Ten-year follow-up study of lower thoracic hemivertebrae treated by convex fusion and concave distraction

Spine
Kenneth M C CheungJohn C Y Leong

Abstract

A retrospective review of patient records with recent clinical and radiologic assessment was conducted. To evaluate the long-term results of fully segmented hemivertebrae treated by convex fusion combined with instrumented concave subcutaneous distraction. Convex fusion has been described for the treatment of hemivertebrae in children, whereas distraction without fusion has been shown to enhance spinal growth. No long-term follow-up studies have combined these two methods. Between 1986 and 1994, six consecutive patients (5 males and 1 female) with hemivertebrae located at T11 or T12 underwent convex anterior and posterior fusion as well as concave subcutaneous distraction without fusion. The mean age at surgery was 3.4 years. The mean follow-up period was 10.8 years (range, 8-14 years). There was a mean improvement of 41% in the coronal deformity, from a mean angle of 49 degrees before surgery to 29 degrees at the latest follow-up assessment. In four of the cases, this correction was achieved immediately after surgery and did not significantly change despite repeated distraction. The kyphosis improved in three cases, remained unchanged in one case, and deteriorated in two cases. In these two cases, an adjacent wedge vertebra co...Continue Reading

References

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Citations

Nov 18, 2003·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·V ArletM Aebi
Sep 30, 2008·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·E GarridoT R Morley
Dec 15, 2010·Journal of Pediatric Orthopedics·Hazeem B ElsebaiBehrooz A Akbarnia
Mar 25, 2009·Journal of Children's Orthopaedics·Ibrahim Akel, Muharrem Yazici
Mar 27, 2015·Journal of Pediatric Orthopedics·Gokhan DemirkiranMuharrem Yazici
Sep 30, 2004·Journal of the American College of Surgeons·Francis H Shen, John P Lubicky
Aug 6, 2018·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Charles E MackelSteven W Hwang
Apr 13, 2011·Clinical Orthopaedics and Related Research·Ahmet AlanayMuharrem Yazici
Sep 29, 2005·The Journal of Bone and Joint Surgery. British Volume·Y L Leung, N Buxton
Oct 31, 2019·JBJS Reviews·Umut Can KaraarslanAhmet Alanay
Jan 15, 2014·Annals of the Royal College of Surgeons of England·X ZhuB Ran
May 3, 2006·The Journal of Bone and Joint Surgery. American Volume·Gérard BolliniJean-Luc Jouve

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