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Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population.

Publication ,  Journal Article
Kleeman, LT; Goltz, D; Seyler, TM; Mammarappallil, JG; Attarian, DE; Wellman, SS; Bolognesi, MP
Published in: J Arthroplasty
July 2018

BACKGROUND: Pseudotumor formation from metal-on-metal (MoM) hip implants is associated with implant revision. The relationship between pseudotumor type and patient outcomes is unknown. METHODS: We retrospectively reviewed patients with a MoM total hip arthroplasty and metal artifact reduction sequence magnetic resonance imaging. Pseudotumors were graded using a validated classification system by a fellowship-trained radiologist. Patient demographics, metal ion levels, and implant survival were analyzed. RESULTS: Pseudotumors were present in 49 hips (53%). Thirty-two (65%) pseudotumors were cystic thin walled, 8 (16%) were cystic thick walled, and 9 (18%) were solid masses. Patients with pseudotumors had high offset stems (P = .030) but not higher metal ion levels. Patients with thick-walled cystic or solid masses were more likely to be symptomatic (P = .025) and were at increased risk for revision (P = .004) compared to patients with cystic lesions. CONCLUSION: Pseudotumor formation is present in 53% of patients with a MoM total hip arthroplasty, of which 40% were asymptomatic. Patients with thick-walled cystic and solid lesions were more likely to be symptomatic and undergo revision.

Duke Scholars

Published In

J Arthroplasty

DOI

EISSN

1532-8406

Publication Date

July 2018

Volume

33

Issue

7S

Start / End Page

S259 / S264

Location

United States

Related Subject Headings

  • Risk Factors
  • Retrospective Studies
  • Reoperation
  • Prosthesis Design
  • Prevalence
  • Orthopedics
  • North Carolina
  • Middle Aged
  • Metals
  • Metal-on-Metal Joint Prostheses
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Kleeman, L. T., Goltz, D., Seyler, T. M., Mammarappallil, J. G., Attarian, D. E., Wellman, S. S., & Bolognesi, M. P. (2018). Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population. J Arthroplasty, 33(7S), S259–S264. https://doi.org/10.1016/j.arth.2018.03.039
Kleeman, Lindsay T., Daniel Goltz, Thorsten M. Seyler, Joseph G. Mammarappallil, David E. Attarian, Samuel S. Wellman, and Michael P. Bolognesi. “Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population.J Arthroplasty 33, no. 7S (July 2018): S259–64. https://doi.org/10.1016/j.arth.2018.03.039.
Kleeman LT, Goltz D, Seyler TM, Mammarappallil JG, Attarian DE, Wellman SS, et al. Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population. J Arthroplasty. 2018 Jul;33(7S):S259–64.
Kleeman, Lindsay T., et al. “Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population.J Arthroplasty, vol. 33, no. 7S, July 2018, pp. S259–64. Pubmed, doi:10.1016/j.arth.2018.03.039.
Kleeman LT, Goltz D, Seyler TM, Mammarappallil JG, Attarian DE, Wellman SS, Bolognesi MP. Association Between Pseudotumor Formation and Patient Factors in Metal-on-Metal Total Hip Arthroplasty Population. J Arthroplasty. 2018 Jul;33(7S):S259–S264.
Journal cover image

Published In

J Arthroplasty

DOI

EISSN

1532-8406

Publication Date

July 2018

Volume

33

Issue

7S

Start / End Page

S259 / S264

Location

United States

Related Subject Headings

  • Risk Factors
  • Retrospective Studies
  • Reoperation
  • Prosthesis Design
  • Prevalence
  • Orthopedics
  • North Carolina
  • Middle Aged
  • Metals
  • Metal-on-Metal Joint Prostheses