RESUMO

There are a growing number of small children-as well as adults-with mental disabilities (including elderly citizens with Alzheimer's disease or other forms of age-related dementia) that are getting lost in rural and urban areas for various reasons. Establishing their location within the first 72 h is crucial because lost people are exposed to all kinds of adverse conditions and in the case of the elderly, this is further aggravated if prescribed medication is needed. Herein we describe a non-invasive, low-cost electronic device that operates constantly, keeping track of time, the geographical location and the identification of the subject using it. The prototype was made using commercial low-cost electronic components. This electronic device shows high connectivity in open and closed areas and identifies the geographical location of a lost subject. We freely provide the software and technical diagrams of the prototypes.

RESUMO

Introducción: la RMN ha demostrado influir significativamente en el diagnóstico del patrón de las lesiones completas del manguito rotador con una elevada sensibilidad y especificidad siendo el método complementario más utilizado. Nuestro objetivo es determinar la eficacia diagnóstica, y la variabilidad interobservador de la RMN para diagnosticar la forma de las lesiones completas del manguito rotador. Materiales y métodos: Se evaluaron 33 RMN de pacientes con rupturas completas de manguito rotador de manera prospectiva. Los patrones de lesiones analizados fueron crescéntica, L anterior, L posterior, lesión en U y masiva retraída. Dos especialistas en cirugía de hombro (O1 y O2) y el fellow de último año (O3) analizaron las RMN en días previos a la cirugía. Se utilizo el diagnostico artroscópico como gold standard y se calculó la concordancia entre las imágenes y la artroscopia con el índice kappa. Resultados: Para el diagnóstico del patrón de lesión obtuvo una concordancia excelente el O1, moderada el O3 y buena el O2. La ruptura crescéntica fue la mejor diagnosticada por los 3 observadores Conclusión: La RMN tiene una elevada sensibilidad y especificidad para el diagnóstico de los patrones de ruptura de manguito rotador teniendo relación con la experiencia de los observadores. Tipo de estudio: Prospectivo. Nivel de evidencia: I.

Introduction: MRI has been shown to have a significant influence on the diagnosis of complete rotator cuff tear pattern with an improved sensitivity and specificity being the most useful complementary method. Our purpose is to determine the accuracy and the interobserver variability of MRI to diagnose tear pattern of complete rotator cuff lesion. Methods: 33 patients MRI with complete rotator cuff tear were evaluated prospectively. The pattern lesions analyzed were crescent, anterior and posterior L shape tears, U pattern and massive tears. Two shoulder surgeons (O1 y O2) and one shoulder fellow (O3) analyzed the MRI´s days previous to surgery. The arthroscopic diagnosis was used as gold standard and the concordance between the images and arthroscopy was calculated with kappa index. Results: The concordance was excellent for observer 1, moderate for observer 3 and good for the observer 2 for the diagnosis of rotator cuff tear pattern. The crescent tear was the best diagnosed by the three observers. Conclusion: MRI has high sensitivity and specificity for the diagnosis of rotator cutt tear pattern in relation to the experience of the observers. Type of Study: Prospective. Level of Evidence: I.

Assuntos

RESUMO

La condromatosis sinovial es una entidad patológica poco frecuente donde se desarrollan cuerpos de aspectos cartilaginosos a partir de la membrana sinovial de articulaciones, bursas o vainas tendinosas, generando cuerpos libres productores de la sintomatología. Presentamos un caso de 16 años que consulta con dolor de hombro derecho, progresivo sin antecedente de trauma previo, de 3 años de evolución. Se realizan estudios imagenológicos correspondientes llegando a la conclusión diagnostica de condromatosis sinovial de hombro. Se realiza el tratamiento quirúrgico definitivo por artroscopía, logrando remisión de los síntomas y evolución favorable sin recidiva hasta los 5 años de evolucion.

Synovial chondromatosis is a rare pathological entity where cartilaginous aspects develop from the synovial membrane of joints, bursae or tendinous sheaths, generating free bodies that produce symptoms. We present a 16-year-old male with 3 years of right shoulder pain, progressive with not previous trauma. Imaging studies are carried out, arriving at the diagnostic of synovial chondromatosis of the shoulder. The final surgical treatment is performed by arthroscopy, achieving remission of symptoms and favorable evolution without recurrence until 5 years of evolution.

Assuntos