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Stereophotogrammetry of the Lumbar Spine: A Technique for the Detection of Pseudarthrosis

MORRIS, JAMES, MD*; CHAFETZ, NEIL, MD; BAUMRIND, SHELDON, DDS; GENANT, HARRY, MD§; KORN, EDWARD L., PhD

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A computer-assisted photogrammetric method for the detection of pseudarthrosis following spinal fusion is described. This radiologic method is quantitative and noninvasive and requires a minimum of clinician time. Results of tests with a phantom specimen are presented. Preliminary indications are that the method may prove to be a useful adjunct to the clinician in monitoring the postoperative course of patients requiring fusion procedures.

*From the Department of Orthopaedic Surgery, University of California, San Francisco

†From the Department of Radiology, University of California, San Francisco

‡From the Departments of Growth and Development, Radiology, Orthopaedic Surgery, University of California, San Francisco

§From the Skeletal Section, Department of Radiology, University of California, San Francisco

¶From the Department of Biomathematics, School of Medicine, University of California, Los Angeles, California

© Lippincott-Raven Publishers.