1.   Most artificial joints are cemented into place.

2.   But through the years, pressure on the new joint often caused the cement to crack and the artificial joint to loosen.

3.   Goaded by the need to control spending, hospital administrators backed by experts like Weeks are pressing doctors to use cheaper artificial joints, pacemakers and other implants.

4.   He has artificial joints, as well as diabetes and other ailments resulting from injuries suffered in Vietnam.

5.   He is far from alone in his early entry into the arena of artificial joints.

6.   Hospital administrators are pressing doctors to use cheaper artificial joints, pacemakers and other implants.

7.   In addition to avoiding undue stress on the artificial joint, anyone with an implanted prosthesis has to be concerned about the possibility of infection.

8.   Osteoarthritis is also the main reason for surgery to replace knees and hips with artificial joints.

9.   Sometime that fall, Miss Duke decided to have her arthritic knees replaced with artificial joints.

10.   The material also could be used as a surface material on artificial joints and other implants to reduce the problem of surface wear and rejection, she said.