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Ashkanfar A, Toh SMS, English R, Langton DJ, Joyce TJ. The impact of femoral head size on the wear evolution at contacting surfaces of total hip prostheses: A finite element analysis. J Mech Behav Biomed Mater 2024; 153:106474. [PMID: 38447273 DOI: 10.1016/j.jmbbm.2024.106474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
Total Hip Arthroplasty has been a revolutionary technique in restoring mobility to patients with damaged hip joints. The introduction of modular components of the hip prosthesis allowed for bespoke solutions based on the requirements of the patient. The femoral stem is designed with a conical trunnion to allow for assembly of different femoral head sizes based on surgical requirements. The femoral head diameters for a metal-on-polyethylene hip prosthesis have typically ranged between 22 mm and 36 mm and are typically manufactured using Cobalt-Chromium alloy. A smaller femoral head diameter is associated with lower wear of the polyethylene, however, there is a higher risk of dislocation. In this study, a finite element model of a standard commercial hip arthroplasty prosthesis was modelled with femoral head diameters ranging from 22 mm to 36 mm to investigate the wear evolution and material loss at both contacting surfaces (acetabular cup and femoral stem trunnion). The finite element model, coupled with a validated in-house wear algorithm modelled a human walking for 10 million steps. The results have shown that as the femoral head size increased, the amount of wear on all contacting surfaces increased. As the femoral head diameter increased from 22 mm to 36 mm, the highly cross-linked polyethylene (XLPE) volumetric wear increased by 61% from 98.6 mm3 to 159.5 mm3 while the femoral head taper surface volumetric wear increased by 21% from 4.18 mm3 to 4.95 mm3. This study has provided an insight into the amount of increased wear as the femoral head size increased which can highlight the life span of these prostheses in the human body.
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Affiliation(s)
- Ariyan Ashkanfar
- School of Engineering, Liverpool John Moores University, Liverpool, UK
| | | | - Russell English
- School of Engineering, Liverpool John Moores University, Liverpool, UK
| | | | - Thomas J Joyce
- School of Engineering, Newcastle University, Newcastle Upon Tyne, UK
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2
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Takahashi E, Chen M, Kaneuji A, Soma D, Fukui M, Kawahara N. Comparative Study of Highly Cross-Linked Polyethylene Liner Wear by Hip Center Location Using Elevated Hip Center Technique in Crowe I to III Hip Dysplasia: Outcomes for a Minimum of Eighteen Years of Follow-Up. J Arthroplasty 2023; 38:2655-2660. [PMID: 37279849 DOI: 10.1016/j.arth.2023.05.078] [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: 02/02/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND The literature has reported that supero-lateralization of the femoral head increases the rates of aseptic loosening and prosthesis revision. However, there are few reports on the influence of different hip center positions on liner wear with more than a 15-year follow-up period. METHODS From April 2000 to August 2003, 91 patients underwent 108 total hip arthroplasties using a highly cross-linked polyethylene liner combined with zirconia femoral head and cup components. Pelvic radiographs were used to assess the vertical and horizontal distances to the center of the hip and the amount of liner wear. Mean patient age at the time of surgery was 54 years (range, 33 to 73), and mean follow-up duration was 19 years (range, 18 to 21). RESULTS Average liner wear was 0.221 mm, with average annual wear of 0.012 mm/year. Mean vertical and horizontal distances for the hip center were 24.9 and 31.8 mm, respectively. There was no difference in linear wear between patients who had different hip center heights (<20, 20 to 30, and >30 mm), and quadrant partitioning showed no differences across the 4 quadrant zones. CONCLUSION At a minimum of 18 years of follow-up in patients having developmental dysplasia of the hip who had different Crowe subtypes and different hip centers, elevated hip center and uncemented fixation techniques using a highly cross-linked polyethylene on ceramic components were associated with very low wear rates and excellent functional scores.
