Increased Femoral Component Size Options Improves Manipulation Rate in Females and Knee Society Clinical Scores in Males.

Introduction: The gender-specific total knee arthroplasty (TKA) debate focuses on differences in distal femoral mediolateral to anteroposterior aspect ratio between males and females. However, randomized studies have been unable to demonstrate significant differences in outcomes utilizing gender-specific implants. No studies have examined the effect of intermediate femoral component sizes on outcome.

Molded Articulating Cement Spacers for Two-Stage Treatment of Infected THA and TKA.

Articulating spacers have been reported to promote greater range of motion, preserve bone, facilitate reimplantation, and enhance functional recovery, as well as provide a vehicle for local administration of antibiotics. The purpose of this study was to review patients treated at our center for deep hip and knee infection with two-staged exchange using molded, articulating antibiotic-laden cement spacers following debridement. A query of our practice registry revealed 84 patients (84 hips) and 177 patients (182 knees) diagnosed with deep infection after THA and TKA respectively, and treated with two-staged exchange using molded articulating cement spacers.

The current trends for lateral unicondylar knee arthroplasty.

Unicompartmental osteoarthritis of the knee is a relatively common disease that is seen in 40% of the population. Although disease isolated to the medial compartment of the knee is more common, isolated lateral disease also frequently exists (25% vs 10%). However, surgeons perform medial unicondylar knee replacement at a ratio of 10:1 when compared with lateral unicondylar knee replacement.