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Published in: Clinical Orthopaedics and Related Research® 9/2013

01-09-2013 | Clinical Research

Do Ion Levels in Metal-on-metal Hip Resurfacing Differ From Those in Metal-on-metal THA at Long-term Followup?

Authors: Lucia Savarino, BSc, Matteo Cadossi, MD, Eugenio Chiarello, MD, Nicola Baldini, MD, Sandro Giannini, MD

Published in: Clinical Orthopaedics and Related Research® | Issue 9/2013

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Abstract

Background

Metal-on-metal hip resurfacing arthroplasty (MOM HR) has become an established alternative to traditional metal-on-metal total hip arthroplasty (MOM THA) for younger, more active patients. Nevertheless, concerns remain regarding wear and corrosion of the bearing surfaces and the resulting systemic metal ion distribution.

Questions/purposes

We therefore asked whether (1) serum ion concentrations in patients with MOM HR at the time of long-term followup were higher than concentrations in a control population with no hip implants; (2) the ion concentrations in patients with MOM HR were different from those in patients with MOM THA; and (3) sex would influence ion levels with regard to implant type.

Methods

The MOM HR and MOM THA groups consisted of 25 patients (evaluated at a minimum of 96 months) and 16 patients (evaluated at a minimum of 106 months), respectively. Forty-eight healthy donors were recruited for reference values. Cobalt, chromium, nickel, and molybdenum were measured by furnace graphite atomic absorption spectrophotometry.

Results

Ion concentrations of cobalt, chromium, and molybdenum in MOM HR were higher than in controls. Chromium and cobalt release were higher in MOM HR than in MOM THA. The sex-based analysis showed the difference was because women had higher concentrations in the MOM HR group than in the MOM THA group, whereas there was no difference between the men in the two groups.

Conclusions

In MOM HR, high metal ion release persists for the long term. Consequently, it is important to implement strict biomonitoring for patients who have received these implants. The sustained high levels of chromium in females within the MOM HR group are concerning and merits strong consideration when choosing implants in this patient group.

