ISSN:
1741-0444
Keywords:
Deformity index
;
Scoliosis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
Abstract In scoliosis, two basic structural changes, i.e. lateral flexion and axial rotation, result in the characteristic spinal deformity. Radiography has proved satisfactory in measuring the lateral flexion deformity. However, at present there is no satisfactory method to measure the rotational deformity. A method to measure the latter deformity by drawing out cross-sections of the trunk has been developed: the projection of a horizontal laser beam on the body surface is detected by an inclined line sensor camera. The laser and line sensor camera are simultanelously moved around the patient and the camera output data are converted, by a minicomputer, into the cross-section on a graphic display or an x-y plotter. To evaluate the deformity of the cross-sections quantitatively, we introduced deformity indices and proposed algorithms for their calculation. Measuring crosssections of 59 scoliosis patients, we analysed the relationship between the deformity indices and the Cobb angle.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02441353
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