Abstract

Introduction: The anatomy of lumbar vertebrae is vital in understanding pathogenesis of chronic back pain and instrumentation during spinal procedures. The purpose of the study is to quantify the linear and angular parameters of the lumbar pedicles and its association with osteophyte formation. Methods: Forty-six ossified dry lumbar vertebrae of Indian origin, age ranging from 55-75 years of unknown sex were studied. Their pedicle length (PL), width (PW) and height (PH) were measured using digital Vernier caliper. The superior and lateral view digital photographs of the vertebrae were taken and its transverse pedicle angle (TPA) and sagittal pedicle angle (SPA) were measured using image J software. Results: The vertebrae were given scores from 0 to 4 depending upon the osteophyte formation in body and lamina. The mean and standard deviation of the pedicle parameters were comparable with previously available studies. Results: On correlating the parameters with the osteophyte scoring, the SPA (p value = 0.017, r = 0.350) and PH (p value = 0.015, r = 0.357) showed a positive correlation. Conclusion: The data obtained from the study indicates the role of morphometry and angulation of the pedicle in degenerative changes of spine. These parameters can be used in radiology as a marker to detect early degenerative changes.

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