The former Miss World and top model said she’s “a bit heartbroken” to be missing the big event for Sophia as she turned one.
From her hospital bed she shared a picture of herself and Sophia with the caption, ‘Our baby girl is one today’ on her Instagram page.
"Hard to believe that Sophia arrived into the world a year ago… and what a year it’s been!!” she added.
"Cake, balloons, cuddles and pressies planned for a belated celebration when I’m home from hospital.”
She also shared a picture of Sophia holding her finger when she was just born.
Rosanna captioned this snap saying: "This day last year our daughter Sophia arrived into the world and changed our lives in the best way possible."
The daughter of Lady in Red singer Chris De Burgh first announced the arrival of twin boys, Hugo and Oscar, with a snap from her hospital bed on Wednesday.
She is seen with husband Wes Quirke holding the new babies in the Instagram post and said "all our dreams have come true".
She said: "Our beautiful and healthy identical twin baby boys, Hugo and Oscar, arrived safely into the world this morning and our hearts are bursting with love.
"Just like that, we’ve become a family of five and all our dreams have come true.
"We’re deeply grateful to the wonderful, hardworking team at @nationalmaternityhospital for all of their kindness and support."
The 36-year-old model had previously revealed how she had suffered 14 heart-breaking miscarriages before welcoming daughter Sophia via surrogate last November.
She described her surprise pregnancy as “one of life’s mysteries” and credited the slower pace of life this year for making the difference.
She said: "We’re absolutely thrilled to complete our family and for our daughter Sophia to have two siblings so close in age to her."