"Thank you to Ford's Theatre Society for tonight, and your continued dedication to education and leadership in the arts-the impact they have on society is invaluable and something we will continue to cherish throughout time", the statement added.
Both Melania and President Donald Trump attended the gala last year, but with the President in Singapore for his upcoming summit with North Korea's leader Kim Jong Un, the first lady will attend this year's event solo. She spent five nights in a military hospital before returning to the White House on May 19 to continue her recuperation.
Dr Kelvin Hong, the director of the Johns Hopkins Interventional Radiology Center, said a four-hour operation to treat the condition described by the White House would be unusual.
Her office has declined to provide additional details about her condition, citing privacy rights.
Close friends of Melania Trump are said to be concerned about her since she took the decision to forgo public appearances for nearly a month after battling health issues.
Kevin Love hopes to stay with Cavaliers
As this season has progressed, I have continued to lose respect for guys like Durant and Curry. And quotes like this won't do anything to make people more sympathetic to Durant.
'Can't fly for one month, the doctors say, ' he said.
President Donald Trump and his wife attended the Ford's event past year. He told inquisitive reporters that "the First Lady is great".
In the weeks since aides said she underwent an procedure to treat a benign kidney condition, Melania Trump has directed her East Wing aides to release nearly no information about her medical condition or explain why she was at Walter Reed National Military Medical Center for five days.
This isn't the first time the first lady has likely used fashion as a way of speaking without saying a word. "Melania would leave the White House in a hot second if it meant choosing between the role of first lady and her family's health and well-being".
The source added: "I don't know exactly when the move is supposed to happen, but it is being talked about as a permanent move".