A study recently published in Spine examines whether anchor density is associated with curve correction and patient-reported outcomes in adolescent idiopathic scoliosis surgery.
The researchers examined 952 patients with adolescent idiopathic scoliosis and found high-anchor density was associated with increased percent curve correction in Lenke 1 curves at one year after surgery when compared with low-anchor density. High-density screw patients with Lenke 2 curves experienced increased percent correction at two years postoperatively.
The researchers also found:
• Decreased thoracic kyphosis with increased anchor density in patients with Lenke 1 and 2 curves
• No association between anchor density for patients with Lenke 5 curves
• SRS Activity, Satisfaction and Total scores were statistically higher for high anchor density patients with Lenke 1 curves
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