Fusionless scoliosis correction using a shape memory alloy staple in the anterior thoracic spine of the immature goat

Spine
John T BraunKent N Bachus

Abstract

Experimental scoliosis was created in goats and then treated using anterior thoracic stapling. To correct, without fusion, a progressive idiopathic-type scoliotic deformity in an immature goat model using a shape memory alloy staple. Fusionless scoliosis treatment techniques, using minimally invasive approaches to the anterior thoracic spine, provide theoretical advantages over currently available forms of treatment. Experimental scoliosis was created in 40 goats using a posterior asymmetric tether with convex rib resection and concave rib tethering for a period of up to 15 weeks. Twenty-seven goats with progressive deformities were used for subsequent study and randomized into 4 treatment groups: group I, anterior thoracic stapling with removal of the posterior tether; group II, removal of the posterior tether only; group III, anterior thoracic stapling with persistent posterior tethering; and group IV, persistent posterior tethering with no treatment. The treatment period lasted an additional 6 to 14 weeks. Staple backout was graded radiographically. After killing the goats, histology and disc biochemistry analyses were conducted. The goats in group I corrected from an initial 57 degrees of curvature to 43 degrees over the du...Continue Reading

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Citations

May 12, 2011·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·Th OdentE Viguier
Aug 23, 2011·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·Mark DriscollStefan Parent
Oct 27, 2012·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·Jean Ouellet, Thierry Odent
Sep 3, 2005·Spine·John T BraunJames W Ogilvie
Apr 7, 2007·Spine·Christian M PuttlitzEmre Acaroglu
May 16, 2009·Spine·Frank SchwabJean-Pierre Farcy
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