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Clinical Orthopaedics and Related Research®

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01-02-2014 | Symposium: 2013 Hip Society Proceedings

Does Femoral Neck to Cup Impingement Affect Metal Ion Levels in Hip Resurfacing?

Authors: Michel J. Le Duff, MA, Alicia J. Johnson, BA, Andrew J. Wassef, MD, Harlan C. Amstutz, MD

Published in: Clinical Orthopaedics and Related Research® | Issue 2/2014

Abstract

Background

Impingement of the femoral neck with the acetabular component after metal-on-metal hip resurfacing arthroplasty (HRA) is a possible cause of edge loading and accelerated bearing wear. No attempt has been made to correlate radiographic impingement signs and blood metal ion levels.

Questions/purposes

We (1) compared serum cobalt (CoS) and chromium (CrS) concentrations between patients with and without radiographic impingement signs treated with unilateral HRA, (2) determined whether divot depth on the femoral neck correlated with CoS and CrS, and (3) assessed the predictive value of radiographic impingement signs for high levels of CoS and CrS.

Methods

A retrospective radiographic review of 141 patients with CoS and CrS analyses yielded 21 patients with and 120 without radiographic impingement signs (controls). Radiographic measurements included divot depth and orientation of the acetabular component to compute the contact patch to rim distance, a measure of functional head coverage. We defined a patient as having radiographic impingement signs if a remodeling of the femoral neck cortex showed a depression matching the predicted path of an impinging acetabular component. CoS and CrS were analyzed by inductively coupled plasma mass spectrometry and the radiographs were taken within 12 months of the last blood draw.

Results

Median CoS and CrS were greater in the impingement group than in controls in patients with less than 10-mm contact patch to rim distances. Divot depth did not correlate with CoS or CrS. In predicting elevated ion levels (≥ 7 μg/L), the presence of a radiographic impingement sign showed a sensitivity of 50% for CoS and 33% for CrS and a specificity of 87% for both CoS and CrS.

Conclusions

Radiographic impingement signs influenced CoS and CrS only when the functional head coverage was insufficient due to poor socket positioning. Radiographic impingement signs alone were not a good predictor of elevated metal ion levels.

Level of Evidence

Level III, diagnostic study. See Instructions for Authors for a complete description of levels of evidence.

Amstutz HC. “Top 10” technical pearls for successfully performing hip resurfacing arthroplasty. Tech Orthop. 2010;25:73–79.CrossRef

Amstutz HC, Beaulé PE, Dorey FJ, Le Duff MJ, Campbell PA, Gruen TA. Metal-on-metal hybrid surface arthroplasty—surgical technique. J. Bone Joint Surg. Am. 2006;88:234–249.PubMed

Amstutz HC, Campbell PA, Dorey FJ, Johnson AJ, Skipor A, Jacobs JJ. Do ion concentrations after metal-on-metal hip resurfacing increase over time? A prospective study. J Arthroplasty. 2013;28:695–700.PubMedCrossRef

Amstutz HC, Le Duff MJ. Background of metal-on-metal resurfacing. Proc Inst Mech Eng H. 2006;220:85–94.PubMedCrossRef

Amstutz HC, Le Duff MJ, Campbell PA, Dorey FJ. The effects of technique changes on aseptic loosening of the femoral component in hip resurfacing: results of 600 Conserve Plus with a 3–9 year follow-up. J Arthroplasty. 2007;22:481–489.PubMedCrossRef

Amstutz HC, Le Duff MJ, Johnson AJ. Socket position determines hip resurfacing 10-year survivorship. Clin Orthop Relat Res. 2012;470:3127–3133.PubMedCrossRef

Back DL, Young DA, Shimmin AJ. How do serum cobalt and chromium levels change after metal-on-metal hip resurfacing? Clin Orthop Relat Res. 2005;438:177–181.PubMedCrossRef

Ball ST, Schmalzried TP. Posterior femoroacetabular impingement (PFAI)—after hip resurfacing arthroplasty. Bull NYU Hosp Jt Dis. 2009;67:173–176.PubMed

Bergmann G, Deuretzbacher G, Heller M, Graichen F, Rohlmann A, Strauss J, Duda GN. Hip contact forces and gait patterns from routine activities. J Biomech. 2001;34:859–871.PubMedCrossRef

10.

Biedermann R, Tonin A, Krismer M, Rachbauer F, Eibl G, Stockl B. Reducing the risk of dislocation after total hip arthroplasty: the effect of orientation of the acetabular component. J Bone Joint Surg Br. 2005;87:762–769.PubMedCrossRef

11.

Grigoris P, Roberts P, Panousis K, Bosch H. The evolution of hip resurfacing arthroplasty. Orthop Clin North Am. 2005;36:125–134.PubMedCrossRef

12.

Gruen TA, Le Duff MJ, Wisk LE, Amstutz HC. Prevalence and clinical relevance of radiographic signs of impingement in metal-on-metal hybrid hip resurfacing. J Bone Joint Surg Am. 2011;93:1519–1526.PubMedCrossRef

13.

Heisel C, Streich N, Krachler M, Jakubowitz E, Kretzer JP. Characterization of the running-in period in total hip resurfacing arthroplasty: an in vivo and in vitro metal ion analysis. J Bone Joint Surg Am. 2008;90:125–133.PubMedCrossRef

14.

Johnson CR. A new method for roentgenographic examination of the upper end of the femur. J Bone Joint Surg. 1932;14:859–866.

