Bone Abstracts

Objectives: Adolescent idiopathic scoliosis (AIS) was associated with low bone mass which, apart from being an important health issue that could persist into adulthood, was also a significant prognostic factor for curve progression in AIS. We have performed a randomized controlled trial on whole-body vibration (WBV) and reported its effect on increasing femoral neck areal bone mineral density (aBMD) mainly at the dominant leg. The objective of this study was to evaluate the ro...

Objectives: Multiple studies have documented the presence of systemic osteopenia in adolescent idiopathic scoliosis and in simulated animal models. Osteopenia was also found to be associated with severe curves and as one of the prognostic factor in predicting curve progression in AIS. The objective of this study was to compare the bone quality and its association with osteopenia between AIS and normal controls.Methods: AIS (n=234) and non-AIS gi...

Introduction: Adolescent idiopathic scoliosis (AIS) is associated with osteopenia, which was found to be a significant prognostic factor for curve progression. However, in-depth quantitative assessment of bone quality was previously hampered by invasive nature of the investigations. The recently available high-resolution pQCT (HR-pQCT) allows a three-dimensional assessment of the bone quality in-vivo. This study aimed to evaluate and compare the bone quality in AIS gi...

Objectives: Vitamin D is essential for bone modeling/remodeling but the relationship between vitamin D status, bone mineral density (BMD) and bone quality parameters remains controversial especially in adolescent population. The aims of this study wase to evaluate the vitamin D status and its correlation with BMD and bone quality parameters among adolescent girls in Hong Kong where information is lacking.Methods: 156 adolescent girls (11–15 years ol...

Introduction and objective: Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity with lateral curvature of ≧10 degree measured by Cobb angle. Previous studies reported that ~30% of female AIS patients had systemic osteopenia which could persist beyond skeletal maturity and that was one of the important prognostic factors. The aim of this study is to investigate the incremental prognostic value of osteopenia on curve progression in AIS as defined...

Objectives: AIS is a prevalent three-dimensional spinal deformity associated with low bone mass which has been reported to be a significant prognostic factor for curve progression in AIS. If left untreated, low bone mass in AIS could persist into adulthood thus leading to subsequent health problems. This study aimed at evaluating the therapeutic effect of oral calcium plus Vit-D supplementation for low bone mass in skeletally immature AIS girls.Methods: ...

Objectives: Adolescent Idiopathic Scoliosis (AIS) is associated with low bone mass. This study aimed at evaluating the therapeutic effect and its determinants of Ca+Vit-D supplementation in improving bone strength and preventing curve progression in AIS.Methods: This was a randomized double-blinded placebo-controlled trial recruiting AIS girls (11–14 years old, Tanner stage<IV) with femoral neck BMDZ-scores<0 and Cobb angle≥15°. 3...

Introduction and objective: Adolescent idiopathic scoliosis (AIS) is a structural spinal deformity characterized by 3D deformity with lateral curvature of ≧10° as measured by Cobb angle and is predominately seen in girlsaged between 10 and 16-years-old. Low bone mass has been found to be a significant prognostic factor for curve progression in AIS.In our hospital, computed assisted navigation is used for intraoperative pedicle screw placement...