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Affiliation(s)
- Eiji Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Mingliang Chen
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Ayumi Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Daisuke Soma
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Makoto Fukui
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Norio Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
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Matsuoka T, Takahashi Y, Ishida T, Tateiwa T, Shishido T, Yamamoto K. In vivo creep and wear performance of vitamin-E-diffused highly crosslinked polyethylene in total hip arthroplasty. Arch Orthop Trauma Surg 2023; 143:7195-7203. [PMID: 37438580 DOI: 10.1007/s00402-023-04972-1] [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: 10/30/2022] [Accepted: 06/26/2023] [Indexed: 07/14/2023]
Abstract
INTRODUCTION An acetabular liner thickness of around 6 mm remains the "gold standard" in total hip arthroplasty. Some surgeons have been recommending the use of the thickest possible liner because contact stress and strain in articulating surfaces decrease with increasing the wall thickness. The purpose of this study was to determine whether in vivo creep and wear performance could be enhanced using a thicker liner over the standard thickness in vitamin-E-diffused highly crosslinked polyethylene (HXLPE). MATERIALS AND METHODS One hundred and twenty-two hips were allocated to age-matched, sex-matched, and body mass index-matched two subgroups implanted either with a 6.8- or 8.9-mm-thick vitamin-E-diffused HXLPE liner against 28-mm cobalt-chrome femoral head, and followed-up for 7 years. Linear and volumetric penetration of femoral head into the liners attributed to creep and wear were analyzed for each group. RESULTS Compressive creep strain generated at the initial 6 months was significantly larger in the 6.8-mm group (2.6%) than in the 8.9-mm group (2.2%). The linear steady-state wear observed after 2 years was 0.0019 and 0.0015 mm/year, whereas the volumetric steady-state wear was 0.54 and 0.45 mm3/years in the 6.8- and 8.9-mm-thick groups, respectively. Although less strain in the thicker group resulted in a slightly less wear, it did not reach significant differences in the steady-state wear rates between the groups. CONCLUSION No clinical significance for using a thicker liner over the standard thickness (6.8 mm → 8.9 mm) was confirmed in the vitamin-E-diffused HXLPE according to the 7-year follow-up. The wear rates for both thicknesses were very low enough to prevent osteolysis, and no mechanical failure was observed at any follow-up interval. Nevertheless, since the significantly higher strain was seen in the thinner liner, further follow-up is needed to compare the longer term wear and the incidence of osteolysis and component fracture.
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Affiliation(s)
- Tsunehiro Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasuhito Takahashi
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
- Department of Bone and Joint Biomaterial Research, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Tsunehito Ishida
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Toshiyuki Tateiwa
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takaaki Shishido
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Callary SA, Sharma DK, D’Apollonio TM, Campbell DG. Large articulations do not increase wear rates of thin second-generation highly cross-linked polyethylene liners at ten years. Bone Jt Open 2023; 4:839-845. [PMID: 37926113 PMCID: PMC10625862 DOI: 10.1302/2633-1462.411.bjo-2023-0124.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2023] Open
Abstract
Aims Radiostereometric analysis (RSA) is the most accurate radiological method to measure in vivo wear of highly cross-linked polyethylene (XLPE) acetabular components. We have previously reported very low wear rates for a sequentially irradiated and annealed X3 XLPE liner (Stryker Orthopaedics, USA) when used in conjunction with a 32 mm femoral heads at ten-year follow-up. Only two studies have reported the long-term wear rate of X3 liners used in conjunction with larger heads using plain radiographs which have poor sensitivity. The aim of this study was to measure the ten-year wear of thin X3 XLPE liners against larger 36 or 40 mm articulations with RSA. Methods We prospectively reviewed 19 patients who underwent primary cementless THA with the XLPE acetabular liner (X3) and a 36 or 40 mm femoral head with a resultant liner thickness of at least 5.8 mm. RSA radiographs at one week, six months, and one, two, five, and ten years postoperatively and femoral head penetration within the acetabular component were measured with UmRSA software. Of the initial 19 patients, 12 were available at the ten-year time point. Results The median proximal, 2D, and 3D wear rates calculated between one and ten years were all less than 0.005 mm/year, with no patient recording a proximal wear rate of more than 0.021 mm/year. Importantly, there was no increase in the wear rate between five and ten years. Conclusion The very low wear rate of X3 XLPE liners with larger articulations remains encouraging for the future clinical performance of this material.
