Enrollment and randomization
fracture, Colles’ type DRF
All patients aged 65 years or older with a Colles’ type DRF and a sufficient reduction result were eligible for randomization (criteria presented in The patients were randomized to either the VFUDC or FC group using a random number matrix in block allocation fashion with a 1 to 1 ratio. The blocks were stratified by age (65 to 74 and 75 and older) and whether the fracture was intra- or extra-articular. The randomization allocations were sealed in consecutively numbered envelopes that were situated in the emergency rooms of the participating hospitals.