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Qi X, Liu J, Liu W, Qiao X, Fu J, Gao J. Association between metal implants and urinary chromium levels in US adults: a cross-sectional study from NHANES. Sci Rep 2024; 14:17111. [PMID: 39048613 PMCID: PMC11269588 DOI: 10.1038/s41598-024-68049-8] [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: 03/14/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024] Open
Abstract
Metal implants play a significant role in orthopedics, commonly used for treating fractures, joint replacement surgeries, spinal procedures, and more. Chromium (Cr), crucial in these implants, may raises health concerns. However, the relationship between metal implants and urine Cr levels remains uncertain. We aimed to evaluate this relationship. We conducted a cross-sectional study on 1419 individuals aged 40 years or older using data from the National Health and Nutrition Examination Survey (NHANES) spanning the years 2017 to 2020. Multivariate linear regression models and subgroup analysis were applied to assess associations between metal implants and urine Cr levels. Among the 1419 participants, 402 [28.3%] self-reported having metal objects in their bodies. After adjusting for potential confounding factors, metal implants were positively correlated with the accumulation of urine Cr (β = 0.41, 95% CI 0.04-0.77, p = 0.028). However, the positive correlation of metal implants with urine Cr was only present in females (β = 0.81, 95% CI 0.08-1.53, p = 0.029), but not in males. Our study revealed higher urine Cr levels in individuals with metal implants, with noticeable gender differences. Additionally, those with metal implants exhibited a more pronounced elevation in urine Cr levels with increasing age compared to individuals without implants.
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Affiliation(s)
- Xiaogang Qi
- Department of Orthopedics, Yangquan First People's Hospital, Yangquan, 045000, China
| | - Jiaming Liu
- Department of Pain Treatment, Yangquan First People's Hospital, Yangquan, 045000, China
| | - Wenhai Liu
- Department of Anesthesiology, Yangquan First People's Hospital, Yangquan, 045000, China
| | - Xiaodong Qiao
- Department of General Surgery, Yangquan First People's Hospital, Yangquan, 045000, China
| | - Junwen Fu
- Department of Orthopedics, Yangquan Coal Group General Hospital, Yangquan, 045000, China.
| | - Jiankang Gao
- Department of Endocrinology, Yangquan First People's Hospital, Yangquan, 045000, China.
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Pozzuoli A, Berizzi A, Crimì A, Belluzzi E, Frigo AC, Conti GD, Nicolli A, Trevisan A, Biz C, Ruggieri P. Metal Ion Release, Clinical and Radiological Outcomes in Large Diameter Metal-on-Metal Total Hip Arthroplasty at Long-Term Follow-Up. Diagnostics (Basel) 2020; 10:diagnostics10110941. [PMID: 33198180 PMCID: PMC7698262 DOI: 10.3390/diagnostics10110941] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 02/08/2023] Open
Abstract
Total hip arthroplasty (THA) with metal-on-metal (MoM) bearings have shown problems of biocompatibility linked to metal ion release at the local level causing an adverse reaction to metal debris (ARMD) and at a systemic level. The aim of this study was to evaluate clinical and radiological outcomes, and metal ion concentrations in the blood and urine of patients who underwent THA with the LIMA Met-Met hip system. Patients with ceramic-on-ceramic (CoC) bearings were included as a control group. In this study, 68 patients were enrolled: 34 with MoM THAs and 34 with CoC THAs. Patients were evaluated clinically (Harris Hip Score, SF-36) and radiologically at a median of 7.4 years after surgery. Whole blood and urinary cobalt and chromium levels were also assessed. Both types of implants were comparable in terms of clinical and functional results. Ion levels were significantly higher in the MoM group compared with CoC group 7 years after surgery. No correlations were found between metal ion levels and patient demographics, functional and radiological outcomes, and prosthesis features. Patient monitoring is thus advised to establish if prosthesis revision is necessary, especially in the case of MoM THA.
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Affiliation(s)
- Assunta Pozzuoli
- Laboratory of Musculoskeletal Pathology and Oncology, Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Correspondence: (A.P.); (E.B.); Tel.: +39-0498213348 (A.P. & E.B.)
| | - Antonio Berizzi
- Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (A.B.); (A.C.); (C.B.); (P.R.)
| | - Alberto Crimì
- Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (A.B.); (A.C.); (C.B.); (P.R.)
| | - Elisa Belluzzi
- Laboratory of Musculoskeletal Pathology and Oncology, Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Correspondence: (A.P.); (E.B.); Tel.: +39-0498213348 (A.P. & E.B.)
| | - Anna Chiara Frigo
- Epidemiology and Public Health Unit, Department of Cardiac Thoracic Vascular Sciences and Public Health, Biostatistics, University of Padova, Via Loredan 18, 35131 Padova, Italy;
| | - Giorgio De Conti
- Department of Radiology, University Hospital of Padova, Via Giustiniani 2, 35128 Padova, Italy;
| | - Annamaria Nicolli
- Laboratory of Industrial Toxicology, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (A.N.); (A.T.)
| | - Andrea Trevisan
- Laboratory of Industrial Toxicology, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; (A.N.); (A.T.)
| | - Carlo Biz
- Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (A.B.); (A.C.); (C.B.); (P.R.)
| | - Pietro Ruggieri
- Orthopaedic and Traumatologic Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (A.B.); (A.C.); (C.B.); (P.R.)
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Maezawa K, Nozawa M, Yuasa T, Sugimoto M, Kaneko K. Changes in serum chromium levels over 12 years after Metasul metal-on-metal total hip arthroplasty. J Orthop 2018; 15:201-204. [PMID: 29657468 DOI: 10.1016/j.jor.2018.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 01/13/2018] [Indexed: 10/17/2022] Open
Abstract
We reported the longitudinal changes in serum chromium levels over a minimum of 7 years postoperatively in five men and 25 women with a mean age of 60.3 years after primary unilateral total hip arthroplasty with a Metasul metal-on-metal articulation. The serum chromium ion level showed little variation (0.6-1.2 μg/L) from 2 to 12 years postoperatively in 16/30 patients after unilateral primary Metasul metal-on-metal total hip arthroplasty. On the other hand, the serum chromium level stayed high or showed gradual elevation in 8/30 patients, even though they had well-fixed and well-functioning prostheses.
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Affiliation(s)
- Katsuhiko Maezawa
- Department of Orthopaedic Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan
| | - Masahiko Nozawa
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Takahito Yuasa
- Department of Orthopaedic Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan
| | - Munehiko Sugimoto
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Kazuo Kaneko
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Pseudotumor in metal-on-metal hip arthroplasty: a comparison study of three grading systems with MRI. Skeletal Radiol 2018; 47:1099-1109. [PMID: 29388037 PMCID: PMC6003970 DOI: 10.1007/s00256-018-2873-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 12/09/2017] [Accepted: 01/02/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Pseudotumors, a well-known complication of metal-on-metal total hip arthroplasty (MoM THA), are well identified on metal artifact-reducing sequences magnetic resonance imaging (MARS-MRI). Several MRI grading systems are described in the orthopedic literature, but their validity is unknown in large clinical studies. Our study was undertaken to describe the classification of pseudotumors in a preselected cohort divided into high- and low-risk patients, using three pseudotumor grading systems applied on MARS-MRI, and to determine the interobserver reliability of the grading systems. PATIENTS AND METHODS A retrospective study was performed on 377 consecutive patients (240 MRI scans) treated with an M2a-38 and Taperloc stem combination (Biomet, Warsaw, IN, USA). Patients were divided into a high-risk and a low-risk group based on previous published risk factors. Two observers determined the presence of pseudotumors using three different pseudotumor grading systems for classifying MARS-MRI results. RESULTS The prevalence of pseudotumors as determined with MARS-MRI was 59% in our high-risk group, 0% in the low-risk group and 43% in the control group. Serum cobalt values were increased in the high-risk group. The kappa values of the Anderson, Hauptfleisch and Matthies grading system scores were 0.43, 0.44, and 0.49 respectively. CONCLUSIONS High-risk patients are at a high risk for pseudotumor development. No pseudotumor development was found in low-risk patients. Interobserver reliability scored best with the Matthies system, but all three grading systems showed only a moderate agreement.
