“Thicker” Polyethylene Bearings are Associated with Higher Failure Rates in Primary TKA

Failure in TKA is multifactorial and dependent upon surgical, implant, and patient factors. “Thin” modular polyethylene bearings have previously been associated with early failure due to bearing wear. The purpose of this study was to examine the influence of polyethylene insert thickness on long-term survivorship in primary TKA. Do “thinner” or “thicker” bearings fail more?