Abstract des Autors

Objective: To discover a prognostic factor to suffering spondylosis and/or spondylolisthesis. Material and Methods: Three hundred and twenty-four sports people with symptoms of isthmic injury, to whom a radiographic study was applied, i.e., in the anteroposterior projection: Risser test, Transversal Apophysis Length (TAL), existence of Spina Bifida Occulta (SBO), in the lateral and functional projections (flexion and extension): Sacra Cupola Index (SCI), Lumbar Lordosis Angle (LLA) and olisthetic displacement percentage. Results and Discussion: 1. Behaviour of the sacrum: The Spondylosis group had some higher SCI and ASH values in flexion and extension than the Control group. This means that the posterosuperior angle of SI compromises the lumbar arch, and the spatial position of the sacrum is a prognostic and aetiopathogenic factor. 2. Lumbosacral morphology: The IL and the SCI have a statistical relationship with the Spondylolisthesis group. The trapezoidal appearance of the fifth lumbar vertebra and the top side of the sacrum in console seem to be prognostic factors to suffering olisthesis. 3. Prevalence of SBO: Control Group: 25%, Spondylosis group: 52%, Spondylolisthesis Group: 72%. Having SBO is a prognostic factor to suffering spondylosis and/or greater olisthesis. 4. Behaviour of the Transversal Apophyses: The analysis of the results indicates that TAL is a secondary, and not primary, phenomenon to the isthmic injury. Lastly, by way of an addendum, there is a description of an aetiopathogenic hypothesis of the natural history of spondylosis in sport. Verf.-Referat