ABSTRACT
El osteoma osteoide es una lesión ósea benigna que, habitualmente, se acompaña de clínica típica caracterizada por dolor nocturno que mejora con antiinflamatorios no esteroideos. Aunque la presentación clínica es típica, con frecuencia, es común la demora diagnóstica, en especial, en los casos con localización atípica.Se presenta el caso de una paciente de 10 años con dolor en la muñeca izquierda de dos años de evolución con diagnóstico de osteoma osteoide localizado en el hueso grande del carpo. La localización atípica de la lesión conllevó un retraso diagnóstico importante
Osteoid osteoma is a benign bone lesion that is usually accompanied by a typical clinical condition characterized by night pain that improves with non-steroidal anti-inflammatory drugs. Although the clinical presentation is frequently typical, diagnostic delay is common, especially in cases with an atypical location.We report the case of a 10-year-old patient with left wrist pain of two years of evolution with diagnosis of osteoid osteoma located in capitate bone. The atypical location of the lesion led to a significant diagnostic delay.
Subject(s)
Humans , Female , Child , Osteoma, Osteoid/diagnostic imaging , Osteoma, Osteoid/surgery , Wrist , Curettage , Capitate BoneABSTRACT
Background: A review of the relevant literature showed that previous descriptions of scaphoid were not detailedenough to match our present clinical knowledge or the requirements of modern imaging especially in the NorthIndian population. With this in mind a study was conducted on 50 dry cadaveric scaphoids of North Indianorigin.Material and Methods: The study was performed on 50 dry human scaphoid bones of the North Indian population.Various morphological and morphometric parameters were observed and measured using vernier callipers, anon-stretchable thread, centimetre scales and a protractor.Results: All the morphological parameters studied were present in all the 50 bones except the sulcus for flexorcarpi radialis that was absent in 12 and the ridge for the scapho-capitate interosseous ligament that was absentin 13 bones. The tubercle was conical in 36, pyramidal in 13 and round in the remaining 1 bone. The maximallength of scaphoid and the thickness of waist were significantly higher on the right side. 30 bones had equallydeveloped, 10 bones had under developed proximal while the remaining 10 bones had under developed distalpole. The average value of anteroposterior intra scaphoid angle of 50 scaphoid was found to be 39.20+6.420.Clinical significance: The data obtained in the present study will be helpful for the hand surgeons, radiologists,morphologists and clinical anatomists
ABSTRACT
@#Introduction:Carpal collapse of wrist occurs in disorders like rheumatoid arthritis and Kienbock's disease. Three techniques have been described to measure carpal collapse. First, the carpal height ratio (CHR), measured by dividing carpal height by 3rd metacarpal length. Second, the revised carpal height ratio (RCH ratio), measured by dividing carpal height by length of capitate. Third, capitate radius distance (CR index), measured by shortest distance between distal edge of radius and the proximal edge of capitate. The index publications describe good reliability of all these but which method out of the three is best in terms of intra- and inter-observer variability is not known. The purpose of this study was to find out which method had the least inter- and intra-observer variability for determining carpal collapse. Materials and Methods: Fifty normal wrist postero-anterior radiographs were studied by three assessors who measured CHR, RCH ratio and CR index separately. The measurements were repeated after one month by all the three observers. The results were then statistically analysed. Results: The p-value was <0.001 in all the three assessors in CR index meaning that the intra-observer variability was least in CR index. For the inter-observer variability intra class coefficient of 0.9 indicated that the CR index has the least variability. Conclusion: CR index is the most reproducible method to measure carpal collapse. The method which provides accurate measurement of carpal collapse will allow better staging of carpal disorders.
ABSTRACT
Most capitate fractures occur in association with additional carpal injuries, particularly scaphoid fractures. Isolated fractures of the capitate account for only 0.3% of carpal injuries, and stress fractures are one form of this fracture. We report the case of a 20-year-old male who had a stress fracture of the capitate after serving as an honor guard in the military. Conventional radiographs and computed tomography of the right wrist revealed a minimally displaced fracture line located at the midcarpal aspect of the right capitate. A magnetic resonance imaging scan demonstrates a subarticular capitate fracture with diffuse bone marrow edema, small osteophytes, and irregularity of the midcarpal articular cartilage. We also review the carpal kinematics which possibly caused the stress fracture. Although stress fractures of the capitate are rare, they should also be accounted for with patients who perform repetitive motions of the wrist to a considerable extent.
Subject(s)
Humans , Male , Young Adult , Biomechanical Phenomena , Bone Marrow , Capitate Bone , Carpal Bones , Cartilage, Articular , Edema , Fractures, Stress , Magnetic Resonance Imaging , Military Personnel , Multidetector Computed Tomography , Osteophyte , WristABSTRACT
Plant structures that secrete lipids and phenolic compounds are often associated with the protection and development of organs against desiccation, in addition to the protection they provide against animals, as the capitate trichomes of Adenocalymma magnificum. Understanding the glandular activities that occur in these trichomes has required the study of their ontogeny, structure, ultrastructure and histochemical aspects; the interpretation of their ecological functions or evolutionary history is complicated by the scarcity of reports on calicinal trichomes that are not nectar-secreting. Samples of floral calyx in anthesis and flower buds at different stages of development were fixed and processed according to the methods for light and electron microscopy. The trichomes are randomly distributed throughout the entire inner surface of the calyx and are also visible on the flower buds. These capitate glandular trichomes were composed of a peduncle, having up to nine cells, and a multicellular secretory head with their cells in columnar format and arranged in disc form. The collar cell, which is under the secretory head, divides anticlinally and arranges itself side by side with the mother cell. As they develop, they bend with some of them becoming adpressed to the calyx. Histochemical tests indicate that the secretory head cells produce lipid substances, acidic lipids and phenolic compounds. In the secretory head, the vacuome is dispersed and the cytoplasm possesses a great number of smooth endoplasmic reticulum and leucoplasts, organelles involved in the production of osmiophilic substances. In some regions of the secretory cells, cuticle detachment was observed; however, the accumulation of secretions was not observed. This study describes, for the first time, the origin, development, and secretion process of the calicinal trichomes of Adenocalymma magnificum, showing that production of lipophilic substances is important for this plant, possibly the trichomes may be involved in the plants chemical defense against insects, offering protection against herbivores. Rev. Biol. Trop. 63 (2): 537-544. Epub 2015 June 01.