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Clinical and radiographic outcomes of the Birmingham Hip Resurfacing arthroplasty at a minimum follow-up of 10 years: results from an independent centre. Hip Int 2017; 27:134-139. [PMID: 28362050 DOI: 10.5301/hipint.5000424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/20/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Metal-on-metal hip resurfacing (MoMHR) has been proposed as an effective surgical treatment for young and active patients with symptomatic hip disease. Recently, good clinical and radiographic outcomes have been reported by the designer surgeons at a 15.3 years follow-up; however, results at long follow-up by non-designer surgeons are less satisfactory. The aim of the study was to investigate if MoMHR can produce satisfactory clinical and radiographic results and if survival rate can be high even if the procedure is performed by non-designer surgeons. METHODS All patients were assessed about implant survival. All patients completed an Oxford Hip Score (OHS), Harris Hip Score (HHS) and a University of California Los Angeles (UCLA) activity score preoperatively, at 1 year and at last available follow-up; at this time, a standard anteroposterior weight-bearing radiograph was performed. RESULTS The survival rate with revision for any reason is 96%, similar to those obtained by designer surgeons. All the clinical scores improved over time: according to the OHS the survivors are asymptomatic and according to the UCLA maintain a high level of function. 6 remodellings of the femoral neck and 2 heterotopic bone formations were seen, but they were asymptomatic. CONCLUSIONS As designer surgeons have already shown, MoMHR can provide in active patients a durable treatment for hip arthritis, with low risk of revision and good results at 10 years follow-up, even if the procedure is performed by non-designer surgeons.
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Donahue GS, Lindgren V, Galea VP, Madanat R, Muratoglu O, Malchau H. Are Females at Greater Risk for Revision Surgery After Hip Resurfacing Arthroplasty With the Articular Surface Replacement Prosthesis? Clin Orthop Relat Res 2016; 474:2257-65. [PMID: 27121872 PMCID: PMC5014806 DOI: 10.1007/s11999-016-4860-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/20/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND Female patients undergoing hip resurfacing arthroplasties may be at greater risk of revision surgery than males, but it is unclear whether this is related to sex or other factors. We focused our analysis on data from a prospective multicenter cohort study monitoring the ASR(TM) hip resurfacing arthroplasty prosthesis on the potential association of sex on patient-reported outcome measures (PROMs), metal ion levels, revision surgery, and presence of adverse local tissue reaction. As thousands of patients with the ASR(TM) prosthesis are still undergoing followup it is critical to optimize the protocol for monitoring these patients. QUESTIONS/PURPOSES We wished (1) to assess the associations between sex and implant survival, and adverse local tissue reaction; and (2) to report the differences between sexes in metal ion levels and patient-reported outcome measures. METHODS One thousand two hundred fifty-two patients (1390 hips) who underwent hip resurfacing arthroplasty with implantation of the ASR(TM) prosthesis from April 2003 to July 2010 were eligible for enrollment in a multicenter followup study of the ASR(TM) Hip Resurfacing System after the voluntary recall of this device was initiated by DePuy in 2010. Nine hundred seventy patients (1098 hips) were enrolled at a mean of 7 years after surgery, with a mean followup of 2 years (range, 1-3.5 years). Nine hundred fifty-eight patients (1084 hips) met the inclusion criteria: ability to provide informed consent, complete PROMs, and continued routine followup. A subset of patients (150 patients, 171 hips), who all were from one center, with annual metal artifact reduction sequence MRI were analyzed. Ninety-three percent of patients from this center had routine MRI performed. The EuroQoL (EQ-5D), Harris hip score (HHS), University of California Los Angeles (UCLA) activity score, VAS pain, radiographs, patient and surgery details, and blood cobalt and chromium levels were obtained. Cox regression analysis was conducted to identify factors associated with implant survival, using any revision as the end point, and presence of adverse local tissue reaction. RESULTS In patients who had unilateral surgery, the only variable found to be associated with revision surgery was HHS (hazard ratio [HR], 0.96; 95% CI, 0.94-0.97; p < 0.001). In patients who had bilateral surgery, only HHS (HR, 0.93; 95% CI, 0.90-0.97; p < 0.001) and cobalt level (HR, 1.02; 95% CI, 1.01-1.03; p < 0.001) were associated with risk for revision. In patients with metal artifact reduction sequence MRI, the only variable found to be associated with presence of adverse local tissue reaction was cobalt level (HR, 1.06; 95% CI, 1.02-1.10; p = 0.001). Cobalt and chromium concentrations were greater in female patients than in male patients (cobalt, median 1.89 versus median 1.12 parts per billion [ppb], p < 0.001; chromium, median 2.03 versus median 1.17 ppb, p < 0.001). Slight differences were observed between males and females in HHS (males median 96 versus females median 94, p < 0.001) and UCLA scores (median 8 versus median 6, p < 0.001); however, there was no difference between sexes for VAS pain (median 0.5 versus median 0.5, p = 0.405). Differences were identified between males and females in the distribution of EQ-5D scores, yet the medians were the same (median 1.0 versus median 1.0, p < 0.001). CONCLUSIONS Male and female patients who had hip resurfacing arthroplasty with implantation of the ASR(TM) prosthesis should be followed with equal vigilance as both are at similar risk of revision surgery and adverse local tissue reaction. Metal ion levels and HHS should be obtained at followup to monitor for risk of revision and as a screening tool for MRI. Further research is necessary to evaluate if these relationships persist in patients with other metal-on-metal prostheses. LEVEL OF EVIDENCE Level II, therapeutic study.
