Vol.XXXVII, Suppl. 1 - Giornale Italiano di Ortopedia e Traumatologia

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scheletriche in quanto ancora molti sono gli aspetti da
chiarire circa il loro utilizzo.
Primo fra tutti, la tecnica di estrazione dei fattori di crescita
autologhi. Come già accennato, in commercio è possibile
trovare sistemi per ottenere PRP ben differenti tra loro per
diversi parametri come la concentrazione fi nale di piastrine,
l’utilizzo di attivatori o la presenza più o meno evidente
di leucociti, monociti o macrofagi contenuti nel PRP.
Un punto, secondo noi cruciale, nell’utilizzo delle tera-
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pie biologiche consiste nello stabilire non tanto i tempi
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