There's no there there.

In 2002, 69% of U.S. women who had undergone a complete hysterectomy said that they had had a Pap smear within the previous three years; this proportion had not changed since the early 1990s, even though a federal task force recommended in 1996 against routine Pap smears for women without a cervix. (1) Using data from an annual population-based survey, analysts estimated that in 2002, 15 million women aged 18 and older had undergone hysterectomy yet had had a Pap smear in the past three years. When they subtracted from this total women whose hysterectomy could have preceded the Pap smear, those who still had a cervix and those who had had the hysterectomy to treat a cervical malignancy, the result indicated that approximately 10 million women--almost half of those who had undergone hysterectomy--had needlessly obtained a Pap smear. The analysts speculate that their findings may stem from women's misunderstanding of hysterectomy and the purpose of Pap smears, from physicians' reluctance to discontinue screening for fear that patients will question their judgment or from systemic factors, such as Pap smear performance measures.

(1.) Sirovich BE and Welch HG, Cervical cancer screening among women without a cervix, Journal of the American Medical Association, 2004, 291(24):2990-2993.