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Affiliation(s)
- Stuart A. Callary
- Centre for Orthopaedic and Trauma Research, The University of Adelaide and Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia
- Centre for Orthopaedic and Trauma Research, The University of Adelaide, Adelaide, South Australia
| | - Deepti K. Sharma
- Centre for Orthopaedic and Trauma Research, The University of Adelaide and Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia
| | - Taisha M. D’Apollonio
- Centre for Orthopaedic and Trauma Research, The University of Adelaide, Adelaide, South Australia
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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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6
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Alpkaya AT, Mihcin S. Dynamic computational wear model of PEEK-on-XLPE bearing couple in total hip replacements. Med Eng Phys 2023:104006. [PMID: 37308373 DOI: 10.1016/j.medengphy.2023.104006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/14/2023]
Abstract
Understanding wear mechanisms is a key factor to prevent primary failures causing revision surgery in total hip replacement (THR) applications. This study introduces a wear prediction model of (Polyetheretherketone) PEEK-on-XLPE (cross-linked polyethylene) bearing couple utilized to investigate the wear mechanism under 3D-gait cycle loading over 5 million cycles (Mc). A 32-mm PEEK femoral head and 4-mm thick XLPE bearing liner with a 3-mm PEEK shell are modeled in a 3D explicit finite element modeling (FEM) program. The volumetric and linear wear rates of XLPE liner per every million cycles were predicted as 1.965 mm3/Mc, and 0.0032 mm/Mc respectively. These results are consistent with the literature. PEEK-on-XLPE bearing couple exhibits a promising wear performance used in THR application. The wear pattern evolution of the model is similar to that of conventional polyethylene liners. Therefore, PEEK could be proposed as an alternative material to the CoCr head, especially used in XLPE-bearing couples. The wear prediction model could be utilized to improve the design parameters with the aim of prolonging the life span of hip implants.
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Affiliation(s)
| | - Senay Mihcin
- Mechanical Engineering Department, Izmir Institute of Technology, Izmir, Turkey.
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7
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Toh SMS, Ashkanfar A, English R, Rothwell G, Langton DJ, Joyce TJ. How does bicycling affect the longevity of Total Hip Arthroplasty? A finite element wear analysis. J Mech Behav Biomed Mater 2023; 139:105673. [PMID: 36669263 DOI: 10.1016/j.jmbbm.2023.105673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 12/12/2022] [Accepted: 01/07/2023] [Indexed: 01/18/2023]
Abstract
As the number of young and active individuals undergoing Total Hip Arthroplasty (THA) are increasing yearly, there is a need for hip prostheses to have increased longevity. Current investigations into the longevity of these prostheses only include walking as the patient's activity as there is limited data on the amount and intensity of other activity performed by the patient. To further understand the evolution of wear and increase the longevity of these implants, the impact of different activities on the hip prosthesis needs to be investigated. In this study, a finite element model and wear algorithm was developed to simulate both walking and bicycling over a 5-year period. The XLPE acetabular cup volumetric wear rate was found to be 33 mm3/yr while the femoral head taper wear rates were between 0.01 - 0.39 mm3/yr. The results showed that by adding bicycling of up to 80 km per week with normal walking activity, the XLPE mean volumetric wear rate increased by 67% and the metallic mean volumetric wear rate by 11%. However, the patient may gain further health benefits from this additional activity. Assistive electric bikes may also be used to further reduce the loads on the hip joint, allowing for lower amounts of wear.
