Authors (including presenting author) :
Leung KHH(1), Chan CY(1), Hui WHC(1), Tsui YCA(1), Yeung KCA(1), Lau YCA(2), Hung LKA(2), Lam TP(2), Cheng CYJ(2), Leung A(3) Tsang MHS(4)
Affiliation :
(1)Physiotherapy Department, Prince of Wales Hospital (2)Orthopaedics and Traumatology Department, Prince of Wales Hospital (3)International Schroth Three-Dimensional Scoliosis Therapy (4)Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
Keyword 1: :
new AI technology
Keyword 2: :
real-time feedback
Keyword 3: :
Scoliosis 3D postural correction
Introduction :
Adolescent idiopathic scoliosis (AIS) is a complex three-dimensional spinal deformity that often progresses during growth. Conservative management aims to correct posture, stabilize curve progression, and enhance functional balance. The Schroth three-dimensional (3D) correction technique, a validated physiotherapeutic scoliosis-specific exercise (PSSE), emphasizes on rotational angular breathing and targeted muscle activation to achieve spinal realignment. However, its immediate biomechanical effects were inadequately quantified.
Objectives :
This study investigated the real-time effects of the Schroth 3D correction technique on spinal alignment in adolescents with idiopathic scoliosis (AIS), using Scolioscan—an artificial intelligence (AI)-assisted, radiation-free ultrasonographic imaging system that provides dynamic and non-invasive curve assessment as a safe and radiation-free alternative to traditional X-ray Cobb angle measurement.
Methodology :
Thirty-two adolescents with idiopathic scoliosis (5 males and 27 females; aged 11–22 years) with baseline mean Cobb angle 27.59° (SD 10.35 ° ) (measured by EOS X-ray) were recruited. Each participant underwent Scolioscan imaging immediately before and after a supervised Schroth 3D postural correction session. Interventions were performed by four certified Schroth therapists trained in standardized Scolioscan operation to ensure methodological consistency. The system provided real-time imaging and continuous feedback during postural correction, enhancing exercise precision and patient engagement.
Result & Outcome :
Following the intervention, the mean thoracic scolioscan angle decreased from mean 22.0° (SD 10.05 ° ) to 16.8° (SD 8.48° ), with a mean reduction of 5.22° (p < 0.001) revealed by paired T-test. The mean lumbar scolioscan angle reduced from mean 19.0° (SD 8.03 ° ) to mean 14.0° (SD 6.33 ° ), a mean reduction of 5.03° (p < 0.001). Both pre-to-post session reductions were statistically significant, demonstrating immediate improvement in postural alignment following the Schroth correction. These findings confirm that integrating AI-enhanced Scolioscan into PSSE practice provides a safe, objective, and dynamic tool for optimizing therapeutic outcomes. Future research should focus on evaluating the long-term sustainability of self-directed postural correction and maintenance of postural awareness after PSSE training to promote lasting functional benefits and patient independence.
