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Migliorini F, Pilone M, Bell A, Merfort R, Giorgino R, Maffulli N. Serum cobalt and chromium concentration following total hip arthroplasty: a Bayesian network meta-analysis. Sci Rep 2023; 13:6918. [PMID: 37106086 PMCID: PMC10140036 DOI: 10.1038/s41598-023-34177-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/25/2023] [Indexed: 04/29/2023] Open
Abstract
The present systematic review investigated the concentration of chromium (Cr) and cobalt (Co) in serum in patients who have undergone total hip arthroplasty (THA). The first outcome of interest was to investigate the mean concentration in serum of Cr and Co using different material combinations and to verify whether their concentrations change significantly using different patterns of head and liner in THA. The second outcome of interest was to investigate whether the time elapsed from the index surgery to the follow-up, BMI, sex, and side exert an influence on the mean concentration of Cr and Co in serum in patients who have undergone THA. The following material combinations were investigated (head-liner): Ceramic-Co Cr (CoCr), CoCr-CoCr, CoCr-Polyethylene, CoCr high carbide-CoCr high carbide. Data from 2756 procedures were retrieved. The mean length of follow-up was 69.3 ± 47.7 months. The ANOVA test evidenced good comparability in age, length of follow-up, BMI, and sex (P > 0.1). In patients who have undergone THA, the mean concentration in the serum of Co ranged between 0.5 µg/L and 3.5 µg/L, and the mean concentration of Cr from 0.6 to 2.6 µg/L. The difference in the concentration of Co and Cr in serum is strictly related to the implant configuration, with the coupling CoCr-CoCr showing the highest and CoCr-Polyethylene showing the lowest concentration. Patient characteristics, BMI, sex, side and the time elapsed from the index surgery to the last follow-up did not exert a significant influence on the concentration of Co and Cr in serum in patients who have undergone total hip arthroplasty (THA).
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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, Eifelklinik St.Brigida, 52152, Simmerath, Germany.
| | - Marco Pilone
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
- Residency Program in Orthopedics and Traumatology, University of Milan, Milan, Italy
| | - Andreas Bell
- Department of Orthopaedic and Trauma Surgery, Eifelklinik St.Brigida, 52152, Simmerath, Germany
| | - Ricarda Merfort
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Riccardo Giorgino
- Residency Program in Orthopedics and Traumatology, University of Milan, Milan, Italy
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
- School of Pharmacy and Bioengineering, Faculty of Medicine, Keele University, ST4 7QB, Stoke On Trent, England
- Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Queen Mary University of London, Mile End Hospital, E1 4DG, London, England
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Pautasso A, Zorzolo I, Bellato E, Pellegrino P, Ferrario A, Pira E, Castoldi F. Allergic reaction and metal hypersensitivity after shoulder joint replacement. Musculoskelet Surg 2023; 107:55-68. [PMID: 34719773 PMCID: PMC10020248 DOI: 10.1007/s12306-021-00729-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
PURPOSE Metal ion release may cause local and systemic effects and induce hypersensitivity reactions. The aim of our study is first to determine if implant-related hypersensitivity correlates to patient symptoms or not; second, to assess the rate of hypersensitivity and allergies in shoulder arthroplasty. METHODS Forty patients with shoulder replacements performed between 2015 and 2017 were studied with minimum 2-year follow-up; no patient had prior metal implants. Each patient underwent radiographic and clinical evaluation using the Constant-Murley Score (CMS), 22 metal and cement haptens patch testing, serum and urine tests to evaluate 12 metals concentration, and a personal occupational medicine interview. RESULTS At follow-up (average 45 ± 10.7 months), the mean CMS was 76 ± 15.9; no clinical complications or radiographic signs of loosening were detected; two nickel sulfate (5%), 1 benzoyl peroxide (2.5%) and 1 potassium dichromate (2.5%) positive findings were found, but all these patients were asymptomatic. There was an increase in serum aluminum, urinary aluminum and urinary chromium levels of 1.74, 3.40 and 1.83 times the baseline, respectively. No significant difference in metal ion concentrations were found when patients were stratified according to gender, date of surgery, type of surgery, and type of implant. CONCLUSIONS Shoulder arthroplasty is a source of metal ion release and might act as a sensitizing exposure. However, patch test positivity does not seem to correlate to hypersensitivity cutaneous manifestations or poor clinical results. Laboratory data showed small constant ion release over time, regardless of gender, type of shoulder replacement and implant used. LEVELS OF EVIDENCE Level II.
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Affiliation(s)
- A. Pautasso
- University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
| | - I. Zorzolo
- University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
| | - E. Bellato
- Orthopaedic and Traumatology Department, San Luigi Gonzaga Hospital, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy
| | - P. Pellegrino
- Oncologic Orthopaedic Department, Orthopaedic and Trauma Center – Città della Salute e della Scienza, University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
| | - A. Ferrario
- Occupational Medicine Division, Department of Public Health and Pediatric Sciences, Orthopaedic and Trauma Center – Città della Salute e della Scienza, University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
| | - E. Pira
- University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
- Occupational Medicine Division, Department of Public Health and Pediatric Sciences, Orthopaedic and Trauma Center – Città della Salute e della Scienza, University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
| | - F. Castoldi
- University of Turin, Via Gianfranco Zuretti 29, 10126 Turin, Italy
- Orthopaedic and Traumatology Department, San Luigi Gonzaga Hospital, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy
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Aluminum Nanoparticles Affect Human Platelet Function In Vitro. Int J Mol Sci 2023; 24:ijms24032547. [PMID: 36768869 PMCID: PMC9916829 DOI: 10.3390/ijms24032547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/22/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
Endoprostheses are prone to tribological wear and biological processes that lead to the release of particles, including aluminum nanoparticles (Al NPs). Those particles can diffuse into circulation. However, the toxic effects of NPs on platelets have not been comprehensively analyzed. The aim of our work was to investigate the impact of Al NPs on human platelet function using a novel quartz crystal microbalance with dissipation (QCM-D) methodology. Moreover, a suite of assays, including light transmission aggregometry, flow cytometry, optical microscopy and transmission electron microscopy, were utilized. All Al NPs caused a significant increase in dissipation (D) and frequency (F), indicating platelet aggregation even at the lowest tested concentration (0.5 µg/mL), except for the largest (80 nm) Al NPs. A size-dependent effect on platelet aggregation was observed for the 5-20 nm NPs and the 30-50 nm NPs, with the larger Al NPs causing smaller increases in D and F; however, this was not observed for the 20-30 nm NPs. In conclusion, our study showed that small (5-50 nm) Al NPs caused platelet aggregation, and larger (80 nm) caused a bridging-penetrating effect in entering platelets, resulting in the formation of heterologous platelet-Al NPs structures. Therefore, physicians should consider monitoring NP serum levels and platelet activation indices in patients with orthopedic implants.
