin, Turin, Italy
| | - Stefano Artiaco
- AO Città Della Salute e Della Scienza. Department of Orthopeadics, Traumatology and Rehabilitative Medicine, CTO Hospital, Turin, Italy
| | - Gwo-Chin Lee
- Hospital of the University of Pennsylvania, Penn Presbyterian Medical Center, Pennsylvania Hospital, USA
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23
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Vajapey SP, Morris J, Li D, Greco NG, Li M, Spitzer AI. Outcome Reporting Patterns in Total Hip Arthroplasty. JBJS Rev 2020; 8:e0197. [DOI: 10.2106/jbjs.rvw.19.00197] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Feng B, Ren Y, Cao S, Lin J, Jin J, Qian W, Weng X. Comparison of ceramic-on-ceramic bearing vs ceramic-on-highly cross-linked polyethylene-bearing surfaces in total hip arthroplasty for avascular necrosis of femoral head: a prospective cohort study with a mid-term follow-up. J Orthop Surg Res 2019; 14:388. [PMID: 31775827 PMCID: PMC6882238 DOI: 10.1186/s13018-019-1410-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/10/2019] [Indexed: 11/18/2022] Open
Abstract
Background The ideal bearing surface for patients of avascular necrosis (AVN) undergoing total hip arthroplasty (THA) remains controversial. The purpose of this study is to evaluate the clinical outcomes, health-related quality of life (HRQL), and wear of the bearing surface between ceramic-on-ceramic (CoC) and ceramic-on-highly cross-linked polyethylene (CoXPE) THA for patients of AVN after midterm follow-up. Methods We performed a retrospective case-control analysis of 93 CoC and 77 CoXPE consecutive THAs for patients of AVN. The cases were followed at a minimum 5 years follow-up (average 7 years). Harris hip score (HHS) score and bearing-related complications were assessed. The health-related quality of life (HRQL) was assessed with the Short Form 36 (SF-36). Plain radiographs and computed tomography (CT) were used for radiographic evaluation. Results Both the CoC group and CoXPE group showed statistically significant improvements in HHS scores with no difference between the two bearing surfaces. There was no significant difference as for SF-36 at the latest follow-up between two groups, except for significant higher scores in the dimensions of general health in the CoC group (75.7 vs 64.7, P = 0.032). No radiographic evidence of osteolysis and loosening was present at the final follow-up. The mean wear rate of the CoC was 0.0096 mm/year and the CoXPE was 0.047 mm/year after evaluation with reconstructed CT. Conclusions CoC THAs acts as well as CoXPE THAs for patients with femoral head avascular necrosis after midterm follow-up. CoC bearing can significantly decrease the wearing rate than CoXPE bearing.
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Affiliation(s)
- Bin Feng
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, 100730, China
| | - Yi Ren
- Peking Union Medical College, Beijing, 100730, China
| | - Shiliang Cao
- Peking Union Medical College, Beijing, 100730, China
| | - Jin Lin
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, 100730, China
| | - Jin Jin
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, 100730, China
| | - Wenwei Qian
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, 100730, China
| | - Xisheng Weng
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, 100730, China.
