¿Pueden influir las variables epidemiológicas el resultado a los 2 años de una cirugía por enfermedad lumbar degenerativa en términos de calidad de vida, discapacidad y dolor postoperatorio? / Can epidemiological factors affect the 2-year outcomes after surgery for degenerative lumbar disease in terms of quality of life, disability and post-surgical pain?

Objetivo: Evaluar si los factores epidemiológicos afectan a los resultados de la cirugía por enfermedad lumbar degenerativa en términos de calidad de vida, discapacidad y dolor crónico. Material y método: Doscientos sesenta y tres pacientes intervenidos por afección lumbar degenerativa fueron incluidos en el estudio (2005-2008). Variables epidemiológicas: edad, género, situación laboral y comorbilidad. Se completaron en el preoperatorio y 2 años tras la cirugía el Medical Outcomes Study Short Form-36 version 2, Oswestry Disability Index (ODI), Core Outcomes Measures Index (COMI) y EVA para dolor lumbar y ciático. En el análisis de los datos, se evaluó la correlación entre variables epidemiológicas y el cambio en los resultados de los cuestionarios, así como, la existencia de factores pronósticos independientes. Resultados: Edad media 54,00 años (22-86); 131 mujeres (49,8%); 42 pérdidas de seguimiento (16%). Se observaron correlaciones significativas (p < 0,05) entre la edad, el género, la comorbilidad, la incapacidad laboral permanente y el dolor preoperatorio con el cambio del ODI, el COMI, los componentes de salud física y mental y las EVA de lumbar y ciático. El análisis de regresión lineal muestra a las ILP y la edad como variables predictoras del cambio de la discapacidad (β = 14,146; IC del 95%, 9,09-29,58; p < 0,01, y β = 0,334; IC del 95%, 0,40-0,98, p < 0,05, respectivamente) y de la calidad de vida (β = −8,568; IC del 95%, −14,88, −2,26; p < 0,01 y β = −0,228, IC del 95%, −0,40, −0,06, p < 0,05, respectivamente). Conclusión: Según nuestros resultados, hemos de considerar al aumento de la edad y la incapacidad laboral permanente como factores epidemiológicos predictores negativos de los resultados tras cirugía por patología lumbar degenerativa (AU)

Purpose: To evaluate the influence of epidemiological factors on the outcomes of surgery for degenerative lumbar disease in terms of quality of life, disability and chronic pain. Material and method: A total of 263 patients who received surgery for degenerative lumbar disease (2005-2008) were included in the study. The epidemiological data collected were age, gender, employment status, and co-morbidity. The SF-36, Oswestry Disability Index (ODI), Core Outcomes Measures Index (COMI), and VAS score for lumbar and sciatic pain were measure before and 2 years after surgery. The correlation between epidemiological data and questionnaire results, as well as any independent prognostic factors, were assessed in the data analysis. Results: The mean age of the patients was 54.0 years (22-86), and 131 were female (49.8%). There were 42 (16%) lost to follow-up. Statistically significant correlations (P < 0.05) were observed between age, gender, co-morbidity, permanent sick leave, and pre-operative pain with changes in the ODI, COMI, physical and SF-36 mental scales, and lumbar and sciatic VAS. Linear regression analysis showed permanent sick leave and age as predictive factors of disability (β = 14.146; 95% CI : 9.09-29.58; P < 0.01 and β = 0.334; 95% CI: 0.40-0.98, P < 0.05, respectively), and change in quality of life (β = −8.568; 95% CI: −14.88 to −2.26; P < 0.01 and β = −0.228, 95% CI: −0.40 to −0.06, P < 0.05, respectively). Conclusion: Based on our findings, age and permanent sick leave have to be considered as negative epidemiologic predictive factors of the outcome of degenerative lumbar disease surgery (AU)

[Can epidemiological factors affect the 2-year outcomes after surgery for degenerative lumbar disease in terms of quality of life, disability and post-surgical pain?]. / Pueden influir las variables epidemiológicas el resultado a los 2 años de una cirugía por enfermedad lumbar degenerativa en términos de calidad de vida, discapacidad y dolor postoperatorio?

PURPOSE: To evaluate the influence of epidemiological factors on the outcomes of surgery for degenerative lumbar disease in terms of quality of life, disability and chronic pain. MATERIAL AND METHOD: A total of 263 patients who received surgery for degenerative lumbar disease (2005-2008) were included in the study. The epidemiological data collected were age, gender, employment status, and co-morbidity. The SF-36, Oswestry Disability Index (ODI), Core Outcomes Measures Index (COMI), and VAS score for lumbar and sciatic pain were measure before and 2 years after surgery. The correlation between epidemiological data and questionnaire results, as well as any independent prognostic factors, were assessed in the data analysis. RESULTS: The mean age of the patients was 54.0 years (22-86), and 131 were female (49.8%). There were 42 (16%) lost to follow-up. Statistically significant correlations (P<.05) were observed between age, gender, co-morbidity, permanent sick leave, and pre-operative pain with changes in the ODI, COMI, physical and SF-36 mental scales, and lumbar and sciatic VAS. Linear regression analysis showed permanent sick leave and age as predictive factors of disability (ß=14.146; 95% CI: 9.09 - 29.58; P<.01 and ß=0.334; 95% CI: 0.40 - 0.98, P<.05, respectively), and change in quality of life (ß=-8.568; 95% CI: -14.88 - -2.26; p<.01 and ß=-0.228, IC 95% CI: -0.40 - -0.06, P<.05, respectively). CONCLUSION: Based on our findings, age and permanent sick leave have to be considered as negative epidemiologic predictive factors of the outcome of degenerative lumbar disease surgery.