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Biomedical subjects

J Dubousset

Publications and source records attributed to J Dubousset.

At least 127 records · Page 7Linked to original sources
PubMedDate not supplied

[CDH--preliminary report on a primary stable ventral lumbar spine instrumentation].

CDH-instrumentation was developed by the principles of an improved stability in ventral operation procedure and by the possibility of treating all anterior spinal diseases. The implantation of anterior plates and drawers, the use of rods fixed within the implant in non-parallel directions thus automatically providing for a locking mechanism against displacements, the prevention of dislocation of the cancellous bone screws and the DDT-principle were further requirements. The spine can be corrected according to the three-dimensional anatomy by distraction-, compression and rotational forces, a postoperative external support is unnecessary. After the application of the method in 50 patients (mono- and multisegmental) the excellent stability could be proved.

Adolescent↗
PubMedDate not supplied

Osteotomy and distraction of the anterior segment of the pelvic ring in epispadias repair: case report.

We report a new therapeutic approach for bladder exstrophy and epispadias in one case of failed epispadias repair. The width of the pelvis was measured by what we defined as the anteroposterior diameter (APD) on combined transverse computed tomography (CT) scan cuts of the pelvis. The APD was half the normal value in an incontinent patient with failed epispadias repair. He underwent a supraacetabular osteotomy of the pelvis with progressive anterior distraction of the anterior segment of the pelvic ring. Four months later, hardware was removed, and the APD was near normal value. Within 9 months of follow-up, the patient was dry day and night. We believe that in patients with failed exstrophy and epispadias repair, APD seems to be a predictive criterion for continence, and results of the reconstructive surgery with osteotomy should be improved by distraction of the anterior segment of the pelvic ring.

Acetabulum↗
PubMedDate not supplied

Hyperlordosis.

Explore the source record for details and available documents.

Adolescent↗
PubMedDate not supplied

The crankshaft phenomenon.

We reviewed 40 spinal fusions done prior to Risser stage I for idiopathic and paralytic scoliosis to evaluate postoperative curve progression. The 39 patients who had posterior fusion alone had progressive angulation and rotation of the spine over the postoperative follow-up period. The more immature the patient, the greater the resultant progression. This progression is an inevitable consequence of continued anterior spinal growth in the presence of a posterior fusion, and occurs without pseudarthrosis or hardware failure. Younger patients may require anterior and posterior fusion to achieve stable correction.

Child↗
PubMedDate not supplied

Pathogenesis of idiopathic scoliosis: SEPs in chicken with experimentally induced scoliosis and in patients with idiopathic scoliosis.

We studied somatosensory evoked potentials (SEPs) in 20 chickens with experimentally induced scoliosis after pinealectomy and in 100 patients with idiopathic scoliosis. We also studied 20 chickens without scoliosis and 20 healthy youngsters. In the chickens, SEPs after leg stimulation was significantly delayed in the scoliosis group compared to the controls. In patients, the latency of cortical potential (N37) after stimulation of tibial nerve was longer in the scoliosis group than in the controls. Our findings in both experimental and clinical studies strongly support the hypothesis that idiopathic scoliosis results from dysfunction in the central nervous system. The type of SEPs abnormalities described in idiopathic scoliosis suggest a pathology from the midbrain to the cortex.

Adolescent↗
PubMedDate not supplied

[Isthmus lysis and spondylolisthesis. A traumatic pathology].

Fourty-five children presenting with an isthmic lysis, complicated or not with spondylolisthesis were studied. The authors suggest that the isthmic lysis could be a stress-induced lesion, a "fatigue fracture" which may heal if treated early, before spondylolisthesis occurs. The main point is therefore an early diagnosis.

Adolescent↗