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Mizuno K, Boschetto F, Yamamoto K, Honma T, Miyamoto N, Adachi T, Kanamura N, Yamamoto T, Wenliang Z, Marin E, Pezzotti G. Cytotoxicity and osteogenic effects of aluminum ions. J Inorg Biochem 2022; 234:111884. [DOI: 10.1016/j.jinorgbio.2022.111884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 05/19/2022] [Accepted: 05/29/2022] [Indexed: 11/17/2022]
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Outcomes of Ceramic Composite in Total Hip Replacement Bearings: A Single-Center Series. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5120320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Despite the fact that total hip replacement is one of the most successful surgical procedures for treatment of a variety of end-stage hip diseases, the process of osteolysis and implant loosening remains a significant problem, especially in young and high-demand patients. More than 40 years ago, ceramic bearings were introduced due to their mechanical advantage in order to obtain a reduction in wear debris, and due to the conviction that it was possible to minimize friction and wear owing to their mechanical hardness, high chemical stability, surface lubrication by fluids and low friction coefficient. Together with excellent mechanical properties, ceramics have a biological inertness: eventual ceramic debris will lead to a reactive response with a high predominance of fibrocystic cells, rather than macrophagic cells, and absence of giant cells, which is ideal from a biological perspective. As a consequence, they will not trigger the granulomatous reaction necessary to induce periprosthetic osteolysis, and this clearly appears to be of great clinical relevance. In recent years, tribology in manufacturing ceramic components has progressed with significant improvements, owing to the development of the latest generation of ceramic composites that allow for an increased material density and reduced grain size. Currently, ceramic-on-ceramic bearings are considered the attractive counterparts of ceramic- or metal-on-polyethylene ones for patients with a long life expectancy. The aim of this paper is to report the results of total hip replacements performed with a ceramic-on-ceramic articulation made from a ceramic composite in a single center, focusing on its usefulness in specific preoperative diagnosis.
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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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Reiner T, Haubenreisser H, Tripel E, Rosshirt N, Sorbi R, Nees TA, Gotterbarm T, Merle C, Moradi B, Hagmann S. Peripheral Blood Lymphocyte Subpopulations in Patients Following Small Diameter Metal-On-Metal Total Hip Replacement at Long-Term Follow-Up. J Clin Med 2020; 9:jcm9092877. [PMID: 32899901 PMCID: PMC7564376 DOI: 10.3390/jcm9092877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 09/03/2020] [Indexed: 11/22/2022] Open
Abstract
(1) Background: The objective of the present study was to investigate peripheral blood lymphocyte subpopulations in patients with small diameter metal-on-metal total hip arthroplasty (MoM THA) and elevated blood metal ion concentrations at long-term follow-up. The hypothesis was that increased blood metal ion levels or the presence of adverse local tissue reactions (ALTR) would be associated with changes in the peripheral expression of lymphocyte subpopulations, which could potentially serve as early diagnostic markers for metal wear related complications. (2) Methods: Peripheral blood samples were analyzed for leucocyte subgroups (CD3+, CD4+, CD8+, CD14+, CD16+/CD56+, CD25+/CD127−, CD19+, IFN-γ+, IL-4+ and IL-17A+ cells) in 34 patients with elevated blood metal ion levels (combined cobalt and chromium levels >2 µg/L) following small head MoM THA at a mean follow-up of 15.6 years. Fifteen patients with small head MoM THA and blood metal ion levels within the normal range and 15 patients with conventional ceramic-on-polyethylene THA served as control groups. In addition, blood metal ion levels and leucocyte subpopulations were compared between patients with and without adverse local tissue reactions (ALTR), which was investigated by MRI in 27 patients of the study cohort. (3) Results: There was a significant decrease in the levels of IFN-γ+ Type-1 T helper cells (Th1) in patients with MoM THA compared to the ceramic-on-polyethylene control group (p < 0.001). No statistically significant differences in the cell counts of other lymphocyte subpopulations were found between the three groups. Cobalt ion levels were significantly higher in patients with ALTR (p < 0.001) compared to the non-ALTR group, but no differences in the levels of lymphocyte subsets were found between the two groups. (4) Conclusions: No adverse systemic effects with respect to peripheral blood leucocyte subpopulations could be detected in the present study in patients following THA with a small diameter MoM articulation at long-term follow-up. We found a significant decrease of IFN-γ+ Th1 cells in patients with MoM THA compared to the control group, but no differences in the peripheral expression of leucocyte subpopulations were seen between patients with and without ALTR. Future studies with larger patient cohorts and additional histopathological investigations could help to better understand the role of Th1 cells and other cell lines of the adaptive immune system in the development of metal wear related complications after total joint replacement.
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Affiliation(s)
- Tobias Reiner
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
- Correspondence: (T.R.); (S.H.); Tel.: +49-6221-5634803 (T.R.); +49-6221-5626289 (S.H.); Fax: +49-6221-5626179 (T.R.); +49-6221-5626348 (S.H.)
| | - Hester Haubenreisser
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Elena Tripel
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Nils Rosshirt
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Reza Sorbi
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Timo Albert Nees
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Tobias Gotterbarm
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, 4020 Linz, Austria;
| | - Christian Merle
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Babak Moradi
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
| | - Sébastien Hagmann
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (H.H.); (E.T.); (N.R.); (R.S.); (T.A.N.); (C.M.); (B.M.)
- Correspondence: (T.R.); (S.H.); Tel.: +49-6221-5634803 (T.R.); +49-6221-5626289 (S.H.); Fax: +49-6221-5626179 (T.R.); +49-6221-5626348 (S.H.)
