Oct. 15 (Bloomberg) -- Former first lady Nancy Reagan will remain in the hospital for a few days after fracturing her pelvis and sacrum, a bone at the base of the spine, according to a spokeswoman.

The 87-year-old widow of President Ronald Reagan experienced persistent pain after falling in her Los Angeles home last week, said spokeswoman Joanne Drake in a statement.

She admitted herself to the Ronald Reagan UCLA Medical Center for tests that showed the injuries. She is expected to recover in six to eight weeks with physical therapy and a modified schedule, according to the statement.

``Mrs. Reagan is in good spirits, especially comforted to be receiving care from talented doctors in a world-class hospital named in honor of her late husband,'' Drake said in the statement.

Nancy and Ronald Reagan were married for 52 years, until he died in 2004. They raised four children. Their eight years in the White House capped careers that began with acting roles in Hollywood and included Ronald Reagan's two terms as California governor.

The former first lady also was hospitalized after a fall in February, but broke no bones at that time.

To contact the reporter on this story: Ryan Flinn in San Francisco at rflinn@bloomberg.net.

Last Updated: October 15, 2008 15:06 EDT