J Korean Foot Ankle Soc.  2016 Mar;20(1):27-31. 10.14193/jkfas.2016.20.1.27.

The Effect of Dwyer's Osteotomy and the 1st Metatarsal Osteotomy for Cavovarus Correction on Radiographic Parameters

  • 1W Institute for Foot and Ankle Disease and Trauma, W Hospital, Daegu, Korea.
  • 2Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea. sjs0506@paik.ac.kr


Several techniques have been introduced for correction of pes cavo-varus deformity. We retrospectively reviewed and compared the data of patients who underwent 1st metatarsal osteotomy alone, Dwyer's osteotomy alone, and 1st metatarsal osteotomy combined with Dwyer's osteotomy to determine the effect on radiographic parameters.
Data on 28 cases in 27 consecutive patients recruited from 2006 to 2014 who underwent 1st metatarsal osteotomy alone (group F), Dwyer's osteotomy alone (group H), or 1st metatarsal osteotomy followed by Dwyer's osteotomy (group HF) with a minimum 1-year follow-up were reviewed retrospectively.
Calcaneal pitch angle on the standing foot lateral radiographs was significantly decreased after the operation in groups H and HF whereas Meary angle was decreased in groups F and HF. Hindfoot alignment angle and ratio on the hindfoot alignment view were improved in groups H and HF. Maximal medial cuneiform height reduction was observed in group HF. 1st ray was significantly shortened in groups F and HF.
Combined forefoot and hindfoot operation took the largest correction power of all radiologic parameters.


Foot deformities; Osteotomy; Radiology

MeSH Terms

Congenital Abnormalities
Follow-Up Studies
Foot Deformities
Metatarsal Bones*
Retrospective Studies


  • Figure 1. (A∼C) Preoperative radiographs show increased Meary angle (16o) calcaneal pitch angle (33o) and hindfoot varus. (D∼F) Postoperative radiographs show improvement of Meary angle (8o) and calcaneal pitch angle (24o) and hindfoot varus with simultaneous forefoot and hindfoot correction.



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