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Tarpada SP, Loloi J, Schwechter EM. A Case of Titanium Pseudotumor and Systemic Toxicity After Total Hip Arthroplasty Polyethylene Failure. Arthroplast Today 2020; 6:710-715. [PMID: 32923555 PMCID: PMC7475049 DOI: 10.1016/j.artd.2020.07.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/26/2020] [Accepted: 07/21/2020] [Indexed: 12/28/2022] Open
Abstract
We describe the case of a 57-year-old female who underwent bilateral ceramic-on-polyethylene total hip arthroplasties performed in 2015. She presented to us in 2018 with headaches, fatigue, and right hip pain 5 months after an atraumatic right polyethylene liner failure for which she did not seek treatment. She was found to have imaging consistent with an adverse local tissue reaction and massive pseudotumor formation. During revision surgery, fracture of the acetabular liner was noted, with ceramic head wear through the titanium cup. In the months after her debridement and prosthesis revision, the patient continued to complain of systemic symptoms including weakness, fatigue, headaches, and vision problems. Serum titanium levels were found to be 100 times higher than normal. This case serves as a rarely reported example of titanium toxicity and titanium pseudotumor formation in the setting of polyethylene failure.
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Affiliation(s)
- Sandip P Tarpada
- Department of Orthopaedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Jeremy Loloi
- Department of Orthopaedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Evan M Schwechter
- Department of Orthopaedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
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Waldstein W, Koller U, Springer B, Kolbitsch P, Brodner W, Windhager R, Lass R. Serum cobalt concentrations remain at low levels at a minimum of 20 years following metal-on-metal total hip arthroplasty. Bone Joint Res 2020; 9:146-151. [PMID: 32435467 PMCID: PMC7229295 DOI: 10.1302/2046-3758.93.bjr-2019-0218.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aims Second-generation metal-on-metal (MoM) articulations in total hip arthroplasty (THA) were introduced in order to reduce wear-related complications. The current study reports on the serum cobalt levels and the clinical outcome at a minimum of 20 years following THA with a MoM (Metasul) or a ceramic-on-polyethylene (CoP) bearing. Methods The present study provides an update of a previously published prospective randomized controlled study, evaluating the serum cobalt levels of a consecutive cohort of 100 patients following THA with a MoM or a CoP articulation. A total of 31 patients were available for clinical and radiological follow-up examination. After exclusion of 11 patients because of other cobalt-containing implants, 20 patients (MoM (n = 11); CoP (n = 9)) with a mean age of 69 years (42 to 97) were analyzed. Serum cobalt levels were compared to serum cobalt levels five years out of surgery. Results The median cobalt concentration in the MoM group was 1.04 μg/l (interquartile range (IQR) 0.64 to 1.70) at a mean of 21 years (20 to 24) postoperatively and these values were similar (p = 0.799) to cobalt levels at five years. In the CoP control group, the median cobalt levels were below the detection limit (< 0.3 μg/l; median 0.15 μg/l, IQR 0.15 to 0.75) at 20 years. The mean Harris Hip Score was 91.4 points (61 to 100) in the MoM group and 92.8 points (63 to 100) in the CoP group. Conclusion This study represents the longest follow-up series evaluating the serum cobalt levels after 28 mm head MoM bearing THA and shows that serum cobalt concentrations remain at low levels at a mean of 21 years (20 to 24) after implantation. Cite this article:Bone Joint Res. 2020;9(3):145–150.
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Affiliation(s)
- Wenzel Waldstein
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Ulrich Koller
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Bernhard Springer
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Paul Kolbitsch
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Wolfram Brodner
- Department of Orthopedics, University Hospital Krems, Krems, Austria
| | - Reinhard Windhager
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Richard Lass
- Department of Orthopaedic and Trauma Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
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Reiner T, Klotz MC, Seelmann K, Hertzsch F, Innmann MM, Streit MR, Nees TA, Moradi B, Merle C, Kretzer JP, Gotterbarm T. Long-Term Results of a Second-Generation, Small-Diameter, Metal-On-Metal Bearing in Primary Total Hip Arthroplasty at 14-year Follow-Up. MATERIALS 2020; 13:ma13030557. [PMID: 31991553 PMCID: PMC7040657 DOI: 10.3390/ma13030557] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/13/2020] [Accepted: 01/20/2020] [Indexed: 12/12/2022]
Abstract
(1) Background: The objective of the present study was to review the clinical and radiological results of a small-head, MoM bearing in primary THA and to determine blood metal ion levels at long-term follow-up. (2) Methods: We retrospectively evaluated the clinical and radiological results of 284 small-diameter, MoM 28-mm Metasul THA at a mean follow-up of 14.5 years, and measured blood metal ion concentrations in 174 of these patients. (3) Results: After 14 years, survival free for revision due to any reason was 94%. Proximal femoral osteolysis was seen in 23% of hips, and MRI demonstrated ARMD in 27 of the 66 investigated hips (41%). Mean cobalt, chromium, and titanium ion concentrations were 0.82 µg/L (range 0.22-4.45), 1.51 µg/L (0.04-22.69), and 2.68 µg/L (0.26-19.56) in patients with unilateral THA, and 2.59 µg/L (0.43-24.75), 2.50 µg/L (0.26-16.75), and 3.76 µg/L (0.67-19.77), respectively in patients with bilateral THA. Twenty-nine percent of patients showed cobalt or chromium ion levels > 2 µg/L. (4) Conclusions: Despite good clinical long-term results, increased blood metal ion levels (cobalt or chromium > 2 µg/L) were found in approximately one-third of asymptomatic patients, and proximal femoral osteolysis and ARMD were frequently seen in this cohort. Blood metal ion analysis appears helpful in the long-term follow-up of these patients in order to identify individuals at risk. In accordance with contemporary consensus statements, symptomatic patients with elevated metal ion levels and/or progressive osteolysis should be considered for additional CT or MARS MRI to determine the extent of soft tissue affection prior to revision surgery. Further studies are necessary to investigate the clinical relevance of ARMD in asymptomatic patients with small-head, MoM THA.
