Knee Products
DePuy Knee Products
Products involved in litigation.
Attune Knee System
Launched 2013Tibial component loosening. Multiple reports of early failure within 2-5 years requiring revision surgery.
Sigma Knee System
Launched 2000Various complications including wear, loosening, and polyethylene insert failures reported.
LCS Complete System
Launched 1998Mobile bearing design with reports of bearing spinout and instability.
Sigma PFC
Launched 1991Earlier generation with reports of tibial insert wear and osteolysis.
Attune Tibial Loosening
The Attune Knee System has been the primary focus of recent litigation. Studies suggest the tibial baseplate design may not allow proper cement bonding, leading to loosening and early failure.