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1.
Rev. esp. cir. ortop. traumatol. (Ed. impr.) ; 63(5): 321-326, sept.-oct. 2019. tab
Article in Spanish | IBECS | ID: ibc-188922

ABSTRACT

Objetivo: Demostrar si existe diferencia en el tiempo que se prolonga la cirugía para implantar una prótesis de rodilla atendiendo al sistema de instrumentación empleado. Material y método: Análisis retrospectivo de la duración de 243 intervenciones (tiempo piel-piel y tiempo de isquemia) realizadas por el mismo cirujano. Setenta y dos casos intervenidos con instrumental convencional, 68 asistidos por navegador (computer assisted surgery) y 103 con bloques de corte personalizados (personalized instrumentation system [PSI]). Resultados: IC piel-piel 87,85min (DE 11,86). IC isquemia 94,44min (DE 11,49). Computer assisted surgery piel-piel 123,46min (DE 11,27). Computer assisted surgery isquemia 129,63min (DE 11,37). PSI piel-piel 78,69min (DE 13,06). PSI isquemia 84,63 (DE 12,06). Existe una diferencia significativa favorable a PSI respecto a los otros sistemas de instrumentación (p 0,000). Conclusiones: En nuestro estudio, el consumo de tiempo para la implantación de una prótesis de rodilla ha sido significativamente inferior cuando hemos empleado bloques de corte personalizados, que cuando hemos empleado otros sistemas


Objective: To demonstrate if there is a difference in the time that the surgery is prolonged to implant a knee prosthesis according to the instrumentation system used. Material and methods: Retrospective analysis of the duration of 243 interventions (skin-to-skin time and ischemia time) performed by the same surgeon. Seventy-two cases operated with conventional instruments (IC), 68 by means of computer assisted surgery (CAS) and 103 with personalized instrumentation system (PSI). Results: IC skin-to-skin time 87,85 min (SD 11,86). IC ischemia time 94,44 min (SD 11,49). Computer assisted surgery skin-to-skin time 123,46 min (SD 11,27). Computer assisted surgery ischemia time 129,63 min (SD 11,37). PSI skin-to-skin time 78,69 min (SD 13,06). PSI ischemia time 84,63 min (SD 12,06). There is a significant difference between PSI and the other instrumentation systems (p 0,000). Conclusions: In our study, the time consumption for the implantation of a knee prosthesis has been significantly lower when cutting blocks have been used, than when we have used other systems


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Arthroplasty, Replacement, Knee/instrumentation , Knee Prosthesis , Operative Time , Osteoarthritis, Knee/surgery , Surgery, Computer-Assisted/instrumentation , Arthroplasty, Replacement, Knee/methods , Surgery, Computer-Assisted/methods , Treatment Outcome , Retrospective Studies
2.
Rev. esp. cir. ortop. traumatol. (Ed. impr.) ; 62(5): 359-364, sept.-oct. 2018. tab
Article in Spanish | IBECS | ID: ibc-177657

ABSTRACT

Objetivos: Evaluar de forma no invasiva la lesión tisular secundaria a la isquemia aplicada durante la cirugía sustitutiva de rodilla. Objetivos secundarios: evaluar si dicha lesión se correlaciona con el tiempo que se prolonga la isquemia y la influencia de las variables instrumental y sexo. Material y método: Estudio de cohortes prospectivo. Se han determinado los niveles pre- y postoperatorios de lactato sérico, como indicador de actividad glucolítica secundaria a isquemia, en 88 pacientes. Se han empleado tiras reactivas de detección enzimático-amperométrica sobre sangre capilar. Resultados: Niveles preoperatorios de lactato sérico (media y DE): 2,467±1,036 mmol/L. Niveles postoperatorios de lactato sérico: 3,938±2,018 mmol/L. Tiempo de isquemia 102,98±18,25min. Los niveles postoperatorios de lactato sérico han sido significativamente mayores que los preoperatorios. No existen diferencias atendiendo a las variables tiempo que se prolonga la isquemia, sexo o tipo de instrumentación empleada. Conclusiones: En nuestro estudio, los valores de lactato sérico postoperatorios han sido significativamente mayores que los preoperatorios, sin una correlación con el tiempo que se ha prolongado la isquemia durante la cirugía sustitutiva de rodilla


Objectives: To non-invasively assess tissue lesion secondary to ischaemia applied during knee replacement surgery. Secondary objectives: to assess whether this lesion correlates with the duration of ischaemia and whether instrumental and gender variables influence it. Material and methods: Prospective cohort study. Pre and postoperative serum lactate levels have been determined as an indicator of glycolytic activity secondary to ischaemia in 88 patients. Serum lactate determination was performed by reactive strips of enzymatic-amperometric detection on capillary blood. Results: Preoperative serum lactate levels (mean and SD): 2.467±1.036 mmol/L. Postoperative serum lactate levels: 3.938±2.018 mmol/L. Ischaemia time 102.98±18.25minutes. Postoperative serum lactate levels were significantly higher than preoperative lactate levels. There are no statistical differences according to the time that the ischaemia was prolonged, gender or type of instrumentation used. Conclusions: In our study, postoperative serum lactate values were significantly higher than preoperative lactate values, with no correlation to the duration of ischaemia during knee replacement surgery


Subject(s)
Humans , Reperfusion Injury/prevention & control , Ischemic Preconditioning/methods , Ischemic Postconditioning/methods , Arthroplasty, Replacement, Knee/methods , Prospective Studies , Glycolysis/physiology , Monitoring, Intraoperative/methods , Lactic Acid/blood , Operative Time , Tourniquets
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