In a consecutive series of 35 patients, the first intermetatarsal angle could be reduced to normal values (6.8 degrees , standard deviation 1.3 degrees ). The open-wedge osteotomy resulted in a slight lengthening of the first metatarsal (1-2 mm). In one patient local wound healing problems had to be treated with oral antibiotics. Operative revision was not necessary in any case. Implant failure or nonunion was not observed. One plate was removed because of local subcutaneous irritation.