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Affiliation(s)
- Gabrielle S. Donahue
- grid.32224.350000000403869924Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston, MA USA
| | - Viktor Lindgren
- grid.32224.350000000403869924Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston, MA USA ,grid.4714.60000000419370626Department of Molecular Medicine and Surgery, Section of Orthopaedics, Karolinska Institute, Stockholm, Sweden
| | - Vincent P. Galea
- grid.32224.350000000403869924Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston, MA USA
| | - Rami Madanat
- grid.32224.350000000403869924Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston, MA USA
| | - Orhun Muratoglu
- grid.32224.350000000403869924Massachusetts General Hospital, 55 Fruit Street, GRJ 1231, Boston, MA 02114 USA
| | - Henrik Malchau
- grid.32224.350000000403869924Massachusetts General Hospital, 55 Fruit Street, GRJ 1231, Boston, MA 02114 USA
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Renner L, Faschingbauer M, Schmidt-Braekling T, Boettner F. Cobalt serum levels differ in well functioning Birmingham resurfacing and Birmingham modular THA. Arch Orthop Trauma Surg 2016; 136:715-21. [PMID: 26983720 DOI: 10.1007/s00402-016-2439-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Metal-on-metal (MoM) bearings are known to release metal ions secondary to wear and corrosion. This may cause local reactions (adverse soft tissue reactions and osteolysis) and systemic effects. Little is known about the exact pattern and the differences between large head MoM total hip replacements (THA) and resurfacings (HR). QUESTIONS (1) Is there a difference in metal ion concentrations between HR and MoM-THR using the same bearing design (Birmingham Hip Resurfacing System, Smith & Nephew, Inc. Memphis, TN, USA)? (2) Are metal ion levels changing over time in MoM-THA or HR? (3) Do acetabular inclination angle and femoral component size influence cobalt and chromium levels? Is there a correlation between clinical outcome and metal ion levels? MATERIALS AND METHODS A retrospective analysis was conducted in 77 well functioning unilateral Birmingham HR and 42 well functioning unilateral modular Birmingham MoM-THA (Smith & Nephew, Inc. Memphis, TN, USA) operated on between 2007 and 2012. Blood samples were taken at a minimum of 13 months and subsequent during annual follow-ups. RESULTS (1) Cobalt levels were significantly higher in MoM-THA compared to HR (p < 0.001). There was no significant difference in chromium levels (p = 0.313). (2) Cobalt is increasing over time in MoM-THA (p = 0.030) whereas metal ions remain stable in HR. (3) Metal ion levels were not affected by acetabular inclination angle and femoral component size in MoM-THA. Chromium levels correlate with the femoral component size (r = -0.240; p = 0.037), the UCLA activity score (r = -0.344; p = 0.003) and the VAS (r = 0.263; p = 0.38) in HR. CONCLUSION Considering that HR and MoM-THA used the same MoM bearing design, increased cobalt levels may be related to trunnion wear or corrosion. Elevated cobalt levels should raise concern for corrosion related failure in MoM-THA.
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Affiliation(s)
- Lisa Renner
- Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
- Department of Orthopedic Surgery, Center for Musculoskeletal Surgery, Charite Universitaetsmedizin, Chariteplatz 1, 10117, Berlin, Germany
| | - Martin Faschingbauer
- Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
- Department of Orthopedics and Orthopedic Surgery, University of Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany
| | - Tom Schmidt-Braekling
- Department of Orthopedic Surgery, University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Friedrich Boettner
- Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
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Hutt J, Lavigne M, Lungu E, Belzile E, Morin F, Vendittoli PA. Comparison of Whole-Blood Metal Ion Levels Among Four Types of Large-Head, Metal-on-Metal Total Hip Arthroplasty Implants: A Concise Follow-up, at Five Years, of a Previous Report. J Bone Joint Surg Am 2016; 98:257-66. [PMID: 26888673 DOI: 10.2106/jbjs.o.00201] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Few studies of total hip arthroplasty (THA) implants with a large-diameter femoral head and metal-on-metal design have directly compared the progression of metal ion levels over time and the relationship to complications. As we previously reported, 144 patients received one of four types of large-diameter-head, metal-on-metal THA designs (Durom, Birmingham, ASR XL, or Magnum implants). Cobalt, chromium, and titanium ion levels were measured over five years. We compared ion levels and clinical results over time. The Durom group showed the highest levels of cobalt (p ≤ 0.002) and titanium ions (p ≤ 0.03). Both the Durom and Birmingham groups demonstrated significant ongoing cobalt increases up to five years. Eight patients (seven with a Durom implant and one with a Birmingham implant) developed adverse local tissue reaction. Six Durom implants and one Birmingham implant required revision, with one pseudotumor under surveillance at the time of the most recent follow-up. We found that ion generation and related complications varied among designs. More concerning was that, for some designs, ion levels continued to increase. Coupling a cobalt-chromium adapter sleeve to an unmodified titanium femoral trunnion along with a large metal-on-metal bearing may explain the poor performances of two of the designs in the current study.
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Affiliation(s)
- Jonathan Hutt
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Martin Lavigne
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada
| | - Eugen Lungu
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada
| | - Etienne Belzile
- Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - François Morin
- Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Pascal-André Vendittoli
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada
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Trace metal determination as it relates to metallosis of orthopaedic implants: Evolution and current status. Clin Biochem 2016; 49:617-35. [PMID: 26794632 DOI: 10.1016/j.clinbiochem.2016.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/01/2016] [Accepted: 01/02/2016] [Indexed: 01/22/2023]
Abstract
In utilising metal surfaces that are in constant contact with each other, metal-on-metal (MoM) surgical implants present a unique challenge, in the sense that their necessity is accompanied by the potential risk of wear particle generation, metal ion release and subsequent patient toxicity. This is especially true of orthopaedic devices that are faulty and subject to failure, where the metal surfaces undergo atypical degradation and release even more unwanted byproducts, as was highlighted by the recent recall of orthopaedic surgical implants. The aim of this review is to examine the area of metallosis arising from the wear of MoM articulations in orthopaedic devices, including how the surgical procedures and detection methods have advanced to meet growing performance and analytical needs, respectively.
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Intermediate-term trends in serum levels of metal ions after hip resurfacing arthroplasty. J Orthop Surg Res 2015; 10:188. [PMID: 26698115 PMCID: PMC4690317 DOI: 10.1186/s13018-015-0335-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 12/09/2015] [Indexed: 12/02/2022] Open
Abstract
Background The potential risks associated with hip resurfacing arthroplasty (HRA) are controversial and underestimated. The aim of this study was to explore intermediate-term trends for the levels of cobalt (Co), chromium (Cr), and molybdenum (Mo) ions after HRA. Methods Forty patients who underwent HRA from October 2005 to December 2010 were recruited to this study. The serum levels of metal ions were examined preoperatively and 3, 12, 24, and 60 months after surgery. Trends and differences in levels of metal ions with respect to sex, operated side, and body mass index (BMI) were analyzed. Results There were no significant differences in levels of Cr, Co, and Mo at each time point with respect to sex, operated side, and BMI (p > 0.05). The postoperative levels of Cr, Co, and Mo ions were significantly higher than the preoperative levels across sex, operated side, and BMI groups. Postoperative levels of Cr, Co, and Mo peaked at 12, 24, and 60 months, respectively. Cr levels peaked earlier (at 12 months) in the overweight (BMI ≥25 kg/m2) group compared to the normal-weight group (BMI <25 kg/m2), Co levels (at 12 months) peaked in women compared to men, and Mo levels (at 3 months) peaked in the bilateral HRA group compared to the unilateral HRA group. Conclusions Serum levels of Cr, Co, and Mo increased significantly after HRA. Cr levels peaked earlier in the overweight patients, Co levels peaked in women, and Mo levels peaked in patients who underwent bilateral HRA. However, there were no significant differences with respect to sex, operated side, and BMI.