Level of Evidence

Level III, therapeutic study. See the Instructions for Authors online for a complete description of level of evidence.
Literature
1.
go back to reference Amstutz HC, Le Duff MJ. Background of metal-on-metal resurfacing. Proc Inst Mech Eng H. 2006;220:85–94.PubMed Amstutz HC, Le Duff MJ. Background of metal-on-metal resurfacing. Proc Inst Mech Eng H. 2006;220:85–94.PubMed
2.
go back to reference Amstutz HC, Thomas BJ, Jinnah R, Kim W, Grogan T, Yale C. Treatment of primary osteoarthritis of the hip: a comparison of total joint and surface replacement arthroplasty. J Bone Joint Surg Am. 1984;66:228–241.PubMed Amstutz HC, Thomas BJ, Jinnah R, Kim W, Grogan T, Yale C. Treatment of primary osteoarthritis of the hip: a comparison of total joint and surface replacement arthroplasty. J Bone Joint Surg Am. 1984;66:228–241.PubMed
3.
go back to reference Anissian HL, Stark A, Good V, Dahlstrand H, Clarke IC. The wear pattern in metal-on-metal hip prostheses. J Biomed Mater Res. 2001;58:673–678.PubMedCrossRef Anissian HL, Stark A, Good V, Dahlstrand H, Clarke IC. The wear pattern in metal-on-metal hip prostheses. J Biomed Mater Res. 2001;58:673–678.PubMedCrossRef
4.
go back to reference Bedigrew KM, Ruh EL, Zhang Q, Clohisy JC, Barrack RL, Nunley RM. 2011 Marshall Urist Young Investigator Award. When to release patients to high-impact activities after hip resurfacing. Clin Orthop Relat Res. 2012;470:299–306.PubMedCrossRef Bedigrew KM, Ruh EL, Zhang Q, Clohisy JC, Barrack RL, Nunley RM. 2011 Marshall Urist Young Investigator Award. When to release patients to high-impact activities after hip resurfacing. Clin Orthop Relat Res. 2012;470:299–306.PubMedCrossRef
5.
go back to reference Boardman DR, Middleton FR, Kavanagh TG. A benign psoas mass following metal-on-metal resurfacing of the hip. J Bone Joint Surg Br. 2006;88:402–404.PubMed Boardman DR, Middleton FR, Kavanagh TG. A benign psoas mass following metal-on-metal resurfacing of the hip. J Bone Joint Surg Br. 2006;88:402–404.PubMed
6.
go back to reference Bocca B, Mattei D, Pino A, Alimonti A. Italian network for human biomonitoring of metals: preliminary results from two regions. Ann Ist Super Sanita. 2010;46:259–265.PubMed Bocca B, Mattei D, Pino A, Alimonti A. Italian network for human biomonitoring of metals: preliminary results from two regions. Ann Ist Super Sanita. 2010;46:259–265.PubMed
7.
go back to reference Bowsher JG, Hussain A, Williams PA, Shelton JC. Metal-on-metal hip simulator study of increased wear particle surface area due to ‘severe’ patient activity. Proc Inst Mech Eng H. 2006;220:279–287.PubMed Bowsher JG, Hussain A, Williams PA, Shelton JC. Metal-on-metal hip simulator study of increased wear particle surface area due to ‘severe’ patient activity. Proc Inst Mech Eng H. 2006;220:279–287.PubMed
8.
go back to reference Brown SA, Zhang K, Merritt K, Payer JH. In vivo transport and excretion of corrosion products from accelerated anodic corrosion of porous coated F75 alloy. J Biomed Mater Res. 1993;27:1007–1017.PubMedCrossRef Brown SA, Zhang K, Merritt K, Payer JH. In vivo transport and excretion of corrosion products from accelerated anodic corrosion of porous coated F75 alloy. J Biomed Mater Res. 1993;27:1007–1017.PubMedCrossRef
9.
go back to reference Clarke MT, Lee PT, Arora A, Villar RN. Levels of metal ions after small- and large-diameter metal-on-metal hip arthroplasty. J Bone Joint Surg Br. 2003;85:913–917.PubMed Clarke MT, Lee PT, Arora A, Villar RN. Levels of metal ions after small- and large-diameter metal-on-metal hip arthroplasty. J Bone Joint Surg Br. 2003;85:913–917.PubMed
10.
go back to reference Daniel J, Ziaee H, Pradhan C, McMinn DJ. Six-year results of a prospective study of metal ion levels in young patients with metal-on-metal hip resurfacings. J Bone Joint Surg Br. 2009;91:176–179.PubMedCrossRef Daniel J, Ziaee H, Pradhan C, McMinn DJ. Six-year results of a prospective study of metal ion levels in young patients with metal-on-metal hip resurfacings. J Bone Joint Surg Br. 2009;91:176–179.PubMedCrossRef