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Affiliation(s)
- Tobias Reiner
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
- Correspondence: ; Tel.: +49-6221-5634803; Fax: +49-6221-5626360
| | - Matthias C. Klotz
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Kirsten Seelmann
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Fabian Hertzsch
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Moritz M. Innmann
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Marcus R. Streit
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Timo A. Nees
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Babak Moradi
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Christian Merle
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
| | - Jan Philippe Kretzer
- Laboratory of Biomechanics and Implant Research, Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, 69118 Heidelberg, Germany;
| | - Tobias Gotterbarm
- Center for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany; (M.C.K.); (K.S.); (F.H.); (M.M.I.); (M.R.S.); (T.A.N.); (B.M.); (C.M.); (T.G.)
- Department of Orthopedics, Kepler University Hospital, Krankenhausstr. 7a, 4020 Linz, Austria
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11
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Swiatkowska I, Martin NG, Henckel J, Apthorp H, Hamshere J, Hart AJ. Blood and plasma titanium levels associated with well-functioning hip implants. J Trace Elem Med Biol 2020; 57:9-17. [PMID: 31546210 DOI: 10.1016/j.jtemb.2019.09.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/28/2019] [Accepted: 09/13/2019] [Indexed: 01/13/2023]
Abstract
BACKGROUND Hip implants are usually manufactured from cobalt-chromium and titanium alloys. As the implants wear and corrode, metal debris is released into the surrounding tissue and blood, providing a potential biomarker for their function. Whilst there are laboratory reference levels for blood cobalt and chromium in patients with well and poorly functioning hip implants, there are no such guidelines for titanium. This is despite the increasing use of titanium implants worldwide. PATIENTS AND METHODS We recruited a consecutive series of 95 patients (mean age 71 years, mean time after surgery 8.5 years) with one hip implant type, inserted by the same surgeon. We assessed clinical and radiological outcome, and measured blood and plasma titanium using high resolution inductively-coupled plasma mass spectrometry. RESULTS The upper normal reference limit for blood and plasma titanium was 2.20 and 2.56 μg L-1, respectively, and did not differ significantly between males and females. CONCLUSION We are the first to propose a laboratory reference level for blood and plasma titanium in patients with well-functioning titanium hip implants. This is an essential starting point for further studies to explore the clinical usefulness of blood titanium as a biomarker of orthopaedic implant performance, and comes at a time of considerable controversy regarding the use of certain titanium alloys in hip arthroplasty.
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Affiliation(s)
- Ilona Swiatkowska
- Institute of Orthopaedics and Musculoskeletal Science, University College London, HA7 4LP Stanmore, UK.
| | - Nicholas G Martin
- Trace Element Laboratory, North West London Pathology, Charing Cross Hospital, W6 8RF London, UK
| | - Johann Henckel
- Royal National Orthopaedic Hospital, Stanmore, HA7 4LP Stanmore, UK
| | | | | | - Alister J Hart
- Institute of Orthopaedics and Musculoskeletal Science, University College London, HA7 4LP Stanmore, UK; Royal National Orthopaedic Hospital, Stanmore, HA7 4LP Stanmore, UK
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12
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Swiatkowska I, Martin N, Hart AJ. Blood titanium level as a biomarker of orthopaedic implant wear. J Trace Elem Med Biol 2019; 53:120-128. [PMID: 30910194 DOI: 10.1016/j.jtemb.2019.02.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/18/2019] [Accepted: 02/27/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Joint replacement implants are usually manufactured from cobalt-chromium or titanium alloys. After the device is implanted, wear and corrosion generate metal particles and ions, which are released into local tissue and blood. The metal debris can cause a range of adverse local and systemic effects in patients. RESEARCH PROBLEM In the case of cobalt and chromium, a blood level exceeding 7 μg L-1 indicates potential for local toxicity, and a failing implant. It has been repeatedly suggested in the literature that measurement of titanium could also be used to assess implant function. Despite an increasing interest in this biomarker, and growing use of titanium in orthopaedics, it is unclear what blood concentrations should raise concerns. This is partly due to the technical challenges involved in the measurement of titanium in biological samples. AIM This Review summarises blood/serum titanium levels associated with well-functioning and malfunctioning prostheses, so that the prospects of using titanium measurements to gain insights into implant performance can be evaluated. CONCLUSION Due to inter-laboratory analytical differences, reliable conclusions regarding "normal" and "abnormal" titanium levels in patients with orthopaedic implants are difficult to draw. Diagnosis of symptomatic patients should be based on radiographic evidence combined with blood/serum metal levels.
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Affiliation(s)
- Ilona Swiatkowska
- Institute of Orthopaedics and Musculoskeletal Science, University College London, HA7 4LP, Stanmore, UK.
| | - Nicholas Martin
- Trace Element Laboratory, Clinical Biochemistry, Charing Cross Hospital, W6 8RF, London, UK
| | - Alister J Hart
- Institute of Orthopaedics and Musculoskeletal Science, University College London, HA7 4LP, Stanmore, UK; Royal National Orthopaedic Hospital, Stanmore, HA7 4LP, UK
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13
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Kim CH, Ryu JJ, Jeong MY, Kim JW, Chang JS, Yoon PW. Serum Metal Ion Levels in Cementless Metal-On-Metal Total Hip Arthroplasty: Long-Term Follow-Up Trends. J Arthroplasty 2019; 34:534-537. [PMID: 30545656 DOI: 10.1016/j.arth.2018.11.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/30/2018] [Accepted: 11/14/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Long-term trends in serum metal ion concentration after metal-on-metal (MoM) total hip arthroplasty (THA) are unclear. In most studies, serum metal ion levels increase initially and remain constant during follow-up. However, there are no previous studies that evaluate the metal ion level longitudinally at multiple intervals over the long term. Increasing metal ion levels during the long-term follow-up of patients who underwent cementless MoM THA has been seen, so this study investigated those trends. METHODS Seventy-one patients were followed for a minimum of 10 years (range, 10.0-18.6 years). All underwent unilateral THA with MoM bearings. Serum cobalt (Co) and chromium (Cr) levels were measured preoperatively and annually after surgery. Trends and differences in serum levels based on sex, mean age, body mass index, cup inclination, and implant selection were analyzed. RESULTS Within 5 years after the operation, the mean Co and Cr levels peaked postoperatively at 3-4 years (4.14 and 6.89 μg/L, respectively). Between 5 and 10 years postoperatively, the serum levels showed 2 tendencies. One group (62) showed a constant range, but a smaller group (9) showed increasing serum metal ion levels. The only factor which showed a difference between the 2 groups was body mass index (P = .030), which was lower in the increasing serum metal ion level group. CONCLUSION At a medium-term to long-term follow-up period, serum Co and Cr levels are not always constant. This should be considered when seeing patients with MoM THA, and laboratory tests may be needed for long-term follow-up.
