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Updated: May 25, 2026
An Efficient and Reproducible Protocol for Distraction Osteogenesis in a Rat Model Leading to a Functional Regenerated Femur
Published on: October 23, 2017
Results of calcaneocuboid distraction arthrodesis
Todd R Grunander1, David B Thordarson
1Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, 1200 N. State St, GNH 3900, Los Angeles, CA 90033, USA. grunande@usc.edu
Background:
One powerful method of reconstructing an adult acquired flatfoot deformity is a calcaneocuboid distraction arthrodesis. We performed a retrospective review of a small series of patients who underwent a calcaneocuboid distraction arthrodesis with a femoral head allograft.
Materials And Methods:
Sixteen feet (14 patients) were identified with an average follow up of 23 months (8-39 months) and an average age of 43 years (16-60 years). A calcaneocuboid distraction arthrodesis was performed with a femoral head allograft, secured with a 3 hole 1/3 tubular plate with 7 of the grafts being supplemented with platelet rich plasma (PRP). Patients were kept non-weight bearing for 6 weeks with an additional 6 weeks in a walking cast or boot. Plain radiographs and if necessary a CT or MRI were used to evaluate for union.
Results:
Seven of the 16 feet developed a nonunion. Five of 9 patients without PRP developed a nonunion vs 2 of 7 patients where PRP was used.
Conclusion:
Due to the unacceptably high complication rate with this procedure, the authors have abandoned this procedure. If an allograft is to be used for a calcaneocuboid arthrodesis, the authors strongly recommend using rigid locking fixation with a longer period of protected immobilization.
