RESUMO
BACKGROUND: Spine surgery has evolved at an accelerated pace, allowing the development of more efficient surgical techniques while providing a decreasing rate of morbimortality. One example of these approaches is the anterior lumbar interbody fusion (ALIF). The aim of this study was to evaluate the surgical complication rate when performing ALIF without the help of a vascular "access" surgeon. METHODS: A retrospective descriptive study was conducted at the Hospital Universitario San Ignacio between 2014 and 2018 and included all patients who underwent ALIF during this time. A nonsystematic review was performed assessing approach-related complications in ALIF and the impact of "access" surgeons in surgical outcomes. RESULTS: A total of 337 patients were included and 508 levels were fused. ALIF was performed as ALIF-360° (27%), ALIF-lateral lumbar interbody fusion (LLIF) (8.9%), and stand-alone ALIF (62%). Most procedures were single-level fusions (51.9%), 45.4% involved 2 levels, and 2.6% were 3-level fusions. The mortality rate was 0%, and only 9 cases of vascular injury were observed and described. Left and common iliac veins were the predominant affected structures. Only a single case required blood transfusion without any other treatment or intensive care unit surveillance. CONCLUSIONS: Our study is consistent with literature reports about ALIF complications, finding an incidence of 1.7%. Therefore, ALIF is an excellent alternative for spine procedures, especially for the levels L5-S1 that require sagittal balance restoration. The approaches were performed without a vascular "access" surgeon and presented complication rates similar to those described in the literature.
RESUMO
INTRODUCCIÓN: La importancia del manejo del dolor lumbar radica en su recurrencia y en las manifestaciones tanto para el paciente como para la sociedad. Se hace necesario establecer qué factores llevan al éxito en términos de dolor y funcionalidad al momento de realizarse una artrodesis lumbar. MATERIALES Y MÉTODOS: Se realizó un estudio descriptivo retrospectivo que buscó determinar qué parámetros espinopélvicos de balance sagital y sus valores en términos de incidencia pélvica (PI), inclinación pélvica (PT), inclinación sacra, lordosis lumbar (LL), eje sagital vertical (SVA) y la diferencia entre la PI y LL (PI-LL), pueden tener una potencial relación con desenlaces posquirúrgicos favorables. Se incluyeron 44 pacientes tratados en el Hospital Universitario San Ignacio entre enero de 2016 y diciembre de 2017. Se tomaron en cuenta desenlaces de dolor y funcionalidad en términos la escala visual analógica y el Oswestry Disability Index (ODI). Se realizó un seguimiento prequirúrgico, y 2 posquirúrgicos a los 3 y 6 meses. Debido al tamaño de la muestra, los autores no pudieron encontrar una significancia estadística, sin embargo, los resultados son concordantes con lo publicado anteriormente en el área. RESULTADOS: El mayor cambio porcentual se encontró en el grupo de pacientes que tuvieron una PI-LL > 10° con un aumento del 50 % en el grupo de pacientes con buena funcionalidad (ODI: 0-20). En SVA > 5 cm, el rango de pacientes con una buena funcionalidad tuvo un aumento del 44,6 %. El rango de buena funcionalidad en pacientes con una PT < 20° aumentó 54,1 puntos porcentuales. CONCLUSIONES: En la presente cohorte se encontró que los parámetros radiológicos que condicionaron un mayor cambio porcentual en la funcionalidad de los pacientes después de ser llevados a cirugía de columna fueron: SVA de base > 5 cm y una PI-LL base > 10° y PT < 20°
INTRODUCTION: The importance of lumbar pain management lies in its recurrence and manifestations for both the patient and society. It is necessary to establish what factors lead to success in terms of pain and functionality at the time of a lumbar arthrodesis. MATERIAL AND METHODS: A retrospective descriptive study was conducted that sought to determine which spinopelvic parameters and their values in terms of pelvic incidence (PI), pelvic tilt (PT), sacral slope, lumbar lordosis (LL), sagittal vertical axis (SVA), and mismatch (PI-LL) might have a potential relationship with favorable postoperative outcomes. We included 44 patients who underwent MIS spinal approaches in our center between January 2016 to December 2017. Surgical outcomes of pain and functionality were assessed using visual analogue scale and Oswestry Disability Index (ODI). Follow up was conducted through three evaluations: one before surgical intervention and 2 at 3 and 6 months postop. Due to the sample size, the authors were unable to get statistically significant results. RESULTS: In our descriptive retrospective study on 44 patients, we found a big positive functional change in the group of patients who had a PI-LL > 10° with an increase of 50 percentage points in the group of patients with good functionality (ODI: 0-20). In SVA > 5 cm, the range of patients with good functionality had an increase of 44.6 percentage points. The range of good functionality in patients with a PT < 20° increased 54.1 percentage points. CONCLUSIONS: In the present cohort, it was found that the radiological parameters that conditioned greater percentage change in the functionality of the patients after being taken to spine surgery were SVA of base > 5 cm and a PI-LL base > 10° and PT < 20°