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Cadossi M, Tedesco G, Sambri A, Mazzotti A, Giannini S. Hip Resurfacing Implants. Orthopedics 2015; 38:504-9. [PMID: 26270748 DOI: 10.3928/01477447-20150804-07] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 08/04/2014] [Indexed: 02/03/2023]
Abstract
EDUCATIONAL OBJECTIVES As a result of reading this article, physicians should be able to: 1. Describe the advantages of hip resurfacing. 2. Describe the disadvantages of hip resurfacing. 3. Identify the population in which hip resurfacing is most often indicated. 4. Demonstrate how to properly postoperatively manage patients with metal-on-metal prostheses. Hip resurfacing offers a suitable solution for young patients affected by hip disease who have high function demands and good bone quality. Bone stock preservation, restoration of the normal proximal femur anatomy, the lack of stress shielding, and the possibility of resuming sporting activity are proven advantages of hip resurfacing. However, there are some disadvantages, such as fracture of the femoral neck, onset of neck narrowing, and possible complications due to the metal-on-metal bearings, including pseudotumors, peri-implant osteolysis, and chronic elevation of metal ions in serum levels. Recent data suggest that the ideal candidate for hip resurfacing is an active male, younger than 65 years, with primary or posttraumatic osteoarthritis, and with a femoral head diameter larger than 50 to 54 mm. Based on these selection criteria, the literature reports implant survival to be similar to that of total hip arthroplasty. The current authors' experience confirms a low failure rate and excellent functional outcomes, with metal ion serum levels becoming stable over time in well-functioning implants. Proper surgical technique, correct patient selection, and the right choice of a well-established prosthetic model are essential elements for the long-term success of these implants.
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Nam D, Nunley RM, Ruh EL, Engh CA, Rogerson JS, Brooks PJ, Raterman SJ, Su EP, Barrack RL. Short-term Results of Birmingham Hip Resurfacing in the United States. Orthopedics 2015; 38:e715-21. [PMID: 26270759 DOI: 10.3928/01477447-20150804-60] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 11/04/2014] [Indexed: 02/03/2023]
Abstract
Previous data on the survivorship of the Birmingham Hip Resurfacing (BHR) implant have come from design surgeons and large national databases outside of the United States, and there is a lack of reported outcomes of surface replacement arthroplasty from US centers. A retrospective study was undertaken of 1271 hips treated with a BHR system (Smith & Nephew, Memphis, Tennessee) between June 2006 and September 2008 at 6 high-volume total joint centers in the United States. Demographic features, Harris Hip Score (HHS), and radiographic findings were recorded. Patients who did not have a 2-year follow-up visit were contacted by telephone. All patients were asked about complications, reoperations, or failure of the implants. Of the treated hips, 1144 (90%) had a minimum of 2 years of clinical follow-up (mean, 2.9 years; range, 1.8-4.2 years). Mean age was 52.3 years, and 75% of patients were men. Mean HHS improved from 55.8 preoperatively to 97.4 at the most recent follow-up (P<.001). There were 16 (1.4%) revisions to total hip arthroplasty (THA) for fracture (7), early dislocation (3), acetabular component malpositioning with pain (3; 1 with metallosis), infection (1), femoral loosening (1), and pseudotumor (1). There were 9 additional complications (0.8%) that did not require revision, including 3 dislocations treated with closed reduction, 2 fractures, 3 nerve injuries, and 1 pseudotumor. At 2 to 4 years of follow-up, the revision rate and the major complication rate with the BHR system were similar to those in previous reports of primary THA. Excellent clinical results were observed, but further follow-up is necessary to assess mid- and long-term results with the BHR system in US patients.
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In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions Derived from Metal-on-Metal Hip Implants. LUBRICANTS 2015. [DOI: 10.3390/lubricants3030539] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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What are the predictors and prevalence of pseudotumor and elevated metal ions after large-diameter metal-on-metal THA? Clin Orthop Relat Res 2015; 473:477-84. [PMID: 25085361 PMCID: PMC4294930 DOI: 10.1007/s11999-014-3824-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Soft tissue masses, or "pseudotumors," around metal-on-metal total hip arthroplasty (MoM THA) have been reported frequently; however, their prevalence remains unknown. Several risk factors, including elevated metal ion levels, have been associated with the presence of pseudotumor, although this remains controversial. QUESTIONS/PURPOSES The goals of this study were to (1) determine the prevalence of pseudotumors after large-diameter head MoM THA; (2) identify risk factors associated with pseudotumor formation and elevated metal ion levels; and (3) determine the early failure rate of large-diameter MoM THA. METHODS Between December 2005 and November 2012, 258 hips (215 patients) underwent large-diameter head primary MoM THA at our institution. Clinical followup was obtained in 235 hips (91%). Using an inclusion criteria of a minimum followup of 1 year, a subset of 191 hips (mean followup, 4 years; range, 1-7 years) was recruited for high-resolution ultrasound screening for the presence of pseudotumor. Whole blood cobalt and chromium ion levels, UCLA activity level, WOMAC score, patient demographics as well as surgical, implant, and radiographic data were collected. Bivariate correlations and multivariate log-linear regression models were used to compare the presence of pseudotumor and elevated metal ions with all other factors. RESULTS Ultrasound detected a solid, cystic, or mixed mass in 20% hips (38 of 191). No correlation was found between the presence of pseudotumor and any risk factor that we examined. After controlling for confounding variables, elevated cobalt ions were correlated (p<0.001, R=0.50, R2=0.25) with smaller femoral head size, the presence of bilateral MoM THA, and female sex. Elevated chromium ions were correlated (p<0.001, R=0.59, R2=0.34) with smaller femoral head size, presence of bilateral MoM THA, and lower body mass index. The overall survival of MoM THA was 96% at a mean followup of 4.5 years (range, 2-8 years). CONCLUSIONS With the numbers available, we found no associations between the presence of pseudotumor and the potential risk factors we analyzed, including elevated metal ion levels. Further work is needed to explain why larger femoral head sizes resulted in lower metal ion levels despite being associated with higher early failure rates in joint registry data. LEVEL OF EVIDENCE Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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How do metal ion levels change over time in hip resurfacing patients? A cohort study. ScientificWorldJournal 2014; 2014:291925. [PMID: 25580456 PMCID: PMC4279264 DOI: 10.1155/2014/291925] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 11/27/2014] [Indexed: 01/15/2023] Open
Abstract
Metal-on-metal hip resurfacing (MOM-HR) is offered as an alternative to traditional hip arthroplasty for young, active adults with advanced osteoarthritis. Nevertheless, concerns remain regarding wear and corrosion of the bearing surfaces and the resulting increase in metal ion levels. We evaluated three cohorts of patients with Birmingham hip resurfacing (BHR) at an average follow-up of 2, 5, and 9 years. We asked whether there would be differences in ion levels between the cohorts and inside the gender. Nineteen patients were prospectively analyzed. The correlation with clinical-radiographic data was also performed. Chromium, cobalt, nickel, and molybdenum concentrations were measured by atomic absorption spectrophotometry.
Chromium and cobalt levels demonstrated a tendency to decrease over time. Such tendency was present only in females. An inverse correlation between chromium, implant size, and Harris hip score was present at short term; it disappeared over time together with the decreased ion levels. The prospective analysis showed that, although metal ion levels remained fairly constant within each patient, there was a relatively large variation between subjects, so mean data in this scenario must be interpreted with caution.
The chronic high exposure should be carefully considered during implant selection, particularly in young subjects, and a stricter monitoring is mandatory.
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Matusiewicz H. Potential release of in vivo trace metals from metallic medical implants in the human body: from ions to nanoparticles--a systematic analytical review. Acta Biomater 2014; 10:2379-403. [PMID: 24565531 DOI: 10.1016/j.actbio.2014.02.027] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/04/2013] [Accepted: 02/13/2014] [Indexed: 02/06/2023]
Abstract
Metal ion release from metallic materials, e.g. metallic alloys and pure metals, implanted into the human body in dental and orthopedic surgery is becoming a major cause for concern. This review briefly provides an overview of both metallic alloys and pure metals used in implant materials in dental and orthopedic surgery. Additionally, a short section is dedicated to important biomaterials and their corrosive behavior in both real solutions and various types of media that model human biological fluids and tissues. The present review gives an overview of analytical methods, techniques and different approaches applied to the measurement of in vivo trace metals released into body fluids and tissues from patients carrying metal-on-metal prostheses and metal dental implants. Reference levels of ion concentrations in body fluids and tissues that have been determined by a host of studies are compiled, reviewed and presented in this paper. Finally, a collection of published clinical data on in vivo released trace metals from metallic medical implants is included.