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Affiliation(s)
- Chul-Ho Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Jung Ryu
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mi Yeon Jeong
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Wan Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Suk Chang
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Pil Whan Yoon
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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14
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Barry J, Kiss MO, Massé V, Lavigne M, Matta J, Vendittoli PA. Effect of Femoral Stem Modular Neck's Material on Metal Ion Release. Open Orthop J 2017; 11:1337-1344. [PMID: 29290872 PMCID: PMC5721328 DOI: 10.2174/1874325001711011337] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/11/2017] [Accepted: 11/16/2017] [Indexed: 11/22/2022] Open
Abstract
Background: In recent decades, the popularity of modular necks in total hip arthroplasty (THA) has increased since modular necks offer the potential to restore the patient’s native anatomy, and thus improve stability. Unfortunately, modular necks are associated with higher complication rates, including implant fracture and modular junction corrosion with adverse local tissue reaction to metal debris. Objective: The objective of this study was to determine the impact of modular neck material on titanium (Ti), chrome (Cr), and cobalt (Co) metal ion levels in patients who underwent a THA with Ti femoral stem, Ti or CrCo modular neck, and ceramic-on-ceramic (CoC) bearing. Methods: Whole blood Ti, Cr, and Co levels were compared at a minimum 1-year follow-up in 36 patients who underwent unilateral, primary CoC large-diameter head THA with Profemur® Preserve modular femoral stems (MicroPort, Arlington, TX, USA). Results: Higher Co concentrations were observed in the CrCo modular neck group (0.46 versus 0.26 µg/l in the Ti neck group, P=0.004) and higher Ti concentrations were observed in the Ti modular neck group (1.98 vs 1.59 µg/l in the CrCo neck group, P=0.007). However, these differences were not clinically meaningful since the absolute values remained within what is considered the safe range of Ti, Cr, and Co ions in whole blood. No patients were re-operated or revised. Conclusion: Modular neck materials had an impact on whole blood metal ion levels but the concentrations measured remained within the safe range at 1-year follow-up. There were no indirect signs of modular junction corrosion with either CrCo or Ti femoral necks.
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Affiliation(s)
- Janie Barry
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
| | - Marc-Olivier Kiss
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
| | - Vincent Massé
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
| | - Martin Lavigne
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
| | - Jihad Matta
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
| | - Pascal-Andre Vendittoli
- Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boulevard de l'Assomption, Montreal, Canada
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15
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Granchi D, Savarino LM, Ciapetti G, Baldini N. Biological effects of metal degradation in hip arthroplasties. Crit Rev Toxicol 2017; 48:170-193. [PMID: 29130357 DOI: 10.1080/10408444.2017.1392927] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Metals and metal alloys are the most used materials in orthopedic implants. The focus is on total hip arthroplasty (THA) that, though well tolerated, may be associated with local and remote adverse effects in the medium-long term. This review aims to summarize data on the biological consequences of the metal implant degradation that have been attributed predominantly to metal-on-metal (MoM) THA. Local responses to metals consist of a broad clinical spectrum ranging from small asymptomatic tissue lesions to severe destruction of bone and soft tissues, which are designated as metallosis, adverse reactions to metal debris (ARMD), aseptic lymphocytic vasculitis associated lesion (ALVAL), and pseudotumors. In addition, the dissemination of metal particles and ions throughout the body has been associated with systemic adverse effects, including organ toxicity, cancerogenesis, teratogenicity, and immunotoxicity. As proved by the multitude of studies in this field, metal degradation may increase safety issues associated with THA, especially with MoM hip systems. Data collection regarding local, systemic and long-term effects plays an essential role to better define any safety risks and to generate scientifically based recommendations.
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Affiliation(s)
- Donatella Granchi
- a Orthopedic Pathophysiology and Regenerative Medicine Unit , Rizzoli Orthopedic Institute , Bologna , Italy
| | - Lucia Maria Savarino
- a Orthopedic Pathophysiology and Regenerative Medicine Unit , Rizzoli Orthopedic Institute , Bologna , Italy
| | - Gabriela Ciapetti
- a Orthopedic Pathophysiology and Regenerative Medicine Unit , Rizzoli Orthopedic Institute , Bologna , Italy
| | - Nicola Baldini
- a Orthopedic Pathophysiology and Regenerative Medicine Unit , Rizzoli Orthopedic Institute , Bologna , Italy.,b Department of Biomedical and Neuromotor Science , University of Bologna , Bologna , Italy
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16
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Dahlstrand H, Stark A, Wick MC, Anissian L, Hailer NP, Weiss RJ. Comparison of metal ion concentrations and implant survival after total hip arthroplasty with metal-on-metal versus metal-on-polyethylene articulations. Acta Orthop 2017; 88:490-495. [PMID: 28699417 PMCID: PMC5560210 DOI: 10.1080/17453674.2017.1350370] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Large metal-on-metal (MoM) articulations are associated with metal wear and corrosion, leading to increased metal ion concentrations and unacceptable revision rates. There are few comparative studies of 28-mm MoM articulations with conventional metal-on-polyethylene (MoP) couplings. We present a long-term follow-up of a randomized controlled trial comparing MoM versus MoP 28-mm articulations, focused on metal ions and implant survival. Patients and methods - 85 patients with a mean age of 65 years at surgery were randomized to a MoM (Metasul) or a MoP (Protasul) bearing. After 16 years, 38 patients had died and 4 had undergone revision surgery. 13 patients were unavailable for clinical follow-up, leaving 30 patients (n = 14 MoM and n = 16 MoP) for analysis of metal ion concentrations and clinical outcome. Results - 15-year implant survival was similar in both groups (MoM 96% [95% CI 88-100] versus MoP 97% [95% CI 91-100]). The mean serum cobalt concentration was 4-fold higher in the MoM (1.5 μg/L) compared with the MoP cohort (0.4 μg/L, p < 0.001) and the mean chromium concentration was double in the MoM (2.2 μg/L) compared with the MoP cohort (1.0 μg/L, p = 0.05). Mean creatinine levels were similar in both groups (MoM 93 μmol/L versus MoP 92 μmol/L). Harris hip scores differed only marginally between the MoM and MoP cohorts. Interpretation - This is the longest follow-up of a randomized trial on 28-mm MoM articulations, and although implant survival in the 2 groups was similar, metal ion concentrations remained elevated in the MoM cohort even in the long term.
