Article thumbnail

Vertebral rotation measurement: a summary and comparison of common radiographic and CT methods

By Gabrielle C Lam, Doug L Hill, Lawrence H Le, Jim V Raso and Edmond H Lou


Current research has provided a more comprehensive understanding of Adolescent Idiopathic Scoliosis (AIS) as a three-dimensional spinal deformity, encompassing both lateral and rotational components. Apart from quantifying curve severity using the Cobb angle, vertebral rotation has become increasingly prominent in the study of scoliosis. It demonstrates significance in both preoperative and postoperative assessment, providing better appreciation of the impact of bracing or surgical interventions. In the past, the need for computer resources, digitizers and custom software limited studies of rotation to research performed after a patient left the scoliosis clinic. With advanced technology, however, rotation measurements are now more feasible. While numerous vertebral rotation measurement methods have been developed and tested, thorough comparisons of these are still relatively unexplored. This review discusses the advantages and disadvantages of six common measurement techniques based on technology most pertinent in clinical settings: radiography (Cobb, Nash-Moe, Perdriolle and Stokes' method) and computer tomography (CT) imaging (Aaro-Dahlborn and Ho's method). Better insight into the clinical suitability of rotation measurement methods currently available is presented, along with a discussion of critical concerns that should be addressed in future studies and development of new methods

Topics: Review
Publisher: BioMed Central
OAI identifier:
Provided by: PubMed Central

Suggested articles


  1. Coupling mechanisms in the scoliotic spine.
  2. (1997). JK: Lateral flexion induced axial rotation in adolescent idiopathic scoliosis (AIS).
  3. (2002). Skalli W: Comparison of mechanical behavior of normal and scoliotic vertebral segment: a preliminary numerical approach. Stud Health Technol Inform

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.