The Journal of Bone and Joint Surgery, Vol 66, Issue 7 1003-1007, Copyright © 1984 by Journal of Bone and Joint Surgery, Inc
Carpal deviation in congenital ulnar deficiency
NA Marcus and GE Omer
In patients with hypoplasia of the ulna, the role of the fibrocartilaginous
anlage of the ulna in the development of deformity is controversial.
Between 1971 and 1982, we treated eight such patients with eleven affected
extremities. We maintained them on a conservative regimen of static
splinting, and surgery was not undertaken unless there was uncorrectable
ulnar deviation at the wrist of 30 degrees or more. Resection of the anlage
had to be performed in only one patient. Progression of uncorrectable ulnar
deviation at the wrist rarely occurs in patients with ulnar deficiency;
therefore, routine precautionary excision of the anlage is not justified.