[How to visualize one additional vertebra on profile radiographs of the cervical spine?].

The authors describe a simple technical trick allowing a better study of the cervical spine in subjects with a brevilineal morphology: this consists in placing a small sans block between, the patient's shoulder blades, while exerting the usual traction, thus causing appropriate backward displacement of the shoulders and clearing the lower cervical spine.

[Computed tomography in the evaluation of recent articular fractures of the calcaneus].

After mentioning the results of a survey carried out on 28 patients suffering from recent calcaneus articular fractures, the authors point out 9 main points to take into account when a TDM analysis of these lesions is to be done: they recommend to practice a double obliquity incidence that seems to be an efficient guide for a therapeutic decision. They insist on the usefulness of the TDM examination provided it is undertaken after the operation and the removal of the osteosynthesis equipment.

Scanographic study of the calcaneus: normal anatomy and clinical applications.

To facilitate the interpretation of the scanographic findings in fractures of the calcaneus, the authors have achieved an anatomo-radiologic correlation in terms of the classical coronal, sagittal and horizontal planes. Clinically, the sagittal plane can be obtained only by reconstruction. The 2 other planes permit study of the sustentaculum tali and posterior talar surface only in different sections, without their respective relationships.