Mazzotti A, et al. - Researchers evaluated whether preoperative valgus or varus deformity affected survivorship after total knee arthroplasty (TKA). They also quantified the risk factors for implant failure in a registry-based population. They examined the Emilia-Romagna Registry of Prosthetic Orthopedic Implants regarding TKAs performed on patients with a preoperative diagnosis of valgus or varus deformity. A twofold risk of failure was demonstrated by preoperative valgus alignment as compared to varus alignment after TKA. Findings suggested consideration of this in daily practice, and surgeons are called on to pay more attention when performing TKAs on such patients.