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A comparison of lateral column lengthening and medial translational osteotomy of the calcaneus for the reconstruction of adult acquired flatfoot.

Bolt PM, Coy S, Toolan BC

Department of Surgery, University of Chicago Medical Center, IL, USA.

BACKGROUND: This study compared the effects of lateral column lengthening and medial translational calcaneal osteotomy on pedal realignment and degeneration of adjacent hindfoot joints noted on radiographs. METHODS: Forty patients who had either a lateral column lengthening (25 feet) or calcaneal osteotomy (17 feet) to reconstruct a flatfoot were retrospectively reviewed as two groups. Six parameters of foot alignment were measured from weightbearing preoperative, early postoperative, and latest followup radiographs. The magnitude of realignment achieved initially and preserved at latest followup was determined for each group. The talonavicular and subtalar joints were graded for radiographic evidence of arthritis before the reconstruction and at latest followup. Demographic information, complication rate, and reoperation associated with each group also were determined by chart review. RESULTS: The group that received a lateral column lengthening demonstrated a greater initial realignment than the group treated with a calcaneal osteotomy. The lengthening group also demonstrated greater realignment than the osteotomized group when they were compared at their respective latest followup. The lengthening group had a higher number of adjacent joints with progression of arthritis. The rate of nonunion was higher with a lateral column lengthening; however, the rate of reoperation after an osteotomy was more than twice that observed after a lateral column lengthening. CONCLUSIONS: The lateral column lengthening group achieved greater realignment initially and maintained correction better over time than the calcaneal osteotomy group while having a lower reoperation rate despite a higher incidence of nonunion and radiographic progression of adjacent joint arthritis.

Published 20 November 2007 in Foot Ankle Int, 28(11): 1115-23.
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