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[Translated article] In vitro elution of local anaesthetics from PMMA bone cement.
Monfort-Mira, M; Jornet-Gibert, M; Yela-Verdú, C; Torner-Pifarré, P; Balaguer-Castro, M.
Afiliación
  • Monfort-Mira M; Departamento de Cirugía Ortopédica y Traumatología, Hospital Clínic, Barcelona, Spain.
  • Jornet-Gibert M; Departamento de Cirugía Ortopédica y Traumatología, Hospital Clínic, Barcelona, Spain.
  • Yela-Verdú C; Departamento de Cirugía Ortopédica y Traumatología, Parc Taulí Hospital Universitari, Universitat Autònoma de Barcelona, Sabadell, Spain.
  • Torner-Pifarré P; Departamento de Cirugía Ortopédica y Traumatología, Hospital Clínic, Barcelona, Spain.
  • Balaguer-Castro M; Departamento de Cirugía Ortopédica y Traumatología, Hospital Clínic, Barcelona, Spain. Electronic address: mbalaguer@clinic.cat.
Rev Esp Cir Ortop Traumatol ; 2024 Mar 12.
Article en En, Es | MEDLINE | ID: mdl-38484939
ABSTRACT
BACKGROUND AND

AIM:

Currently, we do not have a gold standard for pain management after total knee arthroplasty. We may use one of more drug delivery systems, none of which are ideal. An ideal depot delivery system would provide therapeutic, nontoxic, doses of drug at the surgical side, especially during 72h postoperatively. The bone cement used in arthroplasties has been used as a drug delivery system, especially antibiotics, since 1970. Based on this principle, we developed this study with the aim to characterize the elution profile of two local anaesthetics (lidocaine hydrochloride and bupivacaine hydrochloride) from PMMA (polymethilmethacrylate) bone cement. MATERIAL AND

METHODS:

Palacos® R+G bone cement and lidocaine hydrochloride or bupivacaine hydrochloride specimens were obtained depending on the study group. These specimens were immersed in PBS (phosphate buffered saline) and removed from the solution at different set times. Subsequently, the concentration of local anaesthetic in the liquid was analyzed by liquid chromatography.

RESULTS:

The percentage of lidocaine eluted from PMMA bone cement in this study was 9.74% of the total lidocaine content per specimen at 72h and 18.73% at 336h (14 days). In case of bupivacaine, the elution percentage was 2.71% of the total bupivacaine content per specimen at 72h and 2.70% at 336h (14 days).

CONCLUSIONS:

Local anaesthetics elute in vitro from PMMA bone cement, reaching doses at 72h close to the doses used in anaesthetic blocks.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En / Es Revista: Rev Esp Cir Ortop Traumatol Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: España
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En / Es Revista: Rev Esp Cir Ortop Traumatol Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: España