The first adequately powered randomised trial comparing dual mobility cups with standard cups in total hip replacement for displaced femoral neck fractures. It asks whether dual mobility actually reduces dislocation, the most common early complication. Conducted across 44 hospitals in Sweden and the UK in patients 65 and older.
For an active older patient getting a THR for a displaced femoral neck fracture, choose a dual mobility cup when it is available. This trial gives you randomised, not just registry, evidence that it cuts the most common early complication about threefold.
The old worry was that dual mobility trades dislocation for a higher infection rate. This trial found no infection difference, and attributes the prior signal to confounding by indication in observational data.
Approach still matters. Baseline dislocation risk is highest with the posterior approach, and that is exactly where dual mobility helps most. With a direct lateral approach the absolute benefit is smaller because the standard-cup risk is already low.
Dislocation is not a trivial event even when reduced closed. Patients who dislocated had clinically lower quality of life, which is why preventing the first event is worth the roughly twofold higher implant cost pending formal cost-effectiveness data.
The first adequately powered randomised trial comparing dual mobility cups with standard cups in total hip replacement for displaced femoral neck fractures. It asks whether dual mobility actually reduces dislocation, the most common early complication. Conducted across 44 hospitals in Sweden and the UK in patients 65 and older.
For an active older patient getting a THR for a displaced femoral neck fracture, choose a dual mobility cup when it is available. This trial gives you randomised, not just registry, evidence that it cuts the most common early complication about threefold.
The old worry was that dual mobility trades dislocation for a higher infection rate. This trial found no infection difference, and attributes the prior signal to confounding by indication in observational data.
Approach still matters. Baseline dislocation risk is highest with the posterior approach, and that is exactly where dual mobility helps most. With a direct lateral approach the absolute benefit is smaller because the standard-cup risk is already low.
Dislocation is not a trivial event even when reduced closed. Patients who dislocated had clinically lower quality of life, which is why preventing the first event is worth the roughly twofold higher implant cost pending formal cost-effectiveness data.