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Clinical Efficacy of Ultrasound-Assisted Scoliosis-Specific Exercise in Mild-Grade Adolescent Idiopathic Scoliosis
Published on: December 2, 2025
The effect of scoliosis surgery on lung function in the immediate postoperative period
Nanci Yuan1, Javier A Fraire, Monique M Margetis
1Division of Pediatric Pulmonology, Childrens Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
Insights
Pediatric scoliosis surgery significantly reduces pulmonary function (PFT) by up to 60%, with full recovery taking 1-2 months. This decline poses a risk for postoperative complications up to one week after surgery.
Area of Science:
- Pediatric surgery
- Pulmonary medicine
- Orthopedics
Background:
- Pediatric scoliosis surgeries are increasing due to surgical advancements.
- Postoperative pulmonary function decline is significant but not well-documented in children.
- Understanding this decline is crucial for assessing postoperative complication risks.
Purpose of the Study:
- To quantify the immediate changes in pulmonary function tests (PFTs) in children after scoliosis surgery.
- To establish the duration of PFT decline post-surgery.
Main Methods:
- Prospective, single-cohort study involving 24 children undergoing scoliosis surgery.
- Daily bedside spirometry measured PFTs (FEV1, FVC, FEV1/FVC, FEF25%-75%) pre- and post-surgery until discharge.
- Patients' demographics and surgical details (etiology, fusion type) were recorded.
Main Results:
- Pulmonary function tests (PFTs) declined by up to 60% post-surgery, reaching nadir at 3 days.
- PFTs remained significantly decreased (approx. 50% of baseline) at 1 week post-surgery.
- No correlation found between PFT decline and scoliosis etiology or surgical approach.
Conclusions:
- Children remain at risk for postoperative complications for up to one week following scoliosis surgery.
- Near-baseline PFT values are not typically regained until 1-2 months post-surgery.
- Postoperative PFT decline must be considered in preoperative risk assessments for pediatric scoliosis patients.
Study Design:
Prospective, single-cohort study.
Objectives:
To determine the immediate change in pulmonary function test (PFT) in children following scoliosis surgery.
Summary Of Background Data:
The number of pediatric scoliosis surgeries is increasing each year because of recent advances in spinal instrumentation, surgical techniques, and improved perioperative monitoring. Pulmonary function decreases immediately following scoliosis surgery, but the extent of this decrease is not well documented in pediatric patients. To use preoperative PFTs to assess the risk of postoperative complications, knowledge of the postoperative decline in PFT is necessary.
Methods:
We measured preoperative and daily postoperative PFT in 24 children who had scoliosis surgery (age 12.7 +/- 2.7 [SD] years) from January 2002 to June 2003. There were 10 male and 14 female patients. Two (8%) patients had congenital scoliosis, 11 (46%) had idiopathic scoliosis, 9 (38%) had scoliosis due to a neuromuscular disease, and 2 (8%) had kyphoscoliosis. Fifteen (62%) patients had posterior spinal fusion (PSF), 5 (21%) had anterior spinal fusion (ASF), and 4 (17%) had both ASF and PSF performed. PFT parameters (forced expiratory volume in 1 second [FEV1], forced vital capacity [FVC], FEV1/FVC, and forced expiratory rate between 25% and 75% of FVC [FEF25%-75%]) were measured before surgery and daily after surgery by bedside spirometry until hospital discharge.
Results:
PFT declined up to 60% after surgery. The PFT nadir is at 3 days. PFT values remained significantly decreased at 1 week, with values at about half of preoperative baseline. No patient required postoperative mechanical ventilation > or =3 days. There was no statistical significance between the degree of decline in PFT with etiology of either the scoliosis or the type of surgery performed.
Conclusions:
Our study found that patients are still at risk for postoperative complications as long as 1 week postoperatively and that PFTs do not return to near baseline until 1 to 2 months after surgery. The postoperative decrease in PFT should be considered during preoperative prediction of postoperative risk.
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