Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

New Rules for All-Metal Hip Implants Proposed by FDA

Makers of artificial hips with all-metal components would have to prove the devices are safe and effective under new rules proposed by the U.S. Food and Drug Administration.

This proof would be required in order to continue selling current all-metal hip implants or to obtain FDA approval for new all-metal designs, The New York Timesreported.

About 500,000 people in the U.S. have received all-metal hip implants, in which the ball and cup component is made from a metallic alloy. However, many of these implants are failing early and thousands of patients have had to undergo costly and painful operations to replace the devices.

In addition, hundreds of patients may have suffered severe tissue and bone damage after all-metal hip implants released tiny particles of debris. Some of those patients have been left disabled, The Timesreported.

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Pom Wonderful Health Claims Barred by FTC

The makers of Pom Wonderful pomegranate juice are not allowed to make any claim that the drink is effective in curing or treating health conditions such as heart disease and prostate cancer, the U.S. Federal Trade Commission said Wednesday.

In a 5-0 ruling, the FTC upheld an administrative law judge's decision that the makers of the beverage deceptively advertised their products. The commission also said that food companies making specific claims about the health benefits of their products will have to provide evidence from randomized clinical trials, the Wall Street Journalreported.

In a statement, Pom Wonderful said it "categorically rejects the FTC's assertion that our advertisements made any misleading disease treatment or other health claims."

The company also said the FTC was ignoring millions of dollars of scientific research and history on the benefits of pomegranate juice, WSJreported.

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