Quiste de Baker / Baker's cyst

Fundamento: el quiste de Baker es el tumor de partes blandas más frecuente de la fosa poplítea, su tratamiento puede ser conservador o quirúrgico, este último tanto por vía artroscópica o abierta. Objetivo:profundizar los conocimientos en relación al quiste de Baker en la articulación de la rodilla. Métodos: la búsqueda de la información se realizó en un periodo de tres meses (primero de octubre de 2017 al 31 de diciembre de 2017) y se emplearon las siguientes palabras: popliteal cyst y Baker's cyst, a partir de la información obtenida se realizó una revisión bibliográfica de un total de 316 artículos publicados en las bases de datos PubMed, Hinari, SciELO y Medline mediante el gestor de búsqueda y administrador de referencias EndNote, de ellos se utilizaron 50 citas seleccionadas para realizar la revisión, 45 de ellas de los últimos cinco años, donde se incluyeron cuatro libros. Resultados: se abordan la forma de presentación clínica de esta enfermedad y los estudios de tipo imaginológicos. Se hace referencia al diagnóstico diferencial entre el niño y el adulto; y entre el quiste de Baker y aneurisma de la arteria poplítea. Se describen las modalidades de tratamiento tanto conservador como quirúrgico, en relación a este último se plasman las indicaciones y variedades. Conclusiones: el quiste de Baker es el tumor de partes blandas más frecuente en la fosa poplítea, su presencia ocurre tanto en niños como en adultos y existen diferencias entre estos grupos. En el adulto se debe prestar especial interés con respecto al diagnóstico diferencial con el aneurisma de la arteria poplítea. El tratamiento en el paciente adulto por lo general es quirúrgico, tanto por vía abierta o artroscópica con muy buenos resultados(AU)

Background: Baker's cyst is the most common soft tissue popliteal tumor; treatment may be conservative or surgical by arthroscopy or open ways. Objective: to deep the knowledge about Baker's cyst in the knee joint. Methods: the search of the information was carried out in a period of three months (from October 1st, 2017 to December 31, 2017) and the following words were used: popliteal cyst and Baker's cyst, from the obtained information it was carried out a bibliographical review of a whole of 316 articles published in the databases PubMed, Hinari, SciELO and Medline by means of the information locator EndNote, of them 50 citations were selected to do the review, 45 of them of last five years, where four books were included.Development: important aspects related to clinical picture and imaging investigations were pointed out. Differential diagnosis between Baker's cyst in children and adults, and Baker's cyst and popliteal aneurysm were described. Treatment modalities were stated as well as surgical indications.Conclusions: Baker's cyst is the most common soft tissue popliteal tumor affecting children and adults with cardinal differences. Popliteal aneurysm should be always ruled out. Surgical treatment is usually needed in adults by open procedures or arthroscopy, both methods have good results(AU)

Popliteal cysts in adults. Prevalence, associated intraarticular lesions, and results after arthroscopic treatment.

The objective of this prospective study was to determine the prevalence of popliteal cysts and the associated intraarticular lesions in a group of 100 patients scheduled for arthroscopic surgery of the knee and to evaluate the results of arthroscopic treatment for these intraarticular lesions without removal of the cyst. One hundred patients without any knee complaints served as a control group. The diagnosis of a popliteal cyst was made on the basis of ultrasonography. The prevalence of popliteal cysts was 20% in the study group and 0% in the control group. Patients with a popliteal cyst had a significantly higher prevalence of medial meniscal tears (70% versus 19%) and of chondral lesions (85% versus 28%). Tears of the lateral meniscus, however, were more evenly distributed (20% versus 36%). Sixteen of 20 patients with a popliteal cyst were available for a follow-up examination 1 to 3 years after the arthroscopic procedure. Eleven popliteal cysts had persisted. Chondral lesions were the most relevant prognostic factor; all patients with persisting cysts had grade III or grade IV lesions. We conclude that the popliteal cyst is a secondary phenomenon and that treatment should address the underlying intraarticular lesions. In cases of osteoarthritis it may be impossible to treat the chondral lesion successfully in terms of eliminating the effusion.