15.

Langton DJ, Joyce TJ, Mangat N, Lord J, Van Orsouw M, De Smet K, Nargol AV. Reducing metal ion release following hip resurfacing arthroplasty. Orthop Clin North Am. 2011;42:169–180.PubMedCrossRef

16.

Langton DJ, Sprowson AP, Joyce TJ, Reed M, Carluke I, Partington P, Nargol AV. Blood metal ion concentrations after hip resurfacing arthroplasty: a comparative study of articular surface replacement and Birmingham hip resurfacing arthroplasties. J Bone Joint Surg Br. 2009;91:1287–1295.PubMedCrossRef

17.

Langton DJ, Sprowson AP, Mahadeva D, Bhatnagar S, Holland JP, Nargol AV. Cup anteversion in hip resurfacing: validation of EBRA and the presentation of a simple clinical grading system. J Arthroplasty. 2009;25:607–613.PubMedCrossRef

18.

Leslie IJ, Williams S, Isaac G, Ingham E, Fisher J. High cup angle and microseparation increase the wear of hip surface replacements. Clin Orthop Relat Res. 2009;467:2259–2265.PubMedCrossRef

19.

Lim SJ, Kim JH, Moon YW, Park YS. Femoroacetabular cup impingement after resurfacing arthroplasty of the hip. J Arthroplasty. 2012;27:60–65.PubMedCrossRef

20.

MacDonald SJ, McCalden RW, Chess DG, Bourne RB, Rorabeck CH, Cleland D, Leung F. Metal-on-metal versus polyethylene in hip arthroplasty: a randomized clinical trial. Clin Orthop Relat Res. 2003;406:282–296.PubMedCrossRef

21.

Matthies A, Underwood R, Cann P, Ilo K, Nawaz Z, Skinner J, Hart AJ. Retrieval analysis of 240 metal-on-metal hip components, comparing modular total hip replacement with hip resurfacing. J Bone Joint Surg Br. 2011;93:307–314.PubMedCrossRef

22.

Medicines and Healthcare products Regulatory Agency. Medical Device Alert. All metal-on-metal (MoM) hip replacements (MDA/2012/008). Available at: http://www.mhra.gov.uk/home/groups/dts-bs/documents/medicaldevicealert/con143787.pdf. Accessed October 12, 2012.

23.

Morlock MM, Bishop N, Zustin J, Hahn M, Ruther W, Amling M. Modes of implant failure after hip resurfacing: morphological and wear analysis of 267 retrieval specimens. J Bone Joint Surg Am. 2008;90:89–95.PubMedCrossRef

24.

Pulos N, Tiberi JV 3rd, Schmalzried TP. Measuring acetabular component position on lateral radiographs—ischio-lateral method. Bull NYU Hosp Jt Dis. 2011;69(suppl 1):S84–S89.PubMed

25.

Savarino L, Granchi D, Ciapetti G, Cenni E, Nardi Pantoli A, Rotini R, Veronesi C, 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

26.

Skipor AK, Campbell PA, Paterson LM, Amstutz HC, Schmalzried TP, Jacobs JJ. Serum and urine metal levels in patients with metal-on-metal surface arthroplasty. J Mater Sci Mater Med. 2002;13:1227–1234.PubMedCrossRef

27.

Tiberi JV, Pulos N, Kertzner M, Schmalzried TP. A more reliable method to assess acetabular component position. Clin Orthop Relat Res. 2012;470:471–476.PubMedCrossRef

28.

Underwood RJ, Zografos A, Sayles RS, Hart AJ, Cann P. Edge loading in metal-on-metal hips: low clearance is a new risk factor. Proc Inst Mech Eng H. 2012;226:217–226.PubMedCrossRef

29.

Van Der Straeten C, Grammatopoulos G, Gill HS, Calistri A, Campbell P, De Smet KA. The 2012 Otto Aufranc Award. The interpretation of metal ion levels in unilateral and bilateral hip resurfacing. Clin Orthop Relat Res. 2013;471:377–385.CrossRef

30.

Yoo MC, Cho YJ, Chun YS, Rhyu KH. Impingement between the acetabular cup and the femoral neck after hip resurfacing arthroplasty. J Bone Joint Surg Am. 2011;93:99–106.PubMedCrossRef

31.

Yoon JP, Le Duff MJ, Johnson AJ, Takamura KM, Ebramzadeh E, Amstutz HC. Contact patch to rim distance predicts metal ion levels in hip resurfacing. Clin Orthop Relat Res. 2013;471:1615–1621.PubMedCrossRef

Title: Does Femoral Neck to Cup Impingement Affect Metal Ion Levels in Hip Resurfacing?
Authors: Michel J. Le Duff, MA
Alicia J. Johnson, BA
Andrew J. Wassef, MD
Harlan C. Amstutz, MD
Publication date: 01-02-2014
Publisher: Springer US
Published in: Clinical Orthopaedics and Related Research® / Issue 2/2014
Print ISSN: 0009-921X
Electronic ISSN: 1528-1132
DOI: https://doi.org/10.1007/s11999-013-3074-8

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Does Femoral Neck to Cup Impingement Affect Metal Ion Levels in Hip Resurfacing?

Abstract

Background

Questions/purposes

Methods

Results

Conclusions

Level of Evidence

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Questions/purposes

Methods

Results

Conclusions

Level of Evidence

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