She broke 2 ribs in July 2012 so this isn't her first broken ribs rodeo
Article from 2012:
Exclusive: Justice Ginsburg shrugs off rib injury
"Ginsburg, who has survived two serious bouts with cancer, undergoes regular check-ups and said Tuesday her health on that front was “great.” She continues to use a personal trainer."
"At first I thought it was nothing,” said Ginsburg, who fell at home. She added, however, that the injury occurred at the start of the Supreme Court’s difficult final month, “so it was the worst possible time.”