The donor tissue is then sewn in place with sutures.

Folds in the donor tissue may reduce the quality of vision requiring repair.

Rejection of the donor tissue may require repeating the procedure.

Women with saddlebag thighs may prefer that site for donor tissue, he said.

The investigation has not demonstrated exactly when or where the donor tissues were infected, he said.

At least 50,000 people each year, many of them young, need this surgery, although how many receive donor tissue is not known.

But other experts say the cases point to serious holes in the system to monitor the trade in donor tissue.

But three years ago he had a patient who developed a serious clostridial infection in his knee after receiving donor tissue.

"Our paper proposes a different approach: to treat the donor tissue."

This may be important in understanding whether your donor tissue can be used.