11.
go back to reference De Smet K, De Haan R, Calistri A, Campbell PA, Ebramzadeh E, Pattyn C, Gill HS. Metal ion measurement as a diagnostic tool to identify problems with metal-on-metal hip resurfacing. J Bone Joint Surg Am. 2008;90:202–208.PubMedCrossRef De Smet K, De Haan R, Calistri A, Campbell PA, Ebramzadeh E, Pattyn C, Gill HS. Metal ion measurement as a diagnostic tool to identify problems with metal-on-metal hip resurfacing. J Bone Joint Surg Am. 2008;90:202–208.PubMedCrossRef
12.
go back to reference deSouza RM, Parsons NR, Oni T, Dalton P, Costa M, Krikler S. Metal ion levels following resurfacing arthroplasty of the hip: serial results over a ten-year period. J Bone Joint Surg Br. 2010;92:1642–1647. deSouza RM, Parsons NR, Oni T, Dalton P, Costa M, Krikler S. Metal ion levels following resurfacing arthroplasty of the hip: serial results over a ten-year period. J Bone Joint Surg Br. 2010;92:1642–1647.
13.
go back to reference Doorn PF, Mirra JM, Campbell PA, Amstutz HC. Tissue reaction to metal on metal total hip prostheses. Clin Orthop Relat Res. 1996;329:187–205.CrossRef Doorn PF, Mirra JM, Campbell PA, Amstutz HC. Tissue reaction to metal on metal total hip prostheses. Clin Orthop Relat Res. 1996;329:187–205.CrossRef
14.
go back to reference Fisher NE, Killampalli VV, Kundra RK, Jagodzinski NA, Mathur K, Reading AD. Sporting and physical activity following hip resurfacing. Int Orthop. 2011;35:977–980.PubMedCrossRef Fisher NE, Killampalli VV, Kundra RK, Jagodzinski NA, Mathur K, Reading AD. Sporting and physical activity following hip resurfacing. Int Orthop. 2011;35:977–980.PubMedCrossRef
15.
go back to reference Grammatopoulos G, Pandit H; Oxford Hip and Knee Group, Murray DW, Gill HS. The relationship between head-neck ratio and pseudotumour formation in metal-on-metal resurfacing arthroplasty of the hip. J Bone Joint Surg Br. 2010;92:1527–1534.PubMed Grammatopoulos G, Pandit H; Oxford Hip and Knee Group, Murray DW, Gill HS. The relationship between head-neck ratio and pseudotumour formation in metal-on-metal resurfacing arthroplasty of the hip. J Bone Joint Surg Br. 2010;92:1527–1534.PubMed
16.
go back to reference Granchi D, Savarino L, Ciapetti G, Cenni E, Rotini R, Mieti M, Baldini N, Giunti A. Immunological changes in patients with total joint replacement following idiopathic osteoarthritis of the hip. J Bone Joint Surg Br. 2003;85:758–764.PubMed Granchi D, Savarino L, Ciapetti G, Cenni E, Rotini R, Mieti M, Baldini N, Giunti A. Immunological changes in patients with total joint replacement following idiopathic osteoarthritis of the hip. J Bone Joint Surg Br. 2003;85:758–764.PubMed
17.
go back to reference Hallab N, Merritt K, Jacobs JJ. Metal sensitivity in patients with orthopaedic implants. J Bone Joint Surg Am. 2001;83:428–436.PubMedCrossRef Hallab N, Merritt K, Jacobs JJ. Metal sensitivity in patients with orthopaedic implants. J Bone Joint Surg Am. 2001;83:428–436.PubMedCrossRef
18.
go back to reference Hallab NJ, Caicedo M, Finnegan A, Jacobs JJ. Th1 type lymphocyte reactivity to metals in patients with total hip arthroplasty. J Orthop Surg Res. 2008;3:6.PubMedCrossRef Hallab NJ, Caicedo M, Finnegan A, Jacobs JJ. Th1 type lymphocyte reactivity to metals in patients with total hip arthroplasty. J Orthop Surg Res. 2008;3:6.PubMedCrossRef
19.
go back to reference Harris WH. Traumatic arthritis of the hip after dislocation and acetabular fractures: treatment by mold arthroplasty. An end-result study using a new method of result evaluation. J Bone Joint Surg Am. 1969;51:737–755.PubMed Harris WH. Traumatic arthritis of the hip after dislocation and acetabular fractures: treatment by mold arthroplasty. An end-result study using a new method of result evaluation. J Bone Joint Surg Am. 1969;51:737–755.PubMed
20.