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Al-Hamad M, Le Duff MJ, Takamura KM, Amstutz HC. Acetabular component thickness does not affect mid-term clinical results in hip resurfacing. Clin Orthop Relat Res 2014; 472:1528-34. [PMID: 24449332 PMCID: PMC3971251 DOI: 10.1007/s11999-014-3468-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/10/2014] [Indexed: 01/31/2023]
Abstract
BACKGROUND The benefits of using thin acetabular components for hip resurfacing have been shown in terms of bone conservation, but there currently are little data available in the literature addressing the mid-term clinical results of these devices. QUESTIONS/PURPOSES We aimed to determine whether thinner acetabular components altered mid-term postoperative clinical scores, complication rates, survivorship, radiographic appearance, and metal ion levels. METHODS Two hundred eighty-one patients with unilateral disease received a 5-mm thick acetabular shell and 223 received a 3.5-mm shell. The femoral component implanted in both groups was identical. We compared clinical scores, complication rates, survivorship, radiographic results, and ion levels between these two groups. RESULTS UCLA hip scores were similar (pain, p = 0.0976; walking, p = 0.9571; function, p = 0.9316; activity, p = 0.2085). Complications were higher in the 5-mm group (6.4% versus 1.8%, p = 0.0431). Both groups were similar regarding survivorship (p = 0.3181), cup radiolucency at 5 years (p = 0.107), and metal ion levels (cobalt p = 0.404, chromium p = 0.250). CONCLUSIONS With comparable mid-term clinical results, there is no tangible reason to abstain from using the 3.5-mm acetabular component. LEVEL OF EVIDENCE Level III, retrospective comparative study. See the Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Mariam Al-Hamad
- Joint Replacement Institute, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Michel J. Le Duff
- Joint Replacement Institute, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Karren M. Takamura
- David Geffen School of Medicine at the University of California at Los Angeles, Los Angeles, CA USA
| | - Harlan C. Amstutz
- Joint Replacement Institute, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
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Chen Z, Wang Z, Wang Q, Cui W, Liu F, Fan W. Changes in early serum metal ion levels and impact on liver, kidney, and immune markers following metal-on-metal total hip arthroplasty. J Arthroplasty 2014; 29:612-6. [PMID: 23993737 DOI: 10.1016/j.arth.2013.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 07/22/2013] [Accepted: 07/24/2013] [Indexed: 02/01/2023] Open
Abstract
We retrospectively studied 32 consecutive patients (32 hips) who underwent THA with a Durom large-head, MOM articulation between January 2008 and December 2010. Of the patients who underwent THA using a Trilogy metal on polyethylene prosthesis during the same period, 32 were chosen to form the Trilogy group. 32 volunteers were chosen to form the control group. At the last follow-up, serum metal ion levels, liver and kidney function and host immunologic immune responses were evaluated. The mean Co and Cr levels in the Durom group were 4.33- and 1.95-fold higher than those in the Trilogy group. CD3+, CD4+ and CD8+ cell levels in the Durom group were significantly decreased. The INF-γ level in the Durom group was significantly higher than that in the Trilogy and control groups.
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Affiliation(s)
- Zhefeng Chen
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Zhen Wang
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Qing Wang
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Weiding Cui
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Feng Liu
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Weimin Fan
- Department of Orthopedics, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
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Hartmann A, Hannemann F, Lützner J, Seidler A, Drexler H, Günther KP, Schmitt J. Metal ion concentrations in body fluids after implantation of hip replacements with metal-on-metal bearing--systematic review of clinical and epidemiological studies. PLoS One 2013; 8:e70359. [PMID: 23950923 PMCID: PMC3737219 DOI: 10.1371/journal.pone.0070359] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 06/16/2013] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION The use of metal-on-metal (MoM) total hip arthroplasty (THA) increased in the last decades. A release of metal products (i.e. particles, ions, metallo-organic compounds) in these implants may cause local and/or systemic adverse reactions. Metal ion concentrations in body fluids are surrogate measures of metal exposure. OBJECTIVE To systematically summarize and critically appraise published studies concerning metal ion concentrations after MoM THA. METHODS Systematic review of clinical trials (RCTs) and epidemiological studies with assessment of metal ion levels (cobalt, chromium, titanium, nickel, molybdenum) in body fluids after implantation of metalliferous hip replacements. Systematic search in PubMed and Embase in January 2012 supplemented by hand search. Standardized abstraction of pre- and postoperative metal ion concentrations stratified by type of bearing (primary explanatory factor), patient characteristics as well as study quality characteristics (secondary explanatory factors). RESULTS Overall, 104 studies (11 RCTs, 93 epidemiological studies) totaling 9.957 patients with measurement of metal ions in body fluids were identified and analyzed. Consistently, median metal ion concentrations were persistently elevated after implantation of MoM-bearings in all investigated mediums (whole blood, serum, plasma, erythrocytes, urine) irrespective of patient characteristics and study characteristics. In several studies very high serum cobalt concentrations above 50 µg/L were measured (detection limit typically 0.3 µg/L). Highest metal ion concentrations were observed after treatment with stemmed large-head MoM-implants and hip resurfacing arthroplasty. DISCUSSION Due to the risk of local and systemic accumulation of metallic products after treatment with MoM-bearing, risk and benefits should be carefully balanced preoperatively. The authors support a proposed "time out" for stemmed large-head MoM-THA and recommend a restricted indication for hip resurfacing arthroplasty. Patients with implanted MoM-bearing should receive regular and standardized monitoring of metal ion concentrations. Further research is indicated especially with regard to potential systemic reactions due to accumulation of metal products.
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Affiliation(s)
- Albrecht Hartmann
- University Hospital Carl Gustav Carus Dresden, University Centre for Orthopaedics and Trauma Surgery, Dresden, Germany
| | - Franziska Hannemann
- University Hospital Carl Gustav Carus Dresden, University Centre for Orthopaedics and Trauma Surgery, Dresden, Germany
- University Hospital Carl Gustav Carus Dresden, Centre for Evidence-Based Health Care, Dresden, Germany
| | - Jörg Lützner
- University Hospital Carl Gustav Carus Dresden, University Centre for Orthopaedics and Trauma Surgery, Dresden, Germany
| | - Andreas Seidler
- Dresden University of Technology, Occupational and Social Medicine, Dresden, Germany
| | - Hans Drexler
- University Erlangen-Nuremberg, Occupational, Social and Environmental Medicine, Erlangen, Germany
| | - Klaus-Peter Günther
- University Hospital Carl Gustav Carus Dresden, University Centre for Orthopaedics and Trauma Surgery, Dresden, Germany
| | - Jochen Schmitt
- University Hospital Carl Gustav Carus Dresden, Centre for Evidence-Based Health Care, Dresden, Germany
- Dresden University of Technology, Occupational and Social Medicine, Dresden, Germany
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Johnson AJ, Le Duff MJ, Yoon JP, Al-Hamad M, Amstutz HC. Metal ion levels in total hip arthroplasty versus hip resurfacing. J Arthroplasty 2013; 28:1235-7. [PMID: 23618754 DOI: 10.1016/j.arth.2013.03.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 03/04/2013] [Accepted: 03/19/2013] [Indexed: 02/01/2023] Open
Abstract
Recent studies suggest that the tapered interface between stem and femoral head may be a substantial source of cobalt and chromium ion release after metal-on-metal (MOM) total hip arthroplasty (THA). This study compared patient ion levels after MOM hip resurfacing (HR) and MOM THA performed with identical acetabular components. 110 HRs were compared with 22 THAs. All had well-oriented components, unilateral implants, and serum ion studies beyond one year post-operatively. The HR group's median cobalt value was 1.11 μg/L vs. 2.86 μg/L for the THA patients. The HR group's median chromium value was 1.49 μg/L vs. 2.94 μg/L for THA. Significantly higher THA ion levels suggest a source of ions other than the MOM bearing itself.
