Heather Mills to undergo surgery

London -- Heather Mills, estranged wife of British music icon Paul McCartney, could be facing surgery to repair a broken plate in her pelvis, the Mirror said Thursday.

The former model and mother of McCartney's 4-year-old daughter, Beatrice, had her leg amputated when she was hit by a police motorcycle 14 years ago.

A friend told the newspaper Mills is in "absolute agony" after a metal plate in her pelvis broke.

"It separated after a screw came out. Two weeks ago, the joint moved and is out of line -- it's not stable. She could face a serious operation."

It could take Mills up to six months to recovery from the surgery, the friend told the Mirror.

Earlier this week, media reports said McCartney offered to pay Mills a divorce settlement of $51 million.

Mills' legal team is said to be urging her to accept the deal.

McCartney initially offered to pay Mills between $6.1 million and $10.2 million.

As part of the newly proposed pact, Mills would get $51 million, but be required to keep quiet about her relationship with the former Beatle.

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