How Should We Follow-Up Asymptomatic Metal-on-Metal Hip Resurfacing Patients? A Prospective Longitudinal Cohort Study.
J Arthroplasty
; 31(1): 146-51, 2016 Jan.
Article
en En
| MEDLINE
| ID: mdl-26439179
ABSTRACT
Current surveillance for metal-on-metal hip resurfacing (MoMHR) patients is not evidence based. This study established changes that occurred in 152 asymptomatic MoMHRs using repeat ultrasound and patient-reported outcomes. Factors associated with (1) ultrasound progression and (2) developing new pseudotumors were analyzed. Patients underwent repeat assessments 4.3 years later. Ultrasound progression was observed in 19% (n = 29), with 10% (n = 15) developing new pseudotumors. Key predictors of ultrasound progression included high blood cobalt (P = .00013) and chromium (P = .00065), and high initial ultrasound grade (P = .003) and volume (P = .036). No asymptomatic MoMHRs with initially normal metal ions (<2 µg/L) and normal ultrasounds (33% of cohort) developed new pseudotumors. This patient subgroup does not require repeat follow-up within 5 years.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Diseño de Prótesis
/
Artroplastia de Reemplazo de Cadera
/
Granuloma de Células Plasmáticas
/
Prótesis de Cadera
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
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Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Arthroplasty
Asunto de la revista:
ORTOPEDIA
Año:
2016
Tipo del documento:
Article