go back to reference Hartmann A, Lützner J, Kirschner S, Witzleb WC, Günther KP. Do survival rate and serum ion concentrations 10 years after metal-on-metal hip resurfacing provide evidence for continued use? Clin Orthop Relat Res. 2012;470:3118–3126.PubMedCrossRef Hartmann A, Lützner J, Kirschner S, Witzleb WC, Günther KP. Do survival rate and serum ion concentrations 10 years after metal-on-metal hip resurfacing provide evidence for continued use? Clin Orthop Relat Res. 2012;470:3118–3126.PubMedCrossRef
21.
go back to reference Hing C, Back D, Shimmin A. Hip resurfacing: indications, results, and conclusions. Instr Course Lect. 2007;56:171–178.PubMed Hing C, Back D, Shimmin A. Hip resurfacing: indications, results, and conclusions. Instr Course Lect. 2007;56:171–178.PubMed
22.
go back to reference Hing CB, Young DA, Dalziel RE, Bailey M, Back DL, Shimmin AJ. Narrowing of the neck in resurfacing arthroplasty of the hip: a radiological study. J Bone Joint Surg Br. 2007;89:1019–1024.PubMedCrossRef Hing CB, Young DA, Dalziel RE, Bailey M, Back DL, Shimmin AJ. Narrowing of the neck in resurfacing arthroplasty of the hip: a radiological study. J Bone Joint Surg Br. 2007;89:1019–1024.PubMedCrossRef
23.
go back to reference Hodgson AW, Mischler S, Von Rechenberg B, Virtanen S. An analysis of the in vivo deterioration of Co-Cr-Mo implants through wear and corrosion. Proc Inst Mech Eng H. 2007;221:291–303.PubMed Hodgson AW, Mischler S, Von Rechenberg B, Virtanen S. An analysis of the in vivo deterioration of Co-Cr-Mo implants through wear and corrosion. Proc Inst Mech Eng H. 2007;221:291–303.PubMed
24.
go back to reference Huk OL, Catelas I, Mwale F, Antoniou J, Zukor DJ, Petit A. Induction of apoptosis and necrosis by metal ions in vitro. J Arthroplasty. 2004;19(Suppl 3):84–87.PubMedCrossRef Huk OL, Catelas I, Mwale F, Antoniou J, Zukor DJ, Petit A. Induction of apoptosis and necrosis by metal ions in vitro. J Arthroplasty. 2004;19(Suppl 3):84–87.PubMedCrossRef
25.
go back to reference Jack CM, Walter WL, Shimmin AJ, Cashman K, de Steiger RN. Large diameter metal on metal articulations. Comparison of total hip arthroplasty and hip resurfacing arthroplasty. J Arthroplasty. 2013;28:650–653.PubMedCrossRef Jack CM, Walter WL, Shimmin AJ, Cashman K, de Steiger RN. Large diameter metal on metal articulations. Comparison of total hip arthroplasty and hip resurfacing arthroplasty. J Arthroplasty. 2013;28:650–653.PubMedCrossRef
26.
go back to reference Jacobs JJ, Urban RM, Hallab NJ, Skipor AK, Fischer A, Wimmer MA. Metal-on-metal bearing surfaces. J Am Acad Orthop Surg. 2009;17:69–76.PubMed Jacobs JJ, Urban RM, Hallab NJ, Skipor AK, Fischer A, Wimmer MA. Metal-on-metal bearing surfaces. J Am Acad Orthop Surg. 2009;17:69–76.PubMed
27.
go back to reference Jacobs M, Gorab R, Mattingly D, Trick L, Southworth C. Three- to six-year results with the Ultima metal-on-metal hip articulation for primary total hip arthroplasty. J Arthroplasty. 2004;19(Suppl 2):48–53.PubMedCrossRef Jacobs M, Gorab R, Mattingly D, Trick L, Southworth C. Three- to six-year results with the Ultima metal-on-metal hip articulation for primary total hip arthroplasty. J Arthroplasty. 2004;19(Suppl 2):48–53.PubMedCrossRef
28.
go back to reference Jazrawi LM, Kummer FJ, DiCesare PE. Alternative bearing surfaces for total joint arthroplasty. J Am Acad Orthop Surg. 1998;6:198–203.PubMed Jazrawi LM, Kummer FJ, DiCesare PE. Alternative bearing surfaces for total joint arthroplasty. J Am Acad Orthop Surg. 1998;6:198–203.PubMed
29.
go back to reference Ladon D, Doherty A, Newson R, Turner J, Bhamra M, Case CP. Changes in metal levels and chromosome aberrations in the peripheral blood of patients after metal-on-metal hip arthroplasty. J Arthroplasty. 2004;19(Suppl 3):78–83.PubMedCrossRef Ladon D, Doherty A, Newson R, Turner J, Bhamra M, Case CP. Changes in metal levels and chromosome aberrations in the peripheral blood of patients after metal-on-metal hip arthroplasty. J Arthroplasty. 2004;19(Suppl 3):78–83.PubMedCrossRef
30.
go back to reference MacDonald SJ. Can a safe level for metal ions in patients with metal-on-metal total hip arthroplasties be determined? J Arthroplasty. 2004;19(Suppl 3):71–77.PubMedCrossRef MacDonald SJ. Can a safe level for metal ions in patients with metal-on-metal total hip arthroplasties be determined? J Arthroplasty. 2004;19(Suppl 3):71–77.PubMedCrossRef
