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Hemivertebra Excision in Children Via Simultaneous Anterior and Posterior Exposures

Hedequist, Daniel J. MD; Hall, John E. MD; Emans, John B. MD

Spine: Original Article

This study evaluates the effectiveness of hemivertebra excision in children via simultaneous anterior and posterior operative exposures. This study was a retrospective review of patients treated with this technique over a 5-year period with minimum 2-year follow-up. Eighteen patients were studied, all of whom had undergone hemivertebra excision and deformity correction using unilateral compression instrumentation. The average age of the patients at the time of operation was 3 years 2 months and the average preoperative coronal curve measured 40°. There were no neurologic complications. At an average follow-up of 35 months all patients had obtained bony fusion; the average coronal curve measured 11° for an average percentage correction of 71%. Hemivertebra excision by simultaneous exposure is an effective and safe way of managing congenital hemivertebra, and the correction is similar to staged anterior-posterior procedures or posterior-only procedures.

From Children's Hospital/Harvard Medical School, Boston, Massachusetts.

Study conducted at Children's Hospital/Harvard Medical School, Boston, Massachusetts.

None of the authors received financial support for this study.

Reprints: Daniel Hedequist, MD, Children's Hospital, 300 Longwood Avenue, Boston, MA 02116 (e-mail:

© 2005 Lippincott Williams & Wilkins, Inc.