Computer-Aided Management in Scoliosis Surgery

We developed a portable software that allows users to conveniently determine the Cobb angle, the rigidity, and shift of the spinal cord based on the radiographs of scoliosis patients. The software is developed on the MATLAB platform, small in size and easy to be installed and used without formal training or special skills. The radiographs can be uploaded from a data file of a radiographic equipment. The operator uses a pointing device to draw two lines that go through the upper and lower endplates of the selected vertebrae. The software then automatically calculates the Cobb angle and the spinal cord shift. From the bending posture radiographs the system calculates the spinal rigidity. A comparative study on 20 cases using our software, a commercially available software called eFilm and by hand was conducted. The results showed that although the average values obtained from all three methods were not statistically different, our software yielded more reliable results and the measurement time was shorter. Our software therefore is a useful tool to assist the treatment of scoliosis in clinics.

[1]  K. Shea,et al.  A Comparison of Manual Versus Computer‐Assisted Radiographic Measurement: Intraobserver Measurement Variability for Cobb Angles , 1998, Spine.

[2]  Edmond Lou,et al.  Validity and Reliability of Active Shape Models for the Estimation of Cobb Angle in Patients with Adolescent Idiopathic Scoliosis , 2008, Journal of Digital Imaging.

[3]  J. Pruijs,et al.  Variation in Cobb angle measurements in scoliosis , 1994, Skeletal Radiology.

[4]  J. Lonstein,et al.  Adolescent idiopathic scoliosis , 1994, The Lancet.

[5]  Yuanyuan Wang,et al.  Automatic Cobb Measurement of Scoliosis Based on Fuzzy Hough Transform with Vertebral Shape Prior , 2009, Journal of Digital Imaging.

[6]  I. Stokes,et al.  Reexamination of the Cobb and Ferguson angles: bigger is not always better. , 1993, Journal of spinal disorders.

[7]  Yuanyuan Wang,et al.  Computer-aided assessment of scoliosis on posteroanterior radiographs , 2010, Medical & Biological Engineering & Computing.

[8]  E. Bleck,et al.  The radiographic assessment of spinal flexibility in scoliosis: a study of the efficacy of the prone push film. , 1982, Clinical orthopaedics and related research.

[9]  K. Cheung,et al.  Prediction of Correction of Scoliosis with Use of the Fulcrum Bending Radiograph* , 1997, The Journal of bone and joint surgery. American volume.

[10]  Cobb,et al.  Outlines for the study of scoliosis , 1948 .

[11]  M. Ylikoski,et al.  Measurement variations in scoliotic angle, vertebral rotation, vertebral body height, and intervertebral disc space height. , 1990, Journal of spinal disorders.

[12]  T. Cochrane,et al.  Computer-assisted Cobb measurement of scoliosis , 2002, European Spine Journal.

[13]  E. Hall,et al.  Measurement of the Cobb angle on radiographs of patients who have scoliosis. Evaluation of intrinsic error. , 1990, The Journal of bone and joint surgery. American volume.