title: Distraction instrumentation outcomes in scoliosis.
abstract: The short-term outcomes of a new distraction technique using a small rod spinal instrumentation system (WRIGHTLOCK) are reported for adolescent idiopathic scoliosis. No caudally directed thoracic hooks were used. Seventy-four children aged 11.7 to 17.5 years who underwent consecutive posterior instrumentations are reviewed. Their curves improved from a mean of 55.6 degrees to 22.7 degrees (average of 59.2% correction). At 2.7 years mean follow-up, coronal curves lost an average of 4.2 degrees correction. Overall, there was a mean increase of 4.4 degrees in kyphosis. Children with the most preoperative hypokyphosis were afforded the greatest gains in kyphosis. Instrumentation resulted in a mean loss of 8.2 degrees lumbar lordosis. These results compare favorably with published results for other multihook systems.
authors.affiliation: Shriners Hospitals for Children, Greenville, South Carolina, SC 29605, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: Stasikelis
authors.forename: L I
authors.initials: LI
authors.lastname: Pugh
authors.forename: R L
authors.initials: RL
authors.lastname: Ferguson
authors.forename: B L
authors.initials: BL
authors.lastname: Allen
mesh_terms: D000293:Adolescent; D002648:Child; D004867:Equipment Design; D005260:Female; D006801:Humans; D016268:Internal Fixators; D008297:Male; D019857:Osteogenesis, Distraction / Q000295:instrumentation* / Q000379:methods; D012600:Scoliosis / Q000601:surgery*; D016896:Treatment Outcome