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Affiliation(s)
- Shawn Ming Song Toh
- School of Engineering, Liverpool John Moores University, Liverpool, United Kingdom
| | - Ariyan Ashkanfar
- School of Engineering, Liverpool John Moores University, Liverpool, United Kingdom.
| | - Russell English
- School of Engineering, Liverpool John Moores University, Liverpool, United Kingdom
| | - Glynn Rothwell
- School of Engineering, Liverpool John Moores University, Liverpool, United Kingdom
| | | | - Thomas J Joyce
- School of Engineering, Newcastle University, Newcastle Upon Tyne, United Kingdom
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8
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Salipas A, Poole AS, Teeter MG, Somerville LE, Naudie DD, McCalden RW. A Ten-Year Radiostereometric Analysis of Polyethylene Wear Between Oxidized Zirconium and Cobalt Chrome Articulations in Total Hip Arthroplasty. J Arthroplasty 2022; 37:S692-S696. [PMID: 35245689 DOI: 10.1016/j.arth.2022.02.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/14/2022] [Accepted: 02/23/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Oxidized zirconium (OxZi) femoral heads combine the decreased abrasive properties of ceramics with the toughness of metal alloys to lower wear and increase the durability of total hip arthroplasty. The purpose of this study was to compare the 10-year polyethylene wear rates between OxZi/XLPE and cobalt chrome (CoCr)/XLPE articulations. METHODS A radiostereometric analysis (RSA) was performed on two cohorts of 23 patients who underwent total hip arthroplasty using either OxZi/XLPE or CoCr/XLPE at a minimum of 10-year follow-up. Cohorts were matched for age, gender, body mass index (BMI), and diagnosis. Polyethylene wear was measured using RSA to determine total and steady-state wear rates for both cohorts. Preoperative and postoperative patient-reported outcome measures (SF12, HHS, and Western Ontario and McMaster Universities Arthritis Index scores) were compared. RESULTS The mean total head penetration rate was found to be statistically different between the entire cohorts (OxZi 0.048 ± 0.021 mm/y, CoCr 0.035 ± 0.017 mm/y, P = .02) but not when 28-mm heads only (OxZi 0.045 ± 0.016 mm/y, CoCr 0.034 ± 0.017 mm/y, P = .066) were directly compared. The mean steady-state wear rate was not significantly different between the entire cohorts (OxZi 0.031 ± 0.021 mm/y, CoCr 0.024 ± 0.019 mm/y, P = .24) or 28-mm head cohorts (OxZi 0.028 ± 0.019 mm/y, CoCr 0.024 ± 0.019 mm/y, P = .574). Outcome measures showed no statistical difference except for the Harris Hip Score where the OxZi cohort demonstrated higher median scores. CONCLUSION Using RSA to evaluate the 10-year in-vivo head penetration, there was no statistically significant difference in steady-state wear rates between OxZi and CoCr articulations. Both bearing combinations demonstrated wear rates well below the threshold for osteolysis.
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Affiliation(s)
- Andrew Salipas
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
| | - Andrew S Poole
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
| | - Matthew G Teeter
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
| | - Lyndsay E Somerville
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
| | - Douglas D Naudie
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
| | - Richard W McCalden
- Division of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada
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Kayani B, Baawa-Ameyaw J, Fontalis A, Tahmassebi J, Wardle N, Middleton R, Stephen A, Hutchinson J, Haddad FS. Oxidized zirconium versus cobalt-chrome femoral heads in total hip arthroplasty: a multicentre prospective randomized controlled trial with ten years' follow-up. Bone Joint J 2022; 104-B:833-843. [PMID: 35775177 DOI: 10.1302/0301-620x.104b7.bjj-2021-1673.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS This study reports the ten-year wear rates, incidence of osteolysis, clinical outcomes, and complications of a multicentre randomized controlled trial comparing oxidized zirconium (OxZr) versus cobalt-chrome (CoCr) femoral heads with ultra-high molecular weight polyethylene (UHMWPE) and highly cross-linked polyethylene (XLPE) liners in total hip arthroplasty (THA). METHODS Patients undergoing primary THA were recruited from four institutions and prospectively allocated to the following treatment groups: Group A, CoCr femoral head with XLPE liner; Group B, OxZr femoral head with XLPE liner; and Group C, OxZr femoral head with UHMWPE liner. All study patients and assessors