The primary outcome measure will assess upper extremity functioning ( Patient-Rated Wrist Evaluation -LSB- PRWE -RSB- ) , while secondary outcome measures cover subjective wrist function ( Disabilities of the Arm and Shoulder ; -LSB- DASH -RSB- , objective impairment ( range of motion , grip force ) and quality of life ( EuroQol-@D , -LSB- EQ@D -RSB- ) .