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Biomedical subjects

E Martucci

Publications and source records attributed to E Martucci.

At least 19 recordsLinked to original sources

The herniated lumbar intervertebral disc in children and adolescents. Long-term follow-up of 101 cases treated by surgery.

The authors review 101 cases of herniated lumbar intervertebral disc in children and adolescents treated by surgery. The most significant etiologic and pathogenetic factors in this series were early onset of disc degeneration, congenital lumbosacral malformations, and repeated trauma. The main clinical symptom was pain, usually sciatica, while neurological symptoms were less common than they are in adults. In all patients diagnosed correctly with the aid of appropriate imaging studies (myelography, CT scan, MRI), discectomy by means of conservative hemilaminectomy achieved satisfactory results, except in two cases of concomitant spinal instability due to spondylolysis and in one case of recurrence.

Adolescent

[Cephalometric analysis in acromegalic patients].

The authors of the present work have done a cephalometric study on 11 patients affected by acromegaly. The target of this research was to obtain with cephalometric analysis a means for the follow up of the disease together with an important provisional parameter of growth of the face bones, helping thus to obtain an early diagnosis and the general lines for a correct therapy. With the data obtained has been extrapolated a table with average data of cephalometric angles that, transferred on to a tracing could represent the cephalometric prototype of an acromegalic patient.

Acromegaly

Osteoid osteoma of the spine.

After reviewing the international literature the authors present three new cases of osteoid osteoma with vertebral body localisation, two in the lumbar region, and one in the cervical region. This rare localisation necessitates the use of accurate instrumental techniques, based on radiography, scintigraphy, and in particular, CT scanning, in order to arrive at a correct diagnosis as a prelude to the correct surgical treatment.

Adolescent

[Radiographic diagnosis of dislocations and fracture-dislocations of the carpus].

A variety of unique and very rare carpal dislocations are reported. According to personal findings, an extension of the descriptive classification of this pathology is proposed, utilizing also the X-ray files of the Rizzoli Orthopaedic Institute. Moreover, the radiographical features are evaluated which help choosing the treatment to be followed.

Adult

Effect of temperature on isoprenaline- and barium-induced slow action potentials in guinea-pig ventricular strips.

The effect of variation in temperature (37-32 and 27 degrees C) on electrical and mechanical activity of depolarized and isoprenaline- or barium-reactivated guinea pig ventricular strips was studied. Lowering the temperature brings a marked prolongation of isoprenaline-induced slow action potentials. In addition the maximal rate of depolarization was strongly reduced at lower temperatures. These effects were observed at an extracellular Ca2+ concentration of either 0.9 or 2.5 mM. The accompanying mechanical activities was significantly increased by reduction in temperature. Barium-induced slow action potentials were similarly affected by temperature variations. These observations suggest that hypothermia exert a sort of calcium antagonistic action probably coupled to a reduction of repolarizing outward potassium currents.

Action Potentials

Thoracic intervertebral disc protrusions.

Intervertebral disc protrusions occur most frequently in the lumbar spine, much less frequently in the cervical spine and very rarely in the thoracic spine. The symptomatology of thoracic protrusions is both aspecific and polymorphic. The diagnosis is therefore difficult and necessarily depends on myelography and computerised axial tomography (CAT scanning). The treatment is surgical and should be undertaken early if pain and neurological damage are to be relieved.

Adult

Tumoral calcinosis.

The authors present a case of tumoral calcinosis, a rare form of calcinosis due to the formation of "calcium tumours" in the vicinity of serous bursae. They discuss the clinical, anatomical and pathological features of the three principal forms of calcinosis, including the theories of pathogenesis. In the rare tumoral form the treatment is always radical excision.

Adolescent