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Affiliation(s)
- Henrik Dahlstrand
- Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sports Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm;,Correspondence:
| | - André Stark
- Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm
| | - Marius C Wick
- Functional Unit for Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Karolinska Institutet Stockholm, Sweden
| | - Lucas Anissian
- Department of Orthopaedic Surgery, Oregon Health Science University, Portland, Oregon, USA
| | - Nils P Hailer
- Section of Orthopaedics, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Rüdiger J Weiss
- Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sports Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm
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17
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Serum Metal Ions with a Titanium Modular Neck Total Hip Replacement System. J Arthroplasty 2015; 30:1781-6. [PMID: 26027522 DOI: 10.1016/j.arth.2015.04.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/28/2015] [Accepted: 04/20/2015] [Indexed: 02/01/2023] Open
Abstract
The goal of this study is to evaluate serum levels of chromium (Cr), cobalt (Co), and titanium (Ti) within the first two years following total hip arthroplasty using a Ti modular neck system. Twenty-five patients were randomized to a metal-on-metal (MoM) bearing with an all CoCr shell, and the remaining 25 received a metal-on-polyethylene (MoP) with a Ti shell. Serum levels demonstrated increases for Cr, Co, and Ti at 1 year (P < .001). MoM had similar Ti levels to MoP hips at 1 year (P=0.11) but lower at 2 years (P=0.03). Results suggest that the passive corrosion (i.e., chemical, pitting, and crevice corrosion) of exposed non-articular metal surfaces may be a greater source of ions than the neck-stem or head-neck interfaces.
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18
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Shang X, Wang L, Kou D, Jia X, Yang X, Zhang M, Tang Y, Wang P, Wang S, Xu Y, Wang H. Metal hypersensitivity in patient with posterior lumbar spine fusion: a case report and its literature review. BMC Musculoskelet Disord 2014; 15:314. [PMID: 25257938 PMCID: PMC4192797 DOI: 10.1186/1471-2474-15-314] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 09/17/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Metal hypersensitivity, mostly documented in prosthesis implantation, is a rare complication after arthroplasty. Such cases become rarer and more difficult to diagnose when it comes to lumbar surgery. CASE PRESENTATION We present the case of a 52-year-old female patient with reoccured low back pain and sciatica after posterior lumbar decompression and fusion (PLDF) for her lumbar disc herniation. The initial clinical and radiological examinations showed no pathologies. Further imaging and histopathological studies in later period revealed an aseptic loosening of the hardware and an aseptic inflammatory response which was diagnosed to be metal hypersensitivity. To our knowledge, few allergic cases in the matter of spinal fusion were reported so far. CONCLUSIONS Metal hypersensitivity after spinal fusion should be considered in patients with representation of postoperative back pain. And elaborate history taking would conduce a lot to it's diagnose.
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Affiliation(s)
| | - Ling Wang
- Department of Spine Surgery, First Affiliated Hospital of Dalian Medical University, Dalian 116011, People's Republic of China.
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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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20
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Lass R, Grübl A, Kolb A, Domayer S, Csuk C, Kubista B, Giurea A, Windhager R. Primary cementless total hip arthroplasty with second-generation metal-on-metal bearings: a concise follow-up, at a minimum of seventeen years, of a previous report. J Bone Joint Surg Am 2014; 96:e37. [PMID: 24599209 DOI: 10.2106/jbjs.m.00748] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Second-generation, metal-on-metal bearings were introduced in 1988, to reduce wear and avoid polyethylene particle-induced osteolysis from total hip arthroplasty. In 2007, we reported the long-term results of ninety-eight patients (105 hips) who underwent primary cementless total hip arthroplasty involving the use of a prosthesis with a high-carbide-concentration, metal-on-metal articulating surface between November 1992 and May 1994. The present study gives an update on this patient cohort. METHODS At a minimum of seventeen years postoperatively, forty-nine patients (fifty-two hips) were available for follow-up examination. We retrospectively evaluated clinical and radiographic results as well as serum metal concentration. The mean patient age at the time of the index arthroplasty was fifty-six years. RESULTS Three cups (6% of the hips) and one stem (2% of the hips) were revised because of aseptic loosening of the implants combined with focal osteolysis. At the time of the latest follow-up evaluation, the mean Harris hip score was 88.8 points, and the mean University of California Los Angeles (UCLA) activity score was 6.7 points. The cumulative rate of implant survival, with aseptic failure as the end point, was 93.0% at 18.8 years. The median serum cobalt concentration in patients whose hip implant was the only source of cobalt was 0.70 μg/L (range, 0.4 to 5.1 μg/L), showing no increase in the value as noted at a minimum of ten years of follow-up. CONCLUSIONS The clinical and radiographic results of our study, which, to our knowledge, represent the longest duration of follow-up for a series of cementless total hip arthroplasties with use of a 28-mm metal-on-metal bearing, continue to be comparable with the results observed for other hard-on-hard bearings.
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Affiliation(s)
- R Lass
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - A Grübl
- Sanatorium Hera, Löblichgasse 14, A-1090 Vienna, Austria
| | - A Kolb
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - S Domayer
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - C Csuk
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - B Kubista
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - A Giurea
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
| | - R Windhager
- Department of Orthopedics, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. E-mail address for R. Lass:
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Surface Characterization of Retrieved Metal-on-Metal Total Hip Implants from Patients with Adverse Reaction to Metal Debris. MATERIALS 2014; 7:1866-1879. [PMID: 28788544 PMCID: PMC5453258 DOI: 10.3390/ma7031866] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Revised: 02/20/2014] [Accepted: 02/25/2014] [Indexed: 12/27/2022]
Abstract
The use of metal-on-metal (MoM) total hip implants has decreased recently due to reports of high failure rates and adverse local tissue reaction (ALTR). It has been hypothesized that wear metal debris released from CoCr bearing surfaces may provoke delayed hypersensitivity reactions. The goal of this study is to evaluate the microscopic bearing surface characteristics of implants revised due to evidence of ALTR. The bearing surface of each head and cup was analyzed using multiple microscopy techniques for characterization of the surface features. The presence of severe mechanical scratching was a common characteristic found in all of the implants evaluated. Mechanical factors seemed to be the prevalent failure mode related to the appearance of ALTR with this particular set of retrieved implants.
