# Evaluation of a Primary Health Care Scoliosis Screening Program: A 9-Year Follow-Up Study

## TL;DR

A 9-year study in Spain found that a scoliosis screening program had low attendance and limited effectiveness due to lack of proper tools and training.

## Contribution

This study evaluates the long-term effectiveness of a multi-phase scoliosis screening program in primary care.

## Key findings

- Only 15.3% of children completed all three screening phases, with attendance dropping significantly over time.
- Visual forward bending tests without scoliometer quantification had low sensitivity and high false positives.
- Nine years later, most adolescents had mild vertebral rotation, suggesting limited progression in detected cases.

## Abstract

Background/Objectives: Scoliosis screening aims to detect spinal deformities early and prevent progression. The Programa de Atención a la Salud de Niños y Adolescentes (PANA) in Spain includes primary care screenings at ages 5–6, 10–11, and 13–14, but its effectiveness remains unverified. First, we evaluated attendance rates in each phase. Second, a nine-year follow-up was used to determine outcomes in adolescents who completed all three phases of PANA. Methods: A retrospective–prospective cohort study was conducted. The retrospective phase analyzed records of 881 schoolchildren screened at a primary healthcare center in Lorca, Spain. The prospective phase re-evaluated 127 adolescents (94.1% of those who completed all three phases) after nine years using a standardized forward bending test (FBT) with scoliometer quantification. Results: Attendance declined from 73.2%, at age 5–6, to 20.5%, at age 13–14. Only 15.3% completed all three phases. At age 13–14, 11.1% had a positive FBT by visual assessment. Non-quantified FBT had low sensitivity (5.9%) but high specificity (96.7%). Nine years later, mean scoliometer-measured vertebral rotation was 3.6 ± 1.7° (thoracic) and 2.5 ± 1.4° (lumbar). Scoliosis suspicion (FBT > 5°) was 15.1%, but applying the FBT > 7° threshold it was reduced to 4%. Conclusions: The PANA program has limited effectiveness due to low attendance and lack of scoliometer use. Visual FBT without quantification increases false positives, reducing diagnostic accuracy. It is recommended that preventive assessments be conducted in schools by primary care physicians. Training in the use of the scoliometer is essential to improve scoliosis detection.