Hemivertebra Excision in Children Via Simultaneous Anterior and Posterior ExposuresHedequist, Daniel J. MD; Hall, John E. MD; Emans, John B. MDJournal of Pediatric Orthopaedics: January/February 2005 - Volume 25 - Issue 1 - pp 60-63 Spine: Original Article Abstract Author Information 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: firstname.lastname@example.org). © 2005 Lippincott Williams & Wilkins, Inc.