recording outcomes were blinded to the treatment groups. The outcomes of 262 study patients were analyzed at ten years' follow-up. RESULTS Patients in Group C were associated with increased mean liner wear rates compared to patients in Group A (0.133 mm/yr (SD 0.21) vs 0.031 mm/yr (SD 0.07), respectively; p < 0.001) and Group B (0.133 mm/yr (SD 0.21) vs 0.022 mm/yr (SD 0.05), respectively; p < 0.001) at ten years' follow-up. Patients in Group C were also associated with increased risk of osteolysis and aseptic loosening requiring revision surgery, compared with patients in Group A (7/133 vs 0/133, respectively; p = 0.007) and Group B (7/133 vs 0/135, respectively; p = 0.007). There was a non-statistically significant trend towards increased mean liner wear rates in Group A compared with Group B (0.031 mm/yr (SD 0.07) vs 0.022 mm/yr (SD 0.05), respectively; p = 0.128). All three groups were statistically comparable preoperatively and at ten years' follow-up when measuring normalized Western Ontario and McMaster Universities Osteoarthritis Index (p = 0.410), 36-Item Short Form Health Survey (p = 0.465 mental, p = 0.713 physical), and pain scale scores (p = 0.451). CONCLUSION The use of UHMWPE was associated with progressively increased annual liner wear rates after THA compared to XLPE. At ten years' follow-up, the group receiving UHMWPE demonstrated an increased incidence of osteolysis and aseptic loosening requiring revision surgery compared to XLPE. Femoral heads composed of OxZr were associated with trend towards reduced wear rates compared to CoCr, but this did not reach statistical significance and did not translate to any differences in osteolysis, functional outcomes, or revision surgery between the two femoral head components. Cite this article: Bone Joint J 2022;104-B(7):833-843.
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Affiliation(s)
- Babar Kayani
- Department of Trauma and Orthopaedics, University College Hospital, London, UK
| | - Joanna Baawa-Ameyaw
- Department of Trauma and Orthopaedics, University College Hospital, London, UK
| | - Andreas Fontalis
- Department of Trauma and Orthopaedics, University College Hospital, London, UK
| | - Jenni Tahmassebi
- Department of Trauma and Orthopaedics, University College Hospital, London, UK
| | - Nick Wardle
- Colchester Hospital University Foundation Trust, Colchester, UK
| | - Robert Middleton
- Department of Trauma and Orthopaedics, Bournemouth University, Bournemouth, UK
| | | | | | - Fares S Haddad
- Department of Trauma and Orthopaedics, University College Hospital, London, UK
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10
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Orita K, Goto K, Kuroda Y, Kawai T, Okuzu Y, Matsuda S. Wear resistance of first-generation highly cross-linked annealed polyethylene in cementless total hip arthroplasty is maintained 20 years after surgery. Bone Joint J 2022; 104-B:200-205. [PMID: 35094568 DOI: 10.1302/0301-620x.104b2.bjj-2021-1079.r1] [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] [Indexed: 12/13/2022]
Abstract
AIMS The aim of this study was to evaluate the performance of first-generation annealed highly cross-linked polyethylene (HXLPE) in cementless total hip arthroplasty (THA). METHODS We retrospectively evaluated 29 patients (35 hips) who underwent THA between December 2000 and February 2002. The survival rate was estimated using the Kaplan-Meier method. Hip joint function was evaluated using the Japanese Orthopaedic Association (JOA) score. Two-dimensional polyethylene wear was estimated using Martell's Hip Analysis Suite. We calculated the wear rates between years 1 and 5, 5 and 10, 10 and 15, and 15 and final follow-up. RESULTS The mean follow-up period was 19.1 years (SD 0.6; 17.3 to 20.1). The 19-year overall survival rate with the end point of all-cause revision was 97.0% (95% confidence interval (CI) 91 to 100). The mean JOA score improved from 43.2 (SD 10.6; 30 to 76) before surgery to 90.2 (SD 6.4; 76 to 98) at the final follow-up (p < 0.001). There was no osteolysis or loosening of the acetabular or femoral components. The overall steady-state wear rate was 0.013 mm/year (SD 0.012). There was no hip with a steady-state wear rate of > 0.1 mm/year. There was no significant difference in wear rates for each period. We found no significant correlation between the wear rate and age, body weight, BMI, or cup inclination. CONCLUSION First-generation annealed HXLPE shows excellent wear resistance and no acceleration of wear for approximately 20 years, with low all-cause revision rates. Cite this article: Bone Joint J 2022;104-B(2):200-205.