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Affiliation(s)
- Alicia J Johnson
- Joint Replacement Institute, St Vincent Medical Center, Los Angeles, CA, USA
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21
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Vundelinckx BJ, Verhelst LA, De Schepper J. Taper corrosion in modular hip prostheses: analysis of serum metal ions in 19 patients. J Arthroplasty 2013; 28:1218-23. [PMID: 23523216 DOI: 10.1016/j.arth.2013.01.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Revised: 12/23/2012] [Accepted: 01/13/2013] [Indexed: 02/01/2023] Open
Abstract
Recently, concerns have been raised about the use of metal-on-metal (MoM) implants. This has led to the recall of several resurfacing and large-diameter total hip arthroplasties (THA). Any MoM interface can be the cause of metal debris and adverse tissue reactions. We analyzed serum metal ions and HOOS scores in 19 of 306 patients treated with a THA with modular neck section. The only MoM interface in this particular implant is the taper between the neck and the stem. The articulating surface consists of a ceramic-on-polyethylene or ceramic-on-ceramic interface. As such, this study looks at the metal ion production from the modular neck section. One of 306 implants needed revision at 52-month follow-up because of an adverse reaction to metal debris (ARMD).
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Affiliation(s)
- Bart J Vundelinckx
- Orthopaedic Surgery and Traumatology, Catholic University of Leuven, Belgium
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Jantzen C, Jørgensen HL, Duus BR, Sporring SL, Lauritzen JB. Chromium and cobalt ion concentrations in blood and serum following various types of metal-on-metal hip arthroplasties: a literature overview. Acta Orthop 2013; 84:229-36. [PMID: 23594249 PMCID: PMC3715816 DOI: 10.3109/17453674.2013.792034] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND AND PURPOSE Widely different metal ion concentrations in blood and serum have been reported with metal-on-metal (MoM) implants. We reviewed the literature on blood and serum ion concentrations of chromium (Cr) and cobalt (Co) following various MoM hip arthroplasties. METHODS Studies were searched for in the Medline database, Embase, and the Cochrane Database of Systematic Reviews. Highest mean or median ion concentrations of Cr and Co after a minimum of 1 year of follow-up were extracted and grouped according to sample- and articulation type, and average values were calculated. RESULTS 43 studies were included and 16 different MoM implants were identified. For the different types of bearings, average ion concentrations and range were calculated from the mean or median ion concentration. The average Cr concentration ranged between 0.5 and 2.5 μg/L in blood and between 0.8 and 5.1 μg/L in serum. For Co, the range was 0.7-3.4 μg/L in blood and 0.3-7.5 μg/L in serum. INTERPRETATION When the average blood ion concentrations calculated for the different implants, together with the concentrations measured in the individual studies, were compared with the upper acceptable limit for Cr and Co in blood, no clear pattern was recognized. Furthermore, we were unable to detect any clear difference in ion concentrations between different types of implants (THA and resurfacing).
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Affiliation(s)
| | - Henrik L Jørgensen
- Clinical Biochemistry, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
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Yoon JP, Le Duff MJ, Johnson AJ, Takamura KM, Ebramzadeh E, Amstutz HC. Contact patch to rim distance predicts metal ion levels in hip resurfacing. Clin Orthop Relat Res 2013. [PMID: 23184671 PMCID: PMC3613526 DOI: 10.1007/s11999-012-2711-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Component design, size, acetabular orientation, patient gender, and activity level have been suggested as factors leading to elevated metal ion concentrations after-on-metal hip resurfacing arthroplasty (MMHRA). The calculation of the contact patch to rim (CPR) distance integrates component size, design, and acetabular orientation and may be a good predictor of elevated metal ion levels. QUESTIONS/PURPOSES We evaluated the effects and the predictive value of the CPR distance on serum cobalt (CoS) and chromium (CrS) ion levels. METHODS We retrospectively studied 182 patients with Conserve Plus MMHRAs at a minimum of 12 months after surgery (median, 57 months; range, 12-165 months). CoS and CrS levels were analyzed using inductively-coupled plasma mass spectrometry. Multiple logistic regression was performed to determine which if any of the factors related to serum ion levels. RESULTS Patients with CPR distances of 10 mm or less had a 37-fold increased risk of having elevated CoS of 7 μg/L or higher. Similarly, these patients had an 11-fold increased risk of having elevated CrS of 7 μg/L or higher. Sex and University of California Los Angeles activity scores did not influence the postoperative CoS and CrS levels. The negative predictive value for CPR distance less than 10 mm was 99.3% for CoS greater than 7 μg/L and 98.0% for CrS greater than 7 μg/L. CONCLUSIONS Our observations suggest the CPR distance would be a useful indicator to determine which patients are at risk for elevated ion levels. Patients with CPR distances greater than 10 mm need not be monitored unless they become symptomatic.
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Affiliation(s)
- James P. Yoon
- Joint Replacement Institute at St. Vincent Medical Center, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Michel J. Le Duff
- Joint Replacement Institute at St. Vincent Medical Center, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Alicia J. Johnson
- Joint Replacement Institute at St. Vincent Medical Center, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Karren M. Takamura
- Joint Replacement Institute at St. Vincent Medical Center, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
| | - Edward Ebramzadeh
- J. Vernon Luck Sr. MD, Orthopaedic Research Center, Orthopaedic Hospital at UCLA, Los Angeles, CA USA
| | - Harlan C. Amstutz
- Joint Replacement Institute at St. Vincent Medical Center, 2200 West Third Street, Suite 400, Los Angeles, CA 90057 USA
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Verhelst LA, Van der Bracht H, Vanhegan IS, Van Backlé B, De Schepper J. Revising the well-fixed, painful resurfacing using a double-mobility head: a new strategy to address metal-on-metal complications. J Arthroplasty 2012; 27:1857-62. [PMID: 22770851 DOI: 10.1016/j.arth.2012.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 05/06/2012] [Indexed: 02/01/2023] Open
Abstract
Isolated revision of the femoral component of hip resurfacings to metal-on-metal (MoM) total hip arthroplasties has shown inferior results. We present a case series of well-fixed, painful MoM hips with elevated chromium and cobalt levels. An isolated femoral revision using a noncemented femoral component and a double-mobility head was performed. Patients were followed up for 6 months and showed excellent improvements in visual analog score and Hip dysfunction and Osteoarthritis Outcome Score (HOOS). Cobalt and chromium levels dropped at 6 weeks and were normal at 6 months. Although our follow-up is short, we feel that it is important to highlight this as a potential treatment strategy. This revision is less aggressive than traditional methods, eliminates the concerns from MoM bearings, and results in a stable construct.