31.
go back to reference McMinn D, Treacy R, Lin K, Pynsent P. Metal on metal surface replacement of the hip: experience of the McMinn prosthesis. Clin Orthop Relat Res. 1996;329(Suppl):89–98.CrossRef McMinn D, Treacy R, Lin K, Pynsent P. Metal on metal surface replacement of the hip: experience of the McMinn prosthesis. Clin Orthop Relat Res. 1996;329(Suppl):89–98.CrossRef
32.
go back to reference Merritt K, Brown SA. Release of hexavalent chromium from corrosion of stainless steel and cobalt-chrome alloys. J Biomed Mater Res. 1995;29:627–633.PubMedCrossRef Merritt K, Brown SA. Release of hexavalent chromium from corrosion of stainless steel and cobalt-chrome alloys. J Biomed Mater Res. 1995;29:627–633.PubMedCrossRef
33.
go back to reference Moroni A, Savarino L, Cadossi M, Baldini N, Giannini S. Does ion release differ between hip resurfacing and metal-on-metal THA? Clin Orthop Relat Res. 2008;466:700–707.PubMedCrossRef Moroni A, Savarino L, Cadossi M, Baldini N, Giannini S. Does ion release differ between hip resurfacing and metal-on-metal THA? Clin Orthop Relat Res. 2008;466:700–707.PubMedCrossRef
34.
go back to reference Moroni A, Savarino L, Hoque M, Cadossi M, Baldini N. Do ion levels in hip resurfacing differ from metal-on-metal THA at midterm? Clin Orthop Relat Res. 2011;469:180–187.PubMedCrossRef Moroni A, Savarino L, Hoque M, Cadossi M, Baldini N. Do ion levels in hip resurfacing differ from metal-on-metal THA at midterm? Clin Orthop Relat Res. 2011;469:180–187.PubMedCrossRef
35.
go back to reference Okazaki Y, Gotoh E. Comparison of metal release from various metallic biomaterials in vitro. Biomaterials. 2005;26:11–21.PubMedCrossRef Okazaki Y, Gotoh E. Comparison of metal release from various metallic biomaterials in vitro. Biomaterials. 2005;26:11–21.PubMedCrossRef
36.
go back to reference Pandit H, Vlychou M, Whitwell D, Crook D, Luqmani R, Ostlere S, Murray DW, Athanasou NA. Necrotic granulomatous pseudotumours in bilateral resurfacing hip arthroplasties: evidence for a type IV immune response. Virchows Arch. 2008;453:529–534.PubMedCrossRef Pandit H, Vlychou M, Whitwell D, Crook D, Luqmani R, Ostlere S, Murray DW, Athanasou NA. Necrotic granulomatous pseudotumours in bilateral resurfacing hip arthroplasties: evidence for a type IV immune response. Virchows Arch. 2008;453:529–534.PubMedCrossRef
37.
go back to reference Savarino L, Granchi D, Ciapetti G, Cenni E, Nardi Pantoli A, Rotini R, Veronesi CA, Baldini N, Giunti A. Ion release in patients with metal-on-metal hip bearings in total joint replacement: a comparison with metal-on-polyethylene bearings. J Biomed Mater Res. 2002;63:467–474.PubMedCrossRef Savarino L, Granchi D, Ciapetti G, Cenni E, Nardi Pantoli A, Rotini R, Veronesi CA, Baldini N, Giunti A. Ion release in patients with metal-on-metal hip bearings in total joint replacement: a comparison with metal-on-polyethylene bearings. J Biomed Mater Res. 2002;63:467–474.PubMedCrossRef
38.
go back to reference Savarino L, Padovani G, Ferretti M, Greco M, Cenni E, Perrone G, Greco F, Baldini N, Giunti A. Serum ion levels after ceramic-on-ceramic and metal-on-metal total hip arthroplasty: 8-year minimum follow-up. J Orthop Res. 2008;26:1569–1576.PubMedCrossRef Savarino L, Padovani G, Ferretti M, Greco M, Cenni E, Perrone G, Greco F, Baldini N, Giunti A. Serum ion levels after ceramic-on-ceramic and metal-on-metal total hip arthroplasty: 8-year minimum follow-up. J Orthop Res. 2008;26:1569–1576.PubMedCrossRef
39.
go back to reference Savarino L, Stea S, Granchi D, Visentin M, Ciapetti G, Donati ME, Rollo G, Zinghi G, Pizzoferrato A, Montanaro L, Toni A. Sister chromatid exchanges and ion release in patients wearing fracture fixation devices. J Biomed Mater Res. 2000;50:21–26.PubMedCrossRef Savarino L, Stea S, Granchi D, Visentin M, Ciapetti G, Donati ME, Rollo G, Zinghi G, Pizzoferrato A, Montanaro L, Toni A. Sister chromatid exchanges and ion release in patients wearing fracture fixation devices. J Biomed Mater Res. 2000;50:21–26.PubMedCrossRef
