Subtalar distractional realignment arthrodesis with wedge bone grafting and lateral decompression for calcaneal malunion

Yeung Jen Chen, Tsung Jen Huang, Kuo Yao Hsu, Robert Wen Wei Hsu, Chung Wu Chen

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Background: The purpose of this study was to evaluate prospectively the efficacy of subtalar distractional realignment arthrodesis in the treatment of calcaneal malunion associated with subtalar arthritis, collapse of height, talonavicular subluxation, malalignment of the heel axis, and widening heel with calcaneo-fibular abutment. Methods: Thirty-four patients with severe calcaneal malunion were treated with a lateral approach, lateral decompression, medial subtalar capsulotomy, and distraction and realignment of the subtalar joint with an anteriorly and laterally tapered wedge bone graft. The patients were evaluated with a functional rating scale and radiographs, both before and after surgery. Results: Thirty-two of the 34 patients were evaluated at a mean of 71 months (range, 60-92 months) after the arthrodesis. Solid subtalar fusion was achieved in 31 of the 32 patients. The average gain of subtalar distraction was 12 mm. Neutral or mild valgus alignment was achieved in 26 of the 32 patients. The mean postoperative score (83) showed significant improvement over the mean preoperative score (47). Overall, the functional rating scale revealed excellent or good results in 26 patients and fair results in 6 patients. Conclusion: Coupled with wedge bone grafting, the subtalar distractional realignment arthrodesis achieved restoration of hindfoot height and axial alignment with a good union rate and significant improvement in the majority of patients with calcaneal malunion.

Original languageEnglish
Pages (from-to)729-737
Number of pages9
JournalJournal of Trauma - Injury, Infection and Critical Care
Issue number4
Publication statusPublished - Oct 1998
Externally publishedYes


  • Calcaneal malunion
  • Distraction realignment arthrodesis
  • Wedge graft

ASJC Scopus subject areas

  • Surgery


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