US Supreme Court Justice Ruth Bader Ginsburg said she is “almost repaired” after falling and fracturing three ribs in November.

“[My health] is fine [and] my ribs are almost repaired,” she told an audience at an event in New York City on Saturday night.

Ms Ginsburg also said she had been able to do an entire workout routine with her personal trainer for the first time since her accident, according to CNN.

The 85-year-old liberal justice’s fall at her office on 7 November caused huge concern among her supporters, who feared her fragile health might allow President Donald Trump to install another conservative on the bench.

But she has not missed a single day of oral arguments at the Supreme Court since her tumble and has pledged to stay on for another five years.

The federal judiciary’s highest court is still recovering from a bitter battle that broke out over the confirmation of Justice Brett Kavanaugh in October. The conservative justice was forced to deny allegations he had sexually assaulted Christine Blasey Ford at a series of congressional hearings.

Speaking at an event hosted by the Museum of the City of New York, Ms Ginsburg told NPR’s Nina Totenberg that the Supreme Court was “the most collegial institute in town … We all respect and even genuinely like each other.”

Mr Trump greeted the justice at a White House ceremony in honour of her late colleague Justice Antonin Scalia last month. “Glad to see you are feeling great,” said the president.

She also attended the funeral of President George H.W. Bush earlier this month.

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The oldest member of the Supreme Court, Ms Ginsburg is known affectionately by fans as the “Notorious RBG”.

“I always use the acronym TAN – tough as nails,” her personal trainer, Bryant Johnson, has said. “As a matter of fact, I really have to kind of make her rest a little.”