The supporting role of the teres major muscle, an additional component in glenohumeral stability? An anatomical and radiological study.

Muscle coordination plays an important role in glenohumeral stability. The rotator cuff and the long head of the biceps are considered the primary dynamic stabilizers muscles. However, the fact that a subgroup of patients with a massive tear in the rotator cuff were able to keep a normal function, should make us question this traditional view. We hypothesize that the teres major which is also a monoarticular scapulohumeral muscle, although it is not part of the conjoined tendon of the rotator cuff, can play a role in glenohumeral stability by a direct support of the humeral head generated by the particular posteroanterior location of this muscle under the humeral head and which, as far as we know, has not been written up previously. This particular effect could appear while the arm is being lifted and the humeral head could be leaning on against the teres major muscle belly underneath it. An anatomical a radiological study was carried out to substantiate our hypothesis. Two cadaver specimens were used for the anatomical study. Frist body was studied through conventional dissection. The second body was analysed through sectional anatomy. Then a radiological study was carried out using magnetic resonance imaging in a healthy male volunteer. Both anatomically and radiologically, the anteroinferior surface of the humeral head was showed firmly resting against the muscle belly of the teres major, to the point of misshaping it from 110 degrees of arm elevation with external rotation. The specific contribution of this effect to the glenohumeral stability needs to be confirmed by further studies and can help us to prevent the high incidence of glenohumeral dislocations.

Humanidades en RADIOLOGÍA / Humanities in Radiología

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Celedonio Calatayud Costa y el nacimiento de la especialidad, la Sociedad Española de Radiología Médica y la revista: el comienzo de un siglo de Radiología española / Celedonio Calatayud-Costa and the birth of the specialty, the Spanish Society of Medical Radiology, and the journal: the beginning of a century of Spanish Radiology

El Dr. Celedonio Calatayud Costa, eminente radiólogo español, electrotécnico, investigador y cofundador de la Sociedad Española de Electrología y Radiología Médica, fue también el fundador de la Revista Española de Electrología y Radiología Médica. La revista, la primera específicamente dedicada a la incipiente especialidad de la electrología, de la que después se desarrollará la radiología, fue la publicación oficial de aquella Sociedad primordial y, por lo tanto, la primera antecesora de Radiología, hoy revista oficial de la Sociedad Española de Radiología Médica. Este artículo analiza la figura del Dr. Calatayud, partiendo de la escasa información que de él se dispone, en el centenario de la edición de su revista. Criticado por algunos, destacada su figura y labor por otros, se trata de una figura controvertida sin la que es imposible entender los comienzos de la especialidad y su publicación científica en España(AU)

Dr. Celedonio Calatayud-Costa, an eminent Spanish radiologist, electrical engineer, researcher, and co-founder of the Spanish Society of Electrical Engineering and Medical Radiology, was also the founder of the Spanish Journal of Electrical Engineering and Medical Radiology. The journal, the first journal dedicated specifically to the incipient specialty of electrology, from which radiology would later develop, was the official publication of that primordial Society, and was thus the first antecessor of Radiología, which is today the official journal of the Spanish Society of Medical Radiology. This article analyzes the figure of Dr. Calatayud, based on the scant information available about him, in the centennial of the publication of his journal. Criticized by some and eulogized by others, knowledge about this controversial figure is essential to any understanding of the beginnings of the specialty and its scientific publication in Spain(AU)

[Celedonio Calatayud-Costa and the birth of the specialty, the Spanish Society of Medical Radiology, and the journal: the beginning of a century of Spanish radiology]. / Celedonio Calatayud Costa y el nacimiento de la especialidad, la Sociedad Española de Radiología Médica y la revista: el comienzo de un siglo de Radiología española.

Dr. Celedonio Calatayud-Costa, an eminent Spanish radiologist, electrical engineer, researcher, and co-founder of the Spanish Society of Electrical Engineering and Medical Radiology, was also the founder of the Spanish Journal of Electrical Engineering and Medical Radiology. The journal, the first journal dedicated specifically to the incipient specialty of electrology, from which radiology would later develop, was the official publication of that primordial Society, and was thus the first antecessor of Radiología, which is today the official journal of the Spanish Society of Medical Radiology. This article analyzes the figure of Dr. Calatayud, based on the scant information available about him, in the centennial of the publication of his journal. Criticized by some and eulogized by others, knowledge about this controversial figure is essential to any understanding of the beginnings of the specialty and its scientific publication in Spain.

Utilidad de la SPECT-TAC ósea en la vertebroplastia percutánea / Utility of bone SPECT-CT in percutaneous vertebroplasty

La vertebroplastia percutánea es una técnica mínimamente invasiva alternativa al tratamiento médico y ortopédico en el tratamiento del dolor agudo-subagudo por fractura vertebral. La gammagrafía ósea evidencia el aumento del recambio metabólico en la fractura. Los nuevos equipos híbridos SPECT-TAC combinan las SPECT (single photon emission computed tomography ‘imágenes gammagráficas en adquisición tomográfica’) con la tomografía computarizada (TAC), permitiendo obtener mayor información conjunta, funcional y anatómica. Se presentan 5 casos seleccionados en los que las imágenes de la SPECT-TAC permitieron completar la información en cuanto al posible origen del dolor, y así valorar otras posibles causas del dolor vertebral o incluso revalorar la indicación de la vertebroplastia(AU)

Percutaneous vertebroplasty is a minimally invasive procedure that has shown excellent results in the treatment of back pain due to acute-subacute vertebral fracture. The bone scintigraphy shows the increase of metabolic exchange in the fracture. The new hybrid SPECT-CT equipment combines bone SPECT images with Computed Tomography (CT), making it possible to obtain more combined, functional and anatomical information. We present 5 selected patients studied by bone SPECT-CT in whom fused images made it possible to obtain a more precise localization of the pain origin, and thus assess other possible causes of the vertebral pain or even reassess the vertebroplasty indication(AU)