The Journal of Bone and Joint Surgery (American). 2007;89:2456-2459.
doi:10.2106/JBJS.F.01267
© 2007 The Journal of Bone and Joint Surgery, Inc.
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Magnetic Resonance Imaging of Renal Abnormalities in Patients with Congenital Osseous Anomalies of the Spine

Anthony I. Riccio, MD1, James T. Guille, MD2, Leslie Grissom, MD3 and T. Ernesto Figueroa, MD3

1 Naval Medical Center of San Diego, 34800 Bob Wilson Drive, Building 1, Suite 112, San Diego, CA 92134
2 Brandywine Institute of Orthopaedics, 600 Creekside Drive, Suite 611, Pottstown, PA 19464. E-mail address: guille{at}brandywineortho.com
3 Alfred I. duPont Hospital for Children, 1600 Rockland Road, P.O. Box 269, Wilmington, DE 19899

Investigation performed at the Alfred I. duPont Hospital for Children, Wilmington, Delaware

Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. No commercial entity paid or directed, or agreed to pay or direct, any benefits to any research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which the authors, or a member of their immediate families, are affiliated or associated.

Background: Patients with congenital osseous anomalies of the spine are known to have a high prevalence of abnormalities in the renal system and of the spinal cord. Today, the screening tools of choice to detect these abnormalities include ultrasonography of the kidneys and collecting system and magnetic resonance imaging of the spine. A single screening tool that can identify both renal and intraspinal anomalies would be ideal.

Methods: Imaging studies of all patients with a congenital osseous anomaly of the spine seen at our institution during a ten-year period were retrospectively reviewed. Only patients who had had both a sonogram of the renal system and a magnetic resonance imaging study of the entire spine were included in the investigation. All studies were reviewed blindly by a pediatric radiologist for this study.

Results: One hundred and fifty-three patients met the criteria for inclusion in the study. Forty-one patients (27%) had a total of forty-seven renal abnormalities noted on both the sonogram and the magnetic resonance imaging scan. In no instance was a renal anomaly seen on one study and not on the other.

Conclusions: When properly performed, screening magnetic resonance imaging scans of the spine can show renal abnormalities, thus obviating the need for a separate screening renal ultrasound study.

Level of Evidence: Diagnostic Level IV. See Instructions to Authors for a complete description of levels of evidence.


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