Comparison of chromium and cobalt serum levels between a modular neck stem and its monoblock counterpart in primary total hip arthroplasty.
Eur J Orthop Surg Traumatol
; 33(8): 3403-3409, 2023 Dec.
Article
em En
| MEDLINE
| ID: mdl-37140672
ABSTRACT
BACKGROUND:
The addition of junctions in modular stems implies a greater susceptibility to corrosion.PURPOSE:
The aim of this study is to compare serum chromium and cobalt levels after using a bimodular stem and its monoblock counterpart in primary total hip arthroplasty. Postoperative clinical scores were also compared. PATIENTS ANDMETHODS:
A prospective cohort study between 2012 and 2015 was designed. One arm of the cohort included patients with the cementless modular neck stem H-Max M® and the other with the cementless monoblock stem counterpart H-Max S®.RESULTS:
No statistically significant difference was found in chromium value between groups (p = 0.621) at two years postoperative. Cobalt value was higher in the modular group (p = < 0.001). No statistically significant difference was found in clinical postoperative scores except for the Harris Hip Score, with better results at six months in modular group (p = 0.007).CONCLUSIONS:
Higher serum cobalt level in the modular group has limited the use of modular stems in our daily practice. Advantages of modular stem were not found. LEVEL OF EVIDENCE II.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artroplastia de Quadril
/
Prótese de Quadril
Tipo de estudo:
Observational_studies
Limite:
Humans
Idioma:
En
Revista:
Eur J Orthop Surg Traumatol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Espanha