RT Journal A1 Karol, Lori A. T1 Commentary on an Article by S. Bess, MD, et al.: “Complications of Growing-Rod Treatment for Early-Onset Scoliosis. Analysis of One Hundred and Forty Patients” JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2010 FD November 3 VO 92 IS 15 SP e27 1 OP 2 DO 10.2106/JBJS.J.01209 UL http://dx.doi.org/10.2106/JBJS.J.01209 AB This important paper reviews the results of growing-rod spinal instrumentation in 140 children treated by members of the Growing Spine Study Group over an eighteen-year time period. This series represents the largest cohort of patients with early-onset scoliosis treated with growing-rod instrumentation in the literature. The authors do not report on patients with a single diagnosis; instead, they include those with neuromuscular, idiopathic, and congenital scoliosis. The mean age at the time of implantation of the growing rods was six years (range, 1.7 to ten years), and the initial curve magnitude averaged 75° (range, 32° to 147°). An average of 6.4 procedures (range, two to fifteen) were performed per child. Surprisingly, only seventy-four surgical procedures were unplanned.