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Affiliation(s)
- Kazuki Orita
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Koji Goto
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Yutaka Kuroda
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Toshiyuki Kawai
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Yaichiro Okuzu
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Hospital, Kyoto, Japan
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11
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Toh SMS, Ashkanfar A, English R, Rothwell G. Computational method for bearing surface wear prediction in total hip replacements. J Mech Behav Biomed Mater 2021; 119:104507. [PMID: 33862425 DOI: 10.1016/j.jmbbm.2021.104507] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/22/2021] [Accepted: 04/01/2021] [Indexed: 11/30/2022]
Abstract
Total hip replacement (THR) is a revolutionary treatment when a hip joint becomes severely damaged. Wear is known as one of the main reasons for THR failure. Current experimental techniques to investigate the wear at the bearing surfaces of THRs are time-consuming, complicated and expensive. In this study, an in-house fretting wear algorithm has been further developed to investigate the wear damage that occurs on bearing surfaces of THRs and its consequence on the longevity of the implants. A 3D finite element model has been created with a 36 mm diameter Cobalt-Chromium femoral head and a 4 mm thick cross-linked polyethylene bearing liner. A gait loading cycle was used to simulate walking for up to 5 million cycles (Mc). The wear algorithm extracts relative displacements and contact shear stresses from the finite element package to predict the linear and volumetric wear rates. This method is shown to have modelled the evolution of wear effectively and found it to be similar to those from experimental analyses. The linear and volumetric wear per million cycles predicted in this study were 0.0375mm/Mc and 33.6mm3/Mc which are comparable to those measured in-vivo THRs. The wear patterns obtained from this study are also comparable to the wear patterns shown on available conventional polyethylene liners. This method can be used to further aid in the design and clinical technique to reduce wear rate in THRs.
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Affiliation(s)
- Shawn Ming Song Toh
- School of Engineering, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK.
| | - Ariyan Ashkanfar
- School of Engineering, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Russell English
- School of Engineering, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Glynn Rothwell
- School of Engineering, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
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12
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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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13
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Kretzer JP, Uhler M, Jäger S, Bormann T, Sonntag R, Schonhoff M, Schröder S. [Tribology in hip arthroplasty : Benefits of different materials]. DER ORTHOPADE 2021; 50:259-269. [PMID: 33630110 DOI: 10.1007/s00132-021-04077-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 11/30/2022]
Abstract
When it comes to total hip replacements, choosing the suitable material combination is of clinical relevance. The present review article examines the technical differences in wear and corrosion of the relevant material combinations of ceramics, metals, ceramized metals and various types of polyethylene. The material characteristics, which were often tested under standardized conditions in the laboratory, are compared with clinical results on the basis of evidence-graded clinical studies and on the basis of register studies. This article thus represents an up-to-date snapshot of the expectations and actual clinical outcomes of the present choice of material combinations. It shows that some tendencies from the field of materials research, e.g. with regard to cross-linked polyethylene, coincide with observations from practical clinical experience, while for other materials, a proven technical superiority has not yet been confirmed as an evident advantage in clinical practice.
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Affiliation(s)
- J Philippe Kretzer
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland.
| | - Maximilian Uhler
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | - Sebastian Jäger
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | - Therese Bormann
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | - Robert Sonntag
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | - Mareike Schonhoff
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | - Stefan Schröder
- Klinik für Orthopädie und Unfallchirurgie, Labor für Biomechanik und Implantatforschung, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
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