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Affiliation(s)
- Luk A Verhelst
- AZ Groeninge Kortrijk, Burgemeester Vercruysselaan 5, 8500 Kortrijk, Belgium
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Fritzsche J, Borisch C, Schaefer C. Case report: High chromium and cobalt levels in a pregnant patient with bilateral metal-on-metal hip arthroplasties. Clin Orthop Relat Res 2012; 470:2325-31. [PMID: 22692823 PMCID: PMC3392404 DOI: 10.1007/s11999-012-2398-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 05/10/2012] [Indexed: 01/31/2023]
Abstract
BACKGROUND Metal-on-metal bearings frequently are used in young patients leading to the concern that disseminated metals such as chromium (Cr) and cobalt (Co) as the main constituents could affect pregnancies. CASE DESCRIPTION We describe a 41-year-old patient with bilateral metal-on-metal hip arthroplasties, a recurrent pseudotumor, and extremely high blood levels (Cr 39 μg/L, Co 138 μg/L) at 12 gestational weeks. At different gestational weeks, maternal blood, aspirate of the pseudotumor, and amniotic fluid were analyzed for Cr and Co. Therapy with chelating agents was not recommended because the mother showed no symptoms of toxicity and the safety of chelating therapy during pregnancy is not established. At 38 weeks of gestation, a healthy male infant was delivered with elevated Cr and Co cord blood levels. At the age of 8 weeks, the infant's Cr was comparable to the cord blood level, whereas the Co decreased considerably without treatment. At the age of 14 weeks, the infant's development was seemingly uneventful and no signs of toxicity were obvious. LITERATURE REVIEW Carcinogenic, mutagenic, and teratogenic potentials of these metals have been suggested. However, we found no published clinical observations in context with pregnancies of women with hip arthroplasties using metal-on-metal implants. To our knowledge, this is the first report of such high levels of Cr and Co in a human pregnancy. PURPOSES AND CLINICAL RELEVANCE Although we cannot generalize from one case, the seemingly uneventful outcome of this pregnancy may reassure colleagues when counseling patients with high ion levels whether to carry a pregnancy to term.
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Affiliation(s)
- Juliane Fritzsche
- Pharmakovigilanz- und Beratungszentrum für Embryonaltoxikologie (Institute for Clinical Teratology and Drug Risk Assessment in Pregnancy), Institut für Klinische Pharmakologie und Toxikologie, Charité Universitätsmedizin Berlin, Spandauer Damm 130, Haus 10, D-14050 Berlin, Germany
| | - Cornelia Borisch
- Pharmakovigilanz- und Beratungszentrum für Embryonaltoxikologie (Institute for Clinical Teratology and Drug Risk Assessment in Pregnancy), Institut für Klinische Pharmakologie und Toxikologie, Charité Universitätsmedizin Berlin, Spandauer Damm 130, Haus 10, D-14050 Berlin, Germany
| | - Christof Schaefer
- Pharmakovigilanz- und Beratungszentrum für Embryonaltoxikologie (Institute for Clinical Teratology and Drug Risk Assessment in Pregnancy), Institut für Klinische Pharmakologie und Toxikologie, Charité Universitätsmedizin Berlin, Spandauer Damm 130, Haus 10, D-14050 Berlin, Germany
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Chinese experience with metal-on-metal hip resurfacing. J Arthroplasty 2012; 27:968-75. [PMID: 22333868 DOI: 10.1016/j.arth.2011.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 11/21/2011] [Indexed: 02/01/2023] Open
Abstract
The aim of this study was to study the actual clinical and laboratory results of metal-on-metal resurfacing hip arthroplasties by comparing with other implants. A total of 127 cases were operated on at the Department of Orthopaedics of Wuhan Union Hospital from 2005 to 2011. An important cause of failure is the fracture of the femoral neck. The chromium and cobalt levels of resurfacing hip arthroplasty and large-diameter head total hip arthroplasty (THA) are higher than those of a conventional metal-on-polyethylene total hip arthroplasty. There was a high ion level associated with an abduction angle of more than 45° and repetitive extreme hip motion in the 3 revision cases. The findings of this study are novel and quite controversial with that of the previously published literature.
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Hasegawa M, Yoshida K, Wakabayashi H, Sudo A. Cobalt and chromium ion release after large-diameter metal-on-metal total hip arthroplasty. J Arthroplasty 2012; 27:990-6. [PMID: 22325959 DOI: 10.1016/j.arth.2011.12.016] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 12/12/2011] [Indexed: 02/01/2023] Open
Abstract
Seventy-five patients underwent unilateral metal-on-metal total hip arthroplasty using a large-diameter head. Serum levels of cobalt and chromium were determined. Significant increases in both cobalt and chromium were observed at 3 months (cobalt, 1.4 μg/L; chromium, 1.4 μg/L) compared with preoperative values (P < .001). At 1 year, the median cobalt and chromium levels were 2.3 and 2.1 μg/L, respectively, and the levels had increased significantly compared with 3 months (P < .001). There were no significant differences between levels of either metal at 1 or 2 years (cobalt, 2.3 μg/L; chromium, 1.6 μg/L). Pseudotumor occurred in 2 hips. Patients with large-diameter metal-on-metal total hip arthroplasty had higher circulating metal ion levels at 3 months and 1 year, with no additional significant increases at 2 years.
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Affiliation(s)
- Masahiro Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu City, Mie, Japan
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Maurer-Ertl W, Friesenbichler J, Sadoghi P, Pechmann M, Trennheuser M, Leithner A. Metal ion levels in large-diameter total hip and resurfacing hip arthroplasty--preliminary results of a prospective five year study after two years of follow-up. BMC Musculoskelet Disord 2012; 13:56. [PMID: 22494794 PMCID: PMC3490776 DOI: 10.1186/1471-2474-13-56] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 03/27/2012] [Indexed: 01/15/2023] Open
Abstract
Background Metal-on-metal hip resurfacing is an alternative to metal-on-metal total hip arthroplasty, especially for young and physically active patients. However, wear which might be detected by increased serum ion levels is a matter of concern. Methods The aims of this preliminary study were to determine the raise of metal ion levels at 2-years follow-up in a prospective setting and to evaluate differences between patients with either resurfacing or total hip arthroplasty. Furthermore we investigated if the inclination of the acetabular component and the arc of cover would influence these findings. Therefore, 36 patients were followed prospectively. Results The results showed increments for Co and Cr in both implant groups. Patients treated with large-diameter total hip arthroplasty showed fourfold and threefold, respectively, higher levels for Co and Cr compared to the resurfacing group (Co: p < 0,001 and Cr: p = 0,005). Nevertheless, we observed no significant correlation between serum ion levels, inclination and arc of cover. Discussion In order to clarify the biologic effects of ion dissemination and to identify risks concerning long-term toxicity of metals, the exposure should be monitored carefully. Therefore, long-term studies have to be done to determine adverse effects of Co and Cr following metal-on-metal hip replacement.
