Coatings for femoral stems .
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(2):23 Acta Orthop. 2011 Jun;82(3):308-14. Epub 2011 Apr 1950 arthritic patients undergoing total hip arthroplasty were randomized to receive either distally tapered, extended coated stems, or straight proximally coated stems, to study potential differences in implant migration. At 2 years post-surgery, radiostereometric analysis revealed that both stem types demonstrated large amounts of implant migration, with no significant differences between groups.
Was the allocation sequence adequately generated?
Was allocation adequately concealed?
Blinding Treatment Providers: Was knowledge of the allocated interventions adequately prevented?
Blinding Outcome Assessors: Was knowledge of the allocated interventions adequately prevented?
Blinding Patients: Was knowledge of the allocated interventions adequately prevented?
Was loss to follow-up (missing outcome data) infrequent?
Are reports of the study free of suggestion of selective outcome reporting?
Were outcomes objective, patient-important and assessed in a manner to limit bias (ie. duplicate assessors, Independent assessors)?
Was the sample size sufficiently large to assure a balance of prognosis and sufficiently large number of outcome events?
Was investigator expertise/experience with both treatment and control techniques likely the same (ie.were criteria for surgeon participation/expertise provided)?
Sí = 1
Incierto = 0,5
No relevante = 0
No = 0
La evaluación de los criterios de información evalúa la transparencia con la que los autores informan de las características metodológicas y del ensayo dentro de la publicación. La evaluación se divide en cinco categorías que se presentan a continuación.
4/4
Randomization
3/4
Outcome Measurements
4/4
Inclusion / Exclusion
4/4
Therapy Description
4/4
Statistics
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
El Índice de Fragilidad es una herramienta que ayuda en la interpretación de hallazgos significativos, proporcionando una medida de fuerza para un resultado. El Índice de Fragilidad representa el número de eventos consecutivos que es necesario añadir a un resultado dicotómico para que el hallazgo deje de ser significativo. Un número pequeño representa un hallazgo más débil y un número grande un hallazgo más fuerte.
¿Por qué se necesitaba ahora este estudio?
The varying types of femoral stem coatings used for total hip arthroplasty have been investigated in studies to determine implant migration and rotation. This study aims to further investigate the outcomes with respect to extended coating versus proximal coating.
¿Cuál era la pregunta principal de la investigación?
Does an extended coated stem lead to reduced implant migration two years postoperatively, when compared to a proximally coated stem in patients undergoing total hip arthroplasty for primary osteoarthritis?
- no statistically significant difference during RSA assessment with respect to rotation or translation detected between groups at any of the follow-up points
- implant migration of both groups was significant from initial postoperative measurements
¿Qué es lo que más debo recordar?
Both implant stem groups demonstrated significant migration in comparison to baseline measures; however, no statistically significant difference was detected between the groups. The authors recommend that additional follow-ups are required in future trials.
¿Cómo afectará esto al cuidado de mis pacientes?
Both implants demonstrate significant migration,which warrants further investigation; however, this trial was unable to conclude which coating is superior. Additionally, the authors cite this study as an evidence for the necessity of RSA, as standard protocol to monitor all new implants.
DESCARGO DE RESPONSABILIDAD
El contenido de esta página tiene únicamente fines informativos y no pretende sustituir el consejo, diagnóstico o tratamiento médico profesional. Si necesita tratamiento médico, busque siempre el consejo de su médico o acuda al servicio de urgencias más cercano. Las opiniones, creencias y puntos de vista expresados por las personas sobre el contenido que se encuentra en esta página no reflejan las opiniones, creencias y puntos de vista de OrthoEvidence.
0 de 4 artículos mensuales GRATIS desbloqueados
