Daughter is 4 foot 8 dr did hand bone xray and 9 y/o said growth plates fused is it possible for her to still grow? Got period at age 8

She's done. Growing taller requires open growth plates.She entered puberty early.The hormones that drive puberty also tell the growth to finish.
Growth. Once the growth plates fuse, then there is minimal if any growth. The person is unlikely to grow further. In the US the median age for onset of puberty in girls is around 10 years of age and menarche (the first period) is a later pubertal event and usually there is not further growth after menarche.
No, unfortunately if the growth plates are fused(closed), there is no significant potential for additional height growth.