Dual Mobility THR Cuts Hip Dislocation Risk in Fracture Patients

A randomized trial evaluated the risk of surgical complications with dual mobility total hip replacement (DM-THR) versus conventional THR in 1,566 patients aged 65 years or older with displaced femoral neck fracture across 20 Swedish and 24 UK hospitals. One year after surgery, a lower proportion of patients in the DM-THR group experienced hip dislocation than those in the THR group (1.3% vs 4.2%; adjusted hazard ratio [aHR] 0.27). The overall incidence of surgical complications, including dislocation, prosthetic joint infection, or re-operation for any reason, was also lower with DM-THR than with THR (3.0% vs 6.1%; aHR 0.45).

However, prosthetic joint infection, mortality rate, and quality of life were similar between the groups. These findings suggest that DM-THR reduces the risk of hip dislocation and overall surgical complications in patients with displaced femoral neck fracture.…