What is the crankshaft phenomenon complication in the surgical treatment of idiopathic scoliosis?

Updated: Dec 02, 2020
  • Author: Charles T Mehlman, DO, MPH; Chief Editor: Jeffrey A Goldstein, MD  more...
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Answer

Much has been written regarding a particular complication called crankshaft phenomenon, which may occur after posterior spinal fusion of idiopathic scoliosis in patients who have significant anterior spinal growth remaining. Sanders et al reported that the risk of the crankshaft phenomenon was highest in patients younger than 10 years and in patients with a Risser sign of 0 with an open triradiate cartilage. [141]


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