Bone tumors are pathologies resulting from modifications in the bone structure and its content, they can present as benign or malignant, primitive or metastatic tumor lesions, depending on various factors: age of presentation, location, growth rate, periosteal reaction and infiltration to neighboring structures. The publications show that small, asymptomatic and small bone cysts do not require treatment, up to 25% are spontaneous resolution after a pathological fracture; while larger cysts with thin bark require some type of intervention.The case of a 17-year-old female patient is presented, who presents for presenting moderate intensity pain in the left heel that intensifies on ambulation, with a time of 2 months of evolution, after a blunt trauma in this region. On physical examination, pain from the pressure digit and active-passive mobilization maneuvers were evidenced on the external lateral aspect at the calcaneus level of the left foot. A simple lateral radiograph of the left calcaneus was performed, showing a 3 by 3 cm circular lytic lesion involving the anteroinferior region of the calcaneus.In conclusion, simple or solitary bone cyst is a benign pathology that, although it does not endanger the person’s life, can seriously affect the functionality of the foot. Currently, there is no standardized treatment for the management of this pathology, current surgical techniques, especially curettage and bone autograft are very promising.
The lateral collateral ligament (LCL), which is part of the knee stabilizers, constitutes an important structure within the posterolateral complex of the same (CPL), which restricts the varus, in the flexion angles of this, especially at 30°, in addition to controlling external rotation. Lesions that affect this complex are infrequent, etiologically between 50-90% are associated with other ligamentous injuries with a predominance of 60% damage to the posterior cruciate ligament. The Larson technique is based on the reconstruction of the LCL and the popliteal complex, using a single proximal insertion in the femoral epicondyle.We present the case of a 28-year-old male patient, with no medical history, who attended due to a forced varus of the limb while performing sports activity and after receiving a direct impact on the internal lateral region of the right calf, after which he presented pain to passive movements and inability to ambulation. In addition, he presents ecchymosis, edema, superficial abrasions on the external lateral aspect and pain on acupressure in the course of the external collateral ligament. A knee examination maneuvers: positive varus yawn sign, positive patellar brushing, positive patella hyperpressure, functional limitation to flexion and extension of the joint.This modified Larson technique turns out to be one of the most promising due to its various characteristics, as the least demanding and at the same time providing encouraging results. This procedure is based on the reconstruction of the LCL and the popliteal tendon (PT) as a whole, thus summarizing the reconstruction of the Peroneal Popliteal Ligament (LPP) as a static stabilizer of the PT, with its insertion at the level of the head of the fibula in conjunction with the of the LCL and the restitution of both attachments in the femoral epicondyle, taking into account the morphology of the fibula and the angles of movement of the knee.
El estado de emergencia sanitaria por el virus SARS-CoV- 2 ha incrementado la demanda del uso de mascarillas, las que forman parte de los materiales de bioseguridad y contribuyen a disminuir el riesgo de la propagación de enfermedades través de gotitas respiratorias, es por tal motivo la Organización Mundial de la Salud recomienda el uso de la mascarilla durante la pandemia por COVID-19. Objetivos: El presente artículo tiene como objetivo general determinar la variabilidad de la saturación de oxígeno con y sin el uso de mascarilla en el personal sanitario del Hospital General Ambato-IESS. Metodología: Es un estudio observacional descriptivo prospectivo de cohorte transversal. Se realizará la medición de la saturación de oxígeno por medio del Monitor EDAN M3 en el personal sanitario del HGA-IESS bajo consentimiento informado, en quienes utilizan mascarilla durante la pandemia. El análisis estadístico se lo realizó con el método de tablas cruzadas con el objetivo de comparar las variables independientes con la dependiente, el IC es del 95% y con un valor p menor a 0.05 para que muestre significancia. Resultados: De 129 objetos de estudio el grupo de edad representativo y significativo según p<0.05 es menor de 33 años en un rango de 24 a 32 años de edad; el género femenino prevalece 2 a 1 sobre el masculino, el tipo de mascarilla más utilizada es la N95 en 59.7%, la variabilidad de saturación de la población de estudio con y sin mascarilla es mayor en hombres que en mujeres, reflejando una diferencia de 1.2 y 0.9 respectivamente (p=0.02 y p=0.01). Conclusiones: La variabilidad de saturación con o sin el uso de mascarilla representa mínimos cambios, en este grupo de estudio, pues en hombres y mujeres existe la misma tendencia, es decir a elevar la SPO2, aunque en proporciones mínimas.
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