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10-Year Survival 61 Percent for Adult Primary Scoliosis Surgery

TUESDAY, Aug. 12, 2014 (HealthDay News) -- In adult middle-aged patients undergoing primary scoliosis surgery, the 10-year survival rate is 61 percent, according to a study published in the Aug. 1 issue of The Spine Journal.

Felisa Sánchez-Mariscal, M.D., Ph.D., from the University Hospital of Getafe in Madrid, and colleagues retrospectively analyzed survival among a cohort of 59 consecutive adult patients (median age, 42 years). Participants had had a primary surgery for scoliosis (idiopathic or degenerative curves with median preoperative frontal Cobb angle of 59 degrees), with more than four motion levels fused. The median follow-up was 8.5 years.

The researchers found that survival was 89.8 percent at one year, 79.4 percent at two years, 73.4 percent at three years, 64 percent at five years, and 60.9 percent at 10 years. Over one-third of patients (21) underwent revision surgery. Reasons cited for reoperation were painful/prominent implants, adjacent-segment degeneration, and infection. Higher revision rates were seen among American Society of Anesthesiologists Type II patients, those with a double surgical approach, and those with preoperative thoracic kyphosis.

"Risk factors identified for reoperation included patients with higher morbidity, double surgical approach, and preoperative thoracic hyperkyphosis," the authors write.

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