[ XXXX in eleven French Antilles @entity1 ].

@entity1 @entity1184 @entity245 @entity74 @entity850 @entity543
PURPOSE OF THE STUDY: @entity245 is a rare entity, exceptionally described in the literature. No study has been directly devoted to this condition. The purpose of the present study was to examine specific features, particularly clinical and anatomic expression, observed in a series of operated @entity1 . MATERIAL AND METHODS: Eleven @entity1 from the French Antilles were treated for @entity245 between 1996 and 2000. The Verbiest criteria were used to define canal @entity543 . Signs of degeneration and presence of discal herniation were exclusion criteria. Epidemiological and clinical data were collected for the 11 @entity1 . The degree of @entity850 (fixed diameter at the bone level and mobile diameter at the discal level) was measured on computed tomography images. Transverse @entity850 was determined by measuring the interpedicular and interapophyseal distances. @entity850 was determined by measuring the depth of the recessus. RESULTS: These @entity1 were young (mean age 42.4 years). Most of the clinical signs were monoradicular. Discal level @entity850 predominated, generally at level L4-L5. It was generally central and lateral, sagittal and transverse. The interpedicular distance was the only diameter that remained within normal limits. Soft tissues (yellow ligaments and joint capsules) played an important role in the @entity850 . DISCUSSION: The rare reports of @entity245 describe decompensated @entity850 due to discal herniation in the adolescent. @entity245 is considered to be a @entity74 and its particular high frequency in the French Antilles favors this hypothesis. The @entity850 results from bony (short pedicles, hypertrophic lateral masses) and ligament ( @entity1184 of the yellow ligament and joint capsules) structures. CONCLUSION: @entity245 produces a global (sagittal, transverse, central, lateral) narrowing of the lumbar canal where soft tissue structures apparently play a greater role than usually thought. A prospective study examining the impact of ethnic origin is required to analyze the genetic hypothesis.
