Abstract
The Evans calcaneal osteotomy is an invaluable tool in the correction of pediatric
collapsing pes planovalgus. It has traditionally been performed without the use of
fixation. Recently, however, fixation of the Evans osteotomy has been proposed to
prevent displacement. A retrospective radiographic study was performed of 33 patients
(50 feet) to examine the amount of displacement of the anterior process after performing
the Evans osteotomy without fixation. The anterior process height was measured digitally
from the radiographs on the lateral view preoperatively, at approximately 6 weeks
postoperatively, and at the final follow-up visit. The patients were followed up to
a mean of 30.57 (range, 6 to 107) weeks postoperatively. The anterior process showed
a statistically significant dorsal displacement of 1.21 mm (95% confidence interval
0.29, 2.12, P = .0001) at 6 weeks postoperatively. This had diminished to an insignificant dorsal
displacement of 0.57 mm (95% confidence interval −0.21, 1.34, P = .148) at the final follow-up visit. Clinically and statistically significant improvements
in the calcaneal inclination and talar declination angles were observed in the early
and late postoperative periods. None of the patients experienced a postoperative complication
that required a return to the operating room.
Level of Clinical Evidence
Keywords
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Article info
Footnotes
Financial Disclosure: None reported.
Conflict of Interest: None reported.
Identification
Copyright
© 2011 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.