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Solarino G, Zagra L, Piazzolla A, Morizio A, Vicenti G, Moretti B. Results of 200 Consecutive Ceramic-on-Ceramic Cementless Hip Arthroplasties in Patients Up To 50 Years of Age: A 5-24 Years of Follow-Up Study. J Arthroplasty 2019; 34:S232-S237. [PMID: 30777621 DOI: 10.1016/j.arth.2019.01.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/02/2019] [Accepted: 01/24/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Ceramic-on-ceramic (CoC) bearings due to their mechanical properties can be used in primary total hip arthroplasty (THA) especially in young patients requiring a long-lasting implant. The goal of this study is to analyze the results of a series of 200 consecutive CoC THAs in patients aged 50 years or less at the time of surgery. METHODS A retrospective study was conducted on the first 200 consecutive CoC arthroplasties performed using the direct lateral approach on 105 females and 81 males (14 bilateral cases) with an average age of 44.2 (16-50) years. The diagnosis was primary or post-traumatic osteoarthritis in 94 cases, avascular necrosis of the femoral head in 47, displaced intracapsular femoral neck fracture in 29, osteoarthritis secondary to developmental dysplasia of the hip/Legg-Calvè-Perthes disease/slipped capital femoral epiphysis in 20, and rheumatic diseases in 10 cases. The preoperative Harris Hip Score was 32.5 on average (range 15-55). All the implants were cementless. In 177 THAs the coupling was alumina-on-alumina, and in 23 cases the coupling was AMC-on-AMC (alumina matrix composite). RESULTS Twenty-five patients with 28 THAs were lost at the final follow-up, 2 stems were revised due to subsidence, 1 cup was revised due to malposition, 1 femoral head was changed because of impingement, and 1 THA was revised for periprosthetic infection. Three patients sustained a Vancouver B1 periprosthetic femoral fracture. At the final follow-up (mean 14.9 years; minimum 5 years to maximum 24 years), 172 THAs were eligible for clinical and radiographic evaluation: none was revised for wear and/or breakage of the ceramic components. Harris Hip Score rose up to a mean value of 90.1 (52-100). CONCLUSION The present report demonstrates that CoC coupling offers excellent long-term results in THA performed in young patients with very low wear and no adverse effects caused by the material.
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Affiliation(s)
- Giuseppe Solarino
- Department of Basic Medical Sciences, Neuroscience and Organs of Sense, School of Medicine, AOU Policlinico Consorziale, Università di Bari "Aldo Moro", Bari, Italy
| | - Luigi Zagra
- Hip Department, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Andrea Piazzolla
- Department of Basic Medical Sciences, Neuroscience and Organs of Sense, School of Medicine, AOU Policlinico Consorziale, Università di Bari "Aldo Moro", Bari, Italy
| | - Arcangelo Morizio
- Department of Basic Medical Sciences, Neuroscience and Organs of Sense, School of Medicine, AOU Policlinico Consorziale, Università di Bari "Aldo Moro", Bari, Italy
| | - Giovanni Vicenti
- Department of Basic Medical Sciences, Neuroscience and Organs of Sense, School of Medicine, AOU Policlinico Consorziale, Università di Bari "Aldo Moro", Bari, Italy
| | - Biagio Moretti
- Department of Basic Medical Sciences, Neuroscience and Organs of Sense, School of Medicine, AOU Policlinico Consorziale, Università di Bari "Aldo Moro", Bari, Italy
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Shi XT, Li CF, Cheng CM, Feng CY, Li SX, Liu JG. Preoperative Planning for Total Hip Arthroplasty for Neglected Developmental Dysplasia of the Hip. Orthop Surg 2019; 11:348-355. [PMID: 31197911 PMCID: PMC6595139 DOI: 10.1111/os.12472] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/05/2019] [Accepted: 05/12/2019] [Indexed: 12/12/2022] Open
Abstract
Developmental dysplasia of the hip (DDH) is accompanied by morphological alterations on both the acetabular and the femoral side. Total hip arthroplasty (THA) provides effective treatment in cases of neglected DDH but requires elaborate preoperative planning. To determine the morphological changes resulting from the dysplasia, the anatomic acetabular position, the height of the femur head dislocation, the height of the femur head dislocation, and the combined anteversion must all be established. In addition, a vital and complicated process of strategizing leg length balance must be conducted in cases of severe DDH. Each type of leg length discrepancy (LLD), including bony and functional and anatomical LLD, should be evaluated in the context of the presence or absence of a fixed pelvic tilt. Moreover, with severe unilateral dislocated hips, a more inferior change in the original rotational center of the hip must be accounted for. Due to these multiple morphological changes, the accurate size of the prosthesis and the cup position are difficult to predict. In comparison with other methods, CT scan‐based 3‐dimensional templating provides the best accuracy. Despite the presence of anatomic alterations, various types of acetabular and femoral prostheses have been developed to treat hip dysplasia. Both cemented and cementless cups are used in DDH cases. In DDH accompanied by insufficient acetabular bone stock, a cemented cup combined with bone graft provides a reliable treatment. Monoblock stems can be used when the combined anteversion is less than 55°, and a modular stem system when this parameter is greater than 55°. Customized stems can be designed for DDH coupled with severe proximal femoral distortion. A ceramic‐on‐ceramic bearing is considered optimal for young DDH patients.
