AAOS: Effect of implant density on curve correction in adolescent idiopathic scoliosis .
Are More Screws Better? A Systematic Review of the Implant Density and Curve Correction in AIS
Nine studies (882 patients) were identified to determine whether increased implant density during adolescent idiopathic scoliosis (AIS) surgery improved coronal curve correction and clinical outcomes. Seven of the nine studies indicated that patient-reported outcomes and curve correction were maintained regardless of anchor density. However, conclusions from this systematic review should be drawn with caution as the sample sizes of the included trials were significantly underpowered to detect a difference in outcome.
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