The Altdorf hip clamp.

Forty-one osteotomies internally fixed with the Altdorf hip clamp were reviewed at Nemours Children's Hospital (Jacksonville, FL). They were divided according to pathology: cerebral palsy, 19 patients; congenital dislocated hip, 2 patients; Legg-Calvé-Perthes disease, 8 patients; and other, 2 patients. There were 15 boys and 18 girls, with an average age of 6.9 years (range 2.6-12 years). No intraoperative complications have been reported. Long-term complications are as follows: nonunion, one patient; superficial wound infection, one patient; and loss of position of greater than 15 degrees, two patients.