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Affiliation(s)
- Xiao-Tong Shi
- Department of Orthopaedics, Jilin University First Hospital, Changchun, China
| | - Chao-Feng Li
- Department of Orthopaedics, Jilin University First Hospital, Changchun, China
| | - Cheng-Ming Cheng
- Department of Orthopaedics, Jilin University First Hospital, Changchun, China
| | - Chun-Yang Feng
- Department of Gynecology, Jilin University Second Hospital, Changchun, China
| | - Shu-Xuan Li
- Department of Orthopaedics, Jilin University First Hospital, Changchun, China
| | - Jian-Guo Liu
- Department of Orthopaedics, Jilin University First Hospital, Changchun, China
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Stambough JB, Rames RD, Pashos GE, Maloney WJ, Martell JM, Clohisy JC. Conventional Polyethylene in Total Hip Arthroplasty in Young Patients: Survivorship, Wear Analysis, and Clinical Outcomes Between 15 and 20 Years. J Arthroplasty 2018; 33:3712-3718. [PMID: 30213544 DOI: 10.1016/j.arth.2018.08.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/09/2018] [Accepted: 08/14/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Total hip arthroplasty (THA) remains a successful procedure for most patients. However, there is a paucity of information regarding the long-term performance of conventional polyethylene (CPE) bearings in young patients undergoing THA. METHODS After accounting for incomplete follow-up of a prospective cohort of 123 THAs in patients ≤50 years, we performed a retrospective review of 101 hips in 84 patients (82.1%) with an average 17.1-year follow-up (14.7-19.6 years). Outcomes of interest included linear and volumetric wear, clinical outcome scores, implant survivorship, and patient mortality. Wear rates were calculated using Martell Software. RESULTS Wear analysis revealed median linear and volumetric wear rates of 0.106 mm/y (confidence interval, 0.079-0.133) and 43.58 mm3/y (confidence interval, 33.4-53.75). The modified Harris hip scores improved by 36 points while University of California, Los Angeles activity scores improved by 2.0 points at 15-year follow-up (P < .0001). Twenty-two hips (21.8%) were revised, 13 of which (12.8%) were for wear-related causes at an average of 14.9 years (range, 9.2-21 years) from index arthroplasty. There was significantly higher mortality in patients with a preoperative diagnosis of inflammatory avascular necrosis (P = .015). CONCLUSION Because CPE was commonly used in THA over the last 25 years, it is important to understand its implications on the growing revision burden. Significant concerns exist with regard to the long-term durability of CPE bearings in young, moderately active patients 15 years after THA. These patients should be followed closely for wear-related problems. Our results should be used as a comparison when evaluating the outcomes of more modern bearing surface combinations.
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Affiliation(s)
- Jeffrey B Stambough
- Department of Orthopaedic Surgery, The University of Arkansas for Medical Sciences, Little Rock, AR
| | - Richard D Rames
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Gail E Pashos
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - William J Maloney
- Department of Orthopedic Surgery, Stanford University School of Medicine, Redwood City, CA
| | - John M Martell
- Department of Orthopaedic Surgery and Rehabilitation Medicine, University of Chicago Medicine & Biological Sciences, Orthopaedic Biomedical Institute, Chicago, IL
| | - John C Clohisy
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
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Xu C, Guo H, Bell KL, Kuo FC, Chen JY. Pigmented villonodular synovitis does not influence the outcome following cementless total hip arthroplasty using ceramic-on-ceramic articulation: a case-control study with middle-term follow-up. J Orthop Surg Res 2018; 13:294. [PMID: 30458820 PMCID: PMC6245816 DOI: 10.1186/s13018-018-0996-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/04/2018] [Indexed: 11/12/2022] Open
Abstract