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Affiliation(s)
- W Maurer-Ertl
- Department of Orthopaedic Surgery, Medical University of Graz, Graz, Austria
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Qu X, Huang X, Dai K. Metal-on-metal or metal-on-polyethylene for total hip arthroplasty: a meta-analysis of prospective randomized studies. Arch Orthop Trauma Surg 2011; 131:1573-83. [PMID: 21643799 DOI: 10.1007/s00402-011-1325-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Indexed: 11/29/2022]
Abstract
BACKGROUND There has been recent concern regarding the increased use of metal-on-metal total hip arthroplasty (MOM-THA) as an alternative to contemporary metal-on-polyethylene total hip arthroplasty (MOP-THA), and the choice remains controversial. We performed a meta-analysis to evaluate and compare metal ion concentrations, complications, reoperation rates, clinical outcomes and radiographic outcomes of MOM-THA and MOP-THA. METHODS We performed a systematic review of English and non-English articles identified from MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, PreMEDLINE and HealthSTAR. Metal ion concentrations, complications, reoperation rates and other outcomes of MOM bearings were compared with MOP bearings in THA based on relative risks, mean differences and standardized mean difference statistics. RESULTS Eight prospective randomized trials were identified from 1,075 citations. Our results demonstrated significantly elevated erythrocyte, serum and urine levels of metal ions (cobalt and chromium) among patients who received MOM-THA. No significant differences in titanium concentrations or total complication or reoperation rates were found between MOM-THA and MOP-THA. Clinical function scores and radiographic evaluations were similar between the two groups. CONCLUSIONS This analysis found insufficient evidence to identify any clinical advantage of MOM-THA compared with MOP-THA. Although cobalt and chromium concentrations were elevated after MOM-THA, there were no significant differences in total complication rates (including all-case mortality) between the two groups in the short- to mid-term follow-up period. The MOM bearing option for THA should be used with caution.
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Affiliation(s)
- Xinhua Qu
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
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Smolders JMH, Hol A, Rijnberg WJ, van Susante JLC. Metal ion levels and functional results after either resurfacing hip arthroplasty or conventional metal-on-metal hip arthroplasty. Acta Orthop 2011; 82:559-66. [PMID: 22103280 PMCID: PMC3242952 DOI: 10.3109/17453674.2011.625533] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Modern metal-on-metal hip resurfacing was introduced as a bone-preserving method of joint reconstruction for young and active patients; however, the large diameter of the bearing surfaces is of concern for potentially increased metal ion release. PATIENTS AND METHODS 71 patients (< 65 years old) were randomly assigned to receive either a resurfacing (R) hip arthroplasty (n = 38) or a conventional metal-on-metal (C) hip arthroplasty (n = 33). Functional outcomes were assessed preoperatively and at 6, 12, and 24 months. Cobalt and chromium blood levels were analyzed preoperatively and at 3, 6, 12, and 24 months. RESULTS All functional outcome scores improved for both groups. At 12 and 24 months, the median UCLA activity score was 8 in the R patients and 7 in the C patients (p < 0.05). At 24 months, OHS was median 16 in C patients and 13 in R patients (p < 0.05). However, in spite of randomization, UCLA scores also appeared to be higher in R patients at baseline. Satisfaction was similar in both groups at 24 months. Cobalt concentrations were statistically significantly higher for R patients only at 3 and 6 months. Chromium levels remained significantly higher for R patients until 24 months. No pseudotumors were encountered in either group. One R patient was revised for early aseptic loosening and in 2 C patients a cup insert was exchanged for recurrent dislocation. INTERPRETATION R patients scored higher on UCLA, OHS, and satisfaction at some time points; however, as for the UCLA, preoperative levels were already in favor of R. The differences, although statistically significant, were of minor clinical importance. Chromium blood levels were statistically significantly higher for R patients at all follow-up measurements, whereas for cobalt this was only observed up to 6 months. The true value of resurfacing hip arthroplasty over conventional metal-on-metal hip arthroplasty will be determined by longer follow-up and a possible shift of balance between their respective (dis)advantages.
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Affiliation(s)
- José MH Smolders
- Department of Orthopaedics, Hospital Rijnstate, Arnhem, the Netherlands
| | - Annemiek Hol
- Department of Orthopaedics, Hospital Rijnstate, Arnhem, the Netherlands
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Cenni E, Scioscia L, Baldini N. Orthopaedic research in italy: state of the art. Int J Immunopathol Pharmacol 2011; 24:157-78. [PMID: 21669157 DOI: 10.1177/03946320110241s230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The most significant results in experimental and clinical orthopaedic research in Italy within the last three years have been primarily in major congenital diseases, bone tumors, regenerative medicine, joint replacements, spine, tendons and ligaments. The data presented in the following discussion is comparable with leading international results, highlighting Italian orthopaedic research excellemce as well as its shortcomings.
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Affiliation(s)
- E Cenni
- Istituto Ortopedico Rizzoli, Bologna, Italy
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Lavigne M, Belzile EL, Roy A, Morin F, Amzica T, Vendittoli PA. Comparison of whole-blood metal ion levels in four types of metal-on-metal large-diameter femoral head total hip arthroplasty: the potential influence of the adapter sleeve. J Bone Joint Surg Am 2011; 93 Suppl 2:128-36. [PMID: 21543702 DOI: 10.2106/jbjs.j.01885] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Metal-on-metal bearings, as used in total hip arthroplasty prostheses that have a large-diameter femoral head, were proposed as an option for treating young and active patients with degenerative hip disorders. Despite the theoretical improved performance of large metal articulations with regard to wear, metal ion levels produced by total hip arthroplasty prostheses in which a large-diameter femoral head is used have not been thoroughly evaluated. METHODS From 173 eligible patients, 144 patients were allocated to undergo a unilateral total hip arthroplasty with use of metal-on-metal components and a large-diameter femoral head. The purpose of this study was to compare the amount of metal ion release (chromium, cobalt, and titanium) from four different types of prostheses from four different implant manufacturers (Biomet, DePuy, Smith & Nephew, and Zimmer). RESULTS For cobalt ion levels, a significant difference was found between the different types of total hip arthroplasty prostheses with a large-diameter femoral head at three, six, twelve, and twenty-four months, but only in male patients or patients with a femoral head size of 50 mm or greater. The highest mean cobalt levels at all follow-up periods were observed with the Zimmer implant and the lowest with the Biomet implant. Titanium ion levels were highest in the Zimmer group at all follow-up periods, whereas no difference between groups was found for chromium. At the most recent follow-up, one hip was revised after the development of an adverse local tissue reaction. Of concern was the observation at the time of revision surgery of black metallic deposits inside the adapter sleeve and on the prosthetic femoral neck. CONCLUSIONS This investigation revealed that metal ion release differs greatly between various total hip arthroplasty implants with a large-diameter femoral head. The sources of metal ion production are numerous, but it is hypothesized that wear and corrosion at the junction between the adapter sleeve and the femoral stem in some patients may be responsible for the elevated cobalt ion levels that were found in the Zimmer group. On the other hand, an adapter sleeve made of titanium, such as the one used with the Biomet large-diameter-head total hip arthroplasty, is an unlikely contributor to the release of cobalt ions. Current technology or design of some total hip arthroplasty systems that make use of a large-diameter femoral head may not yet allow the use of modular large heads with a metal-on-metal articulation, especially in young, active male patients whose activities generate high loads at the hip joint. Further research is needed to better understand the favorable design characteristics of modular junctions in metal-on-metal total hip arthroplasty implants that make use of large-diameter femoral heads.
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Affiliation(s)
- Martin Lavigne
- Division of Orthopaedic Surgery, Department of Surgery, Maisonneuve-Rosemont Hospital, 5415 Assomption Boulevard, Montreal, QC H1T 2M4, Canada.
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