40.
go back to reference Schaffer AW, Pilger A, Engelhardt C, Zweymuller K, Ruediger HW. Increased blood cobalt and chromium after total hip replacement. Clin Toxicol. 1999;37:839–844.CrossRef Schaffer AW, Pilger A, Engelhardt C, Zweymuller K, Ruediger HW. Increased blood cobalt and chromium after total hip replacement. Clin Toxicol. 1999;37:839–844.CrossRef
41.
go back to reference Shimmin AJ, Walter WL, Esposito C. The influence of the size of the component on the outcome of resurfacing arthroplasty of the hip: a review of the literature. J Bone Joint Surg Br. 2010;92:469–476.PubMedCrossRef Shimmin AJ, Walter WL, Esposito C. The influence of the size of the component on the outcome of resurfacing arthroplasty of the hip: a review of the literature. J Bone Joint Surg Br. 2010;92:469–476.PubMedCrossRef
42.
go back to reference Silva M, Heisel C, Schmalzried TP. Metal-on-metal total hip replacement. Clin Orthop Relat Res. 2005;430:53–61.PubMedCrossRef Silva M, Heisel C, Schmalzried TP. Metal-on-metal total hip replacement. Clin Orthop Relat Res. 2005;430:53–61.PubMedCrossRef
43.
go back to reference Smith AJ, Dieppe P, Howard PW, Blom AW; National Joint Registry for England and Wales. Failure rates of metal-on-metal hip resurfacings: analysis of data from the National Joint Registry for England and Wales. Lancet. 2012;380:1759–1766.PubMedCrossRef Smith AJ, Dieppe P, Howard PW, Blom AW; National Joint Registry for England and Wales. Failure rates of metal-on-metal hip resurfacings: analysis of data from the National Joint Registry for England and Wales. Lancet. 2012;380:1759–1766.PubMedCrossRef
44.
go back to reference Smolders JM, Hol A, Rijnberg WJ, van Susante JL. Metal ion levels and functional results after either resurfacing hip arthroplasty or conventional metal-on-metal hip arthroplasty. Acta Orthop. 2011;82:559–566.PubMedCrossRef Smolders JM, Hol A, Rijnberg WJ, van Susante JL. Metal ion levels and functional results after either resurfacing hip arthroplasty or conventional metal-on-metal hip arthroplasty. Acta Orthop. 2011;82:559–566.PubMedCrossRef
45.
go back to reference Traina F, De Clerico M, Biondi F, Pilla F, Tassinari E, Toni A. Sex differences in hip morphology: is stem modularity effective for total hip replacement? J Bone Joint Surg Am. 2009;91(Suppl 6):121–128.PubMedCrossRef Traina F, De Clerico M, Biondi F, Pilla F, Tassinari E, Toni A. Sex differences in hip morphology: is stem modularity effective for total hip replacement? J Bone Joint Surg Am. 2009;91(Suppl 6):121–128.PubMedCrossRef
46.
go back to reference Urban RM, Tomlinson MJ, Hall DJ, Jacobs JJ. Accumulation in liver and spleen of metal particles generated at nonbearing surfaces in hip arthroplasty. J Arthroplasty. 2004;19(Suppl 3):94–101.PubMedCrossRef Urban RM, Tomlinson MJ, Hall DJ, Jacobs JJ. Accumulation in liver and spleen of metal particles generated at nonbearing surfaces in hip arthroplasty. J Arthroplasty. 2004;19(Suppl 3):94–101.PubMedCrossRef
47.
go back to reference Vendittoli PA, Mottard S, Roy AG, Dupont C, Lavigne M. Chromium and cobalt ion release following the Durom high carbon content, forged metal-on-metal surface replacement of the hip. J Bone Joint Surg Br. 2007;89:441–448.PubMed Vendittoli PA, Mottard S, Roy AG, Dupont C, Lavigne M. Chromium and cobalt ion release following the Durom high carbon content, forged metal-on-metal surface replacement of the hip. J Bone Joint Surg Br. 2007;89:441–448.PubMed
Metadata
Title
Do Ion Levels in Metal-on-metal Hip Resurfacing Differ From Those in Metal-on-metal THA at Long-term Followup?
Authors
Lucia Savarino, BSc
Matteo Cadossi, MD
Eugenio Chiarello, MD
Nicola Baldini, MD
Sandro Giannini, MD
Publication date
01-09-2013
Publisher
Springer US
Published in
Clinical Orthopaedics and Related Research® / Issue 9/2013
Print ISSN: 0009-921X
Electronic ISSN: 1528-1132
DOI
https://doi.org/10.1007/s11999-013-2981-z

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