We report the history of 11 patients suffering from TAR-syndrome (Thro
bocytopenia and absent radii). 4 cases are reported the first time. 15
orthopedic operations were performed. No intraoperative bleeding comp
lications occurred. In one case a bleeding gastric ulcer was operated
on after postoperative intensive care treatment. So, the TAR syndrome
is no contraindication for operative orthopedic treatment. 10 of 11 pa
tients show additional malformations. These malformations had to be op
erated in 5 patients to restore the ability to walk. Because of additi
onal malformations the radial clubhand could be operated in 3 cases on
ly.