[Endovascular embolization of ophthalmic artery branches for control of refractory epistaxis: report of one case].

Embolization of the internal maxillary artery is an accepted method for control of severe or recurrent posterior epistaxis. Such endovascular treatment may fail if the vascular supply to the bleeding vessels originates in branches of the ophthalmic artery. We report one case in which embolization of the ophthalmic artery was performed to control epistaxis.

[Percutaneous osteosynthesis of pelvic fractures with CT control].

Pelvis fractures, most often multiple, are frequently unstable. Orthopedic treatment is hardly bearable (traction in bed sometimes up to 45 days), the open reduction and internal fixation (ORIF) is heavy. Percutaneous fluoroscopy guided fixation lacks precision in depth.

[Triple and quadruple images in scan of fractures of the articular processes of the lower cervical spine].

The authors describe the triple and quadruple image aspects of the articular pillar, which are encountered respectively in one-sided uni- and biarticular fractures of the lower cervical spine, and they have analysed these images' specificity from a retrospective study. This study concerned 52 cases out of a group of 220 patients hospitalised between 1979 and 1992, with an injury of the lower cervical spine and who underwent a CT-scan examination in addition to the conventional radiographic check-up. Among a total of 70 lesions, 14 uniarticular and 4 biarticular one-sided fractures were recorded.

Fracture of the spine, spinal epidural haematoma and spondylitis. Report of one case and review of the literature.

We report the case of a patient suffering from spinal epidural haematoma and thoracic spinal fracture, and from ankylosing spondylitis. Fourteen cases of spinal epidural haematoma in association with ankylosing spondylitis have been reported in the literature, 12 of them at a cervical level. Spinal epidural haematoma found in patients suffering from ankylosing spondylitis share the same clinical picture as other haematomas, the notion of time being the main feature.

Pull-out strength of sacral implants using Cotrel-Dubousset fixation devices.

Our aim was to determine the bone structure of the sacrum and the optimum location in the sacrum for the insertion of lumbosacral screws in osteosynthesis. Anatomical tests were performed on mortuary specimens at the Medical School in Nice, France, on frozen sections of sacrum and in computed tomographic (CT) sections with 3-dimensional reconstruction. Density assessment of different structures from the first and second sacral vertebrae (S1, S2) was performed and expressed in Hounsfield units.