Background Pigmented villonodular synovitis (PVNS) is a relatively rare, locally aggressive, and potentially recurrent synovial disease of large joints. The purpose of this study was to investigate (1) the disease recurrence rate and (2) the treatment outcomes including Harris hip scores, complications, and revision following cementless total hip arthroplasty (THA) with ceramic-on-ceramic (CoC) articulation in patients with PVNS. Methods Twenty-two patients (14 females and 8 males) with histologically confirmed PVNS underwent cementless THA using CoC bearings between 2000 and 2013. Three patients with less than 5-year follow-up were excluded. The mean age was 35.2 years (range, 22–58 years) with a mean follow-up of 8.6 years (range, 6.9–10.8 years). A control group was matched in a 2:1 ratio with the PVNS group for age, sex, body mass index (BMI), year of surgery, and American Society of Anesthesiologists score (ASA). Postoperative outcome variables included disease recurrence, Harris Hip Scores (HHS) at the latest follow-up, complications (dislocation, squeaking, ceramic fracture), and any-cause revision. A Kaplan-Meier implant survivorship curve with 95% confidence interval (CI) of the two groups was generated. Results No recurrence of PVNS was noted in the follow-up period. The HSS in the PVNS group was 92.6 ± 5.5, which was similar to the control group (93.4 ± 4.6, p = 0.584) at the last follow-up visit. No patients sustained dislocation, osteolysis, or any ceramic fracture within the study duration. One patient in the PVNS group had a complication of squeaking, but did not require revision. Another patient in the PVNS group underwent revision surgery due to aseptic loosening. There was no significant difference in revision rates between the two groups (p = 1.000). The implant survivorship free of any revision was 90.0% (95% CI, 73.2% to 100%) in the PVNS group and 92.5% (95% CI, 82.6% to 100%) in the control group at 10 years (p = 0.99). Conclusions For young and active patients with end-stage PVNS of the hips, cementless THA using CoC bearing has similar functional outcome scores, a low complication rate, and similar implant survivorship compared to the control group.
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Affiliation(s)
- Chi Xu
- Department of Orthopaedic Surgery, General Hospital of People's Liberation Army, No.28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Heng Guo
- Department of Orthopaedic Surgery, General Hospital of People's Liberation Army, No.28 Fuxing Road, Haidian District, Beijing, 100853, China.,Department of Orthopaedic Surgery, Beijing Mentougou District Hosptial, Beijing, China
| | - Kerri L Bell
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA, USA
| | - Feng-Chih Kuo
- Department of Orthopaedic Surgery, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University, College of Medicine, No. 123, Dapi Rd., Niaosong Dist, Kaohsiung, 833, Taiwan.
| | - Ji-Ying Chen
- Department of Orthopaedic Surgery, General Hospital of People's Liberation Army, No.28 Fuxing Road, Haidian District, Beijing, 100853, China.
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29
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Langhorn J, Borjali A, Hippensteel E, Nelson W, Raeymaekers B. Microtextured CoCrMo alloy for use in metal-on-polyethylene prosthetic joint bearings: multi-directional wear and corrosion measurements. TRIBOLOGY INTERNATIONAL 2018; 124:178-183. [PMID: 30778273 PMCID: PMC6377253 DOI: 10.1016/j.triboint.2018.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The longevity of metal-on-polyethylene (MoP) prosthetic hip joint bearings, in which a polished CoCrMo femoral head articulates with a polyethylene liner, may be limited by mechanical instability or inflammation resulting from osteolysis caused by polyethylene wear debris. This study uses laser surface texturing to manufacture a pattern of shallow spherical microtexture features on a polished CoCrMo surface. Gravimetric wear measurements of a highly-crosslinked polyethylene pin articulating with a CoCrMo disc under multi-directional shear demonstrate that polyethylene wear is reduced by more 50% when articulating with a microtextured as opposed to a polished CoCrMo disc. Electrochemical measurements also show that laser texturing does not negatively affect the corrosion potential of CoCrMo.
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Affiliation(s)
- J Langhorn
- DePuy Synthes Joint Reconstruction, Warsaw, IN 46582, USA
| | - A Borjali
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - E Hippensteel
- DePuy Synthes Joint Reconstruction, Warsaw, IN 46582, USA
| | - W Nelson
- DePuy Synthes Joint Reconstruction, Warsaw, IN 46582, USA
| | - B Raeymaekers
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
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