Estratto
La spondilolisi è un difetto uni o bilaterale dell’istmo, o pars interarticularis, della vertebra. L’istmo rappresenta il punto di giunzione tra il peduncolo, le faccette articolari e la lamina. I capi ossei affrontati a livello della spondilolisi sono collegati tra loro da un tessuto che è una combinazione di materiale fibroso, cartilagineo ed osseo, che può evolvere in pseudoartrosi. Alcune volte si ha la guarigione del difetto istmico con formazione di callo osseo riparatore. L’incidenza della spondilolisi lombare, nella popolazione generale, è stimata intorno al 6%, ma raggiunge il 63% tra coloro che praticano particolari attività sportive. La spondilolisi, rara prima dei cinque anni, è molto più frequente dopo i dieci anni di età; l’incidenza aumenta negli anni fino ad arrestarsi in età adulta.
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Leone, A., Cirillo, M., Costantini, A.M. (2008). Spondilolisi Lombare. In: Imaging del rachide. Springer, Milano. https://doi.org/10.1007/978-88-470-0836-6_2
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DOI: https://doi.org/10.1007/978-88-470-0836-6_2
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