Las estructuras que secretan lípidos y compuestos fenólicos estan frecuentemente asociadas a la protección y desarrollo de órganos que protegen contra la desecación, además de la protección que estas proporcionan contra el ataque de animales. Los tricomas capitados de Adenocalymma magnificum son estructuras de este tipo. Para comprender las actividades glandulares que ocurren en estos tricomas es necesario estudiar su ontogenia, estructura, ultraestructura y aspectos histoquímicos. La interpretación de sus funciones ecológicas o historia evolutiva es compleja, y pocos son los estudios que se enfocan en los tricomas calicinales no secretores de néctar. Las muestras del cáliz floral en antesis y botones florales en diferentes estadios de desarrollo fueron fijadas y procesadas de acuerdo con los métodos para microscopia de luz y electrónicos. Los tricomas de A. magnificum están aleatoriamente distribuidos en toda la extensión de la superficie interna del cáliz, también observados en los botones florales. Estos tricomas son glandulares capitados, compuestos de un pedúnculo largo que posee hasta nueve células y una cabeza secretora multicelular, con células en columnares dispuestas en disco. La célula del collar, que esta sobre las células de la cabeza secretora, se divide anticlinalmente organizándose lado a lado con las células madre. Con el crecimiento de los tricomas, estos mismos se curvan y algunos quedan adpresos al cáliz. Las pruebas histoquímicas indicaron que las células de la cabeza secretora producen sustancias lipídicas, lípidos ácidos y compuestos fenólicos. En la cabeza secretora la vacuoma esta dispersa y posee abundante retículo endoplasmático liso y leucoplastos, los cuales son organelos involucrados en el proceso de producción de sustancias osmiofílicas. En algunas regiones de las células secretoras la distensión de la cutícula fue observada, sin embargo, no fue verificada la acumulación de secreción. Este trabajo describe por primera vez el origen, desarrollo y proceso de secreción de tricomas calicinales de A. magnificum, mostrando que la producción de substancias lipofílicas es importante para esta especie, ofreciendo posiblemente protección contra la herbivoría.
Subject(s)
Bignoniaceae/anatomy & histology , Phenolic Compounds/analysis , Trichomes/classificationABSTRACT
An osteoid osteoma is a benign bone tumor. It is most commonly found in the femur and tibia but only 5% to 15% occurs in hand. Osteoid osteoma of carpal bone has vague nature of symptoms including spontaneous dull aching causing delayed diagnosis and the late treatment. We had a patient with an osteoid osteoma of the capitate bone presenting with tenosynovitis. We present clinical and radiological findings including magnetic resonance imaging, surgical result, and a review of the current literature.
Subject(s)
Humans , Bone Neoplasms , Capitate Bone , Carpal Bones , Delayed Diagnosis , Femur , Hand , Magnetic Resonance Imaging , Osteoma, Osteoid , Tenosynovitis , TibiaABSTRACT
Se describe el caso de un paciente con caída de altura que presenta fractura del escafoides y del polo proximal del capitate, con luxación proximal del fragmento distal, una patología poco frecuente. Se hace también una revisión de la literatura sobre el tema, como soporte para el manejo de este síndrome...
This is the case of a patient after a fall from a height, who presented with a fracture of the escafoides and the proximal pole pf the capitate bone, with proximal luxation of the distal fragment, very infrequent pathology. There is a review of the literature to support the management of this syndrome...
Descreve-se o caso de um paciente com queda de altura que apresenta fratura do escafóides e do pólo proximal do capitate, com luxação proximal do fragmento distal, uma patologia pouco freqüente. Faz-se também uma revisão da literatura sobre o tema, como suporte para o manejo desta síndrome...
Subject(s)
Male , Humans , Adult , Scaphoid Bone/injuries , Scaphoid BoneABSTRACT
Idiopathic avascular necrosis of the capitate is a very rare condition. Only 7 cases have been reported until 2002 in the literature since the lesion was originally described by Jonsson in 1942. The incidence of the injury has not been documented and no report has been issued in Korea. The author experienced one case of idiopathic capitate avascular necrosis which was treated by curettage and autoiliac bone graft.
Subject(s)
Curettage , Incidence , Korea , Necrosis , TransplantsABSTRACT
Solitary bone cyst are usually found in the juxta-epiphyseal region of metaphysis of long bones of children. They are rarely seen in non-tubular bones. The following case describes what we believe to be a solitary cyst of the capitate. Cyst was treated by radical curettage and packing with autogenous iliac bone. The most recent evaluation 7 months after surgery showed no discomfort.