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22
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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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In vivo serum titanium ion levels following modular neck total hip arthroplasty--10 year results in 67 patients. Acta Biomater 2013; 9:6278-82. [PMID: 23232209 DOI: 10.1016/j.actbio.2012.12.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 11/28/2012] [Accepted: 12/02/2012] [Indexed: 02/01/2023]
Abstract
The objective of the present cross-sectional study was to determine in vivo titanium ion levels following cementless total hip arthroplasty (THA) using a modular stem system with different shapes for femoral canal fit and multiple neck options. A consecutive series of 173 patients (190 hips) who underwent cementless modular neck THA and a ceramic on polyethylene bearing with a median follow-up of 9 (7-13) years was evaluated retrospectively. According to a standardized protocol, titanium ion measurements were performed on 67 patients using high-resolution inductively coupled plasma-mass spectrometry. Ion levels were compared to a control group comprising patients with non-modular titanium implants (n=11) and to individuals without implants (n=23). Modular neck THA did not result in elevated titanium ion levels compared to non-modular THA. Compared to individuals without implants, both modular THA and non-modular THA showed elevated titanium ion levels. Absolute titanium ion levels, however, were comparatively low for both implants. The data suggest that the present modular stem system does not result in elevated systemic titanium ion levels in the medium term when compared to non-modular stems. Further longitudinal studies are needed to evaluate the use of systemic titanium ion levels as an objective diagnostic tool to identify THA failure and to monitor patients following revision surgery.
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Abstract
Over the past three decades, alumina ceramic, now in its third/fourth generation, has been markedly improved in terms of its mechanical properties, including purity, grain microstructure, and burst strength. In the clinic, it is particularly suitable for young and for very active patients. This paper discusses the development and characteristics of different kinds of ceramics. In addition, ceramics in the third/fourth generation which are used in total hip arthroplasty clinically are reviewed in detail.
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Affiliation(s)
- You-zhi Cai
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Solarino G, Piazzolla A, Notarnicola A, Moretti L, Tafuri S, De Giorgi S, Moretti B. Long-term results of 32-mm alumina-on-alumina THA for avascular necrosis of the femoral head. J Orthop Traumatol 2012; 13:21-7. [PMID: 22249776 PMCID: PMC3284675 DOI: 10.1007/s10195-011-0174-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Accepted: 12/04/2011] [Indexed: 11/17/2022] Open
Abstract
Background Ceramic bearings in total hip arthroplasty (THA) have been introduced in clinical practice to minimize the problem of polyethylene particle–induced osteolysis. The aim of the study is to report the results of 68 consecutive alumina-on-alumina THAs done in 61 patients for avascular necrosis (AVN) of the femoral head. Materials and methods In all implants a press-fit cup was used; it was combined with a 32-mm alumina head and with titanium-alloy stems. The mean age at surgery was 50 years. At an average follow-up of 13 years two hips have been revised, one for periprosthetic infection and one for excessive abduction of the cup. Results No revision for aseptic loosening is recorded; one anatomical cementless femoral stem had radiological evidence of definite aseptic loosening. No dislocations occurred, and no osteolysis was observed. Conclusions The results support the application of alumina-alumina THA for long-lasting replacements.
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Affiliation(s)
- Giuseppe Solarino
- Department of Neuroscience and Sense Organs, Orthopaedic and Traumatology Unit, Faculty of Medicine and Surgery, General Hospital, University of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
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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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Sakellariou VI, Atsali E, Starantzis K, Batistaki C, Brozou T, Pantos P, Stathopoulos K, Soultanis K. Postoperative spinal infection mimicking systemic vasculitis with titanium-spinal implants. SCOLIOSIS 2011; 6:20. [PMID: 21914179 PMCID: PMC3182133 DOI: 10.1186/1748-7161-6-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 09/13/2011] [Indexed: 12/12/2022]
Abstract
BACKGROUND Secondary systemic vasculitis after posterior spinal fusion surgery is rare. It is usually related to over-reaction of immune-system, to genetic factors, toxicity, infection or metal allergies. CASE DESCRIPTION A 14 year-old girl with a history of extended posterior spinal fusion due to idiopathic scoliosis presented to our department with diffuse erythema and nephritis (macroscopic hemuresis and proteinuria) 5 months post surgery. The surgical trauma had no signs of inflammation or infection. The blood markers ESR and CRP were increased. Skin tests were positive for nickel allergy, which is a content of titanium alloy. The patient received corticosteroids systematically (hydrocortisone 10 mg) for 6 months, leading to total recess of skin and systemic reaction. However, a palpable mass close to the surgical wound raised the suspicion of a late infection. The patient had a second surgery consisting of surgical debridement and one stage revision of posterior spinal instrumentation. Intraoperative cultures were positive to Staphylococcus aureus. Intravenous antibiotics were administered. The patient is now free of symptoms 24 months post revision surgery without any signs of recurrence of either vasculitis or infection. LITERATURE REVIEW Systemic vasculitis after spinal surgery is exceptionally rare. Causative factors are broad and sometimes controversial. In general, it is associated with allergy to metal ions. This is usually addressed with metal on metal total hip bearings. In spinal surgery, titanium implants are considered to be inert and only few reports have presented cases with systemic vasculitides. Therefore, other etiologies of immune over-reaction should always be considered, such as drug toxicity, infection, or genetic predisposition. PURPOSES AND CLINICAL RELEVANCE Our purpose was to highlight the difficulties during the diagnostic work-up for systemic vasculitis and management in cases of posterior spinal surgery.
