Medical Groups Tracking Hip, Knee Implants After J&J Recall

Databases created by two doctors’ groups are now tracking the success rates of artificial hips and knees in the U.S. following a Johnson & Johnson unit’s decision last year to recall a hip implant used on 93,000 patients.

The two registries -- one organized by the orthopedic industry and the other funded by the federal government -- will replicate and improve on national databases in Australia, Sweden and elsewhere, according to doctors leading the efforts.