Fig. 4From: Correction: Changes of improvement in upper limb function predict surgical outcome after laminoplasty in 1 year in patients with cervical spondylotic myelopathy: a retrospective studya The independent factor for improvement of JOA score in patients who were over 67 years. Factors associated with ΔSTEF improving JOA in 67 years and older. b The independent factor for improvement of JOA score in patients who were less than 67 years. Factors associated with Δgrip strength improving JOA below 67 yearsBack to article page