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Affiliation(s)
- Vasileios I Sakellariou
- First Department of Orthopaedics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Erato Atsali
- Third Department of Paediatrics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Konstantinos Starantzis
- First Department of Orthopaedics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Chrysanthi Batistaki
- Second Department of Anaesthesiology, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Triantafyllia Brozou
- Third Department of Paediatrics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Panayiotis Pantos
- First Department of Orthopaedics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Konstantinos Stathopoulos
- First Department of Orthopaedics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
| | - Konstantinos Soultanis
- First Department of Orthopaedics, School of Medicine, University of Athens, Attikon, University General Hospital, Chaidari, Greece
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Kim PR, Beaulé PE, Dunbar M, Lee JKL, Birkett N, Turner MC, Yenugadhati N, Armstrong V, Krewski D. Cobalt and chromium levels in blood and urine following hip resurfacing arthroplasty with the Conserve Plus implant. J Bone Joint Surg Am 2011; 93 Suppl 2:107-17. [PMID: 21543699 DOI: 10.2106/jbjs.j.01721] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The purpose of the present study was to determine cobalt and chromium ion levels in the blood and urine of patients in whom a modern-generation metal-on-metal hip resurfacing device had been implanted. METHODS A total of ninety-seven patients with a Conserve Plus metal-on-metal hip resurfacing implant were followed prospectively for two years. Cobalt and chromium levels in erythrocytes, serum, and urine were measured preoperatively as well as three, six, twelve, and twenty-four months postoperatively. RESULTS The median serum cobalt and chromium ion levels were 1.04 μg/L (range, 0.31 to 7.42 μg/L) and 2.00 μg/L (range, 0.28 to 10.49 μg/L), respectively, at one year after surgery and 1.08 μg/L (range, 0.44 to 7.13 μg/L) and 1.64 μg/L (range, 0.47 to 10.95 μg/L), respectively, at two years after surgery. The corresponding mean levels (and standard deviations) of serum cobalt and chromium were 1.68 ± 1.66 μg/L and 2.70 ± 2.22 μg/L, respectively, at one year after surgery and 1.79 ± 1.66 μg/L and 2.70 ± 2.37 μg/L, respectively, at two years after surgery. CONCLUSIONS These levels compare favorably with other published ion results for metal-on-metal hip resurfacing and replacement implants. No pseudotumors or other adverse soft-tissue reactions were encountered in our study population. Further research is needed to determine the clinical importance of increased cobalt and chromium ion levels in serum and urine following metal-on-metal hip resurfacing.
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Affiliation(s)
- Paul R Kim
- Division of Orthopedics, The Ottawa Hospital-General Campus, Room W1650, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada.
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Hosman AH, van der Mei HC, Bulstra SK, Busscher HJ, Neut D. Effects of metal-on-metal wear on the host immune system and infection in hip arthroplasty. Acta Orthop 2010; 81:526-34. [PMID: 20860450 PMCID: PMC3214739 DOI: 10.3109/17453674.2010.519169] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [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 Joint replacement with metal-on-metal (MOM) bearings have gained popularity in the last decades in young and active patients. However, the possible effects of MOM wear debris and its corrosion products are still the subject of debate. Alongside the potential disadvantages such as toxicity, the influences of metal particles and metal ions on infection risk are unclear. METHODS We reviewed the available literature on the influence of degradation products of MOM bearings in total hip arthroplasties on infection risk. RESULTS Wear products were found to influence the risk of infection by hampering the immune system, by inhibiting or accelerating bacterial growth, and by a possible antibiotic resistance and heavy metal co-selection mechanism. INTERPRETATION Whether or not the combined effects of MOM wear products make MOM bearings less or more prone to infection requires investigation in the near future.
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Affiliation(s)
| | | | - Sjoerd K Bulstra
- Department of Orthopaedic Surgery, University Medical Center Groningen, Groningen, the Netherlands
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Affatato S, Spinelli M, Zavalloni M, Traina F, Carmignato S, Toni A. Ceramic-On-Metal for Total Hip Replacement: Mixing and Matching Can Lead to High Wear. Artif Organs 2010; 34:319-23. [DOI: 10.1111/j.1525-1594.2009.00854.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Petsatodis GE, Papadopoulos PP, Papavasiliou KA, Hatzokos IG, Agathangelidis FG, Christodoulou AG. Primary cementless total hip arthroplasty with an alumina ceramic-on-ceramic bearing: results after a minimum of twenty years of follow-up. J Bone Joint Surg Am 2010; 92:639-44. [PMID: 20194322 DOI: 10.2106/jbjs.h.01829] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The biological problems related to wear debris after total hip arthroplasty have stimulated renewed interest in alternatives to metal-on-polyethylene bearing surfaces. METHODS We retrospectively evaluated the clinical and radiographic results of 100 patients who had undergone a total of 109 primary total hip arthroplasties with a cementless alumina ceramic-on-ceramic prosthesis between January 1985 and December 1989. The mean age of the patients at the time of the index arthroplasty was forty-six years. Clinical evaluation was performed with use of the Charnley modification of the Merle d'Aubigné-Postel scale. Seventy-eight patients who had had a total of eighty-five arthroplasties were available for follow-up evaluation at an average of 20.8 years. The patients' average age at the time of the latest follow-up was 66.8 years. RESULTS Six hips (six acetabular cups and one femoral stem) in six patients underwent revision. Aseptic loosening of the cup combined with focal osteolysis was the cause of all six revisions. In one patient, the stem was also revised because of aseptic loosening. At the time of final follow-up, the result was excellent (according to the Merle d'Aubigné-Postel scale) in 68% of the hips, good in 19%, fair in 9%, and poor in 4%. The mean Merle d'Aubigné-Postel score improved from 7.9 points preoperatively to 16.9 points postoperatively (p < 0.001). The cumulative rate of survival of the prostheses was 84.4% at 20.8 years. CONCLUSIONS The results of these cementless ceramic-on-ceramic total hip arthroplasties continued to be satisfactory at a minimum of twenty years postoperatively. The improved design of contemporary prostheses and the new generation of ceramic-on-ceramic bearing surfaces may lead to even better long-term results.
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Affiliation(s)
- George E Petsatodis
- 1st Orthopaedic Department, G. Papanikolaou General Hospital, 570 10, Exohi, Thessaloniki, Greece
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Distal radius fractures and titanium volar plates: should we take the plates out? J Hand Surg Am 2010; 35:141-3. [PMID: 20117317 DOI: 10.1016/j.jhsa.2009.10.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Accepted: 10/25/2009] [Indexed: 02/02/2023]
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