title: Comparison of distraction osteogenesis for congenital and acquired limb-length discrepancy in children.
abstract: This study evaluated 116 lower limb lengthenings in 88 consecutive patients (mean age, 13.5 years) treated for congenital (31 patients [46 lengthened segments]) and acquired (57 patients [70 lengthened segments]) limb-length discrepancy. Mean follow-up was 3.8 years. Mean lengthening index was 34+/-16 days/cm in the congenital group and 32+/-9 days/cm in the acquired group; this difference was not statistically significant (P> .05). Mean length of distraction regenerate was 6.4+/-3.7 cm in the congenital group and 5.7+/-2.9 cm in the acquired group; this difference was not statistically significant (P> .05). Lengthening percentage was significantly higher in the congenital group (25+/-17.6) than in the acquired group (19+/-15.4). The increase in the complications rate in congenital limb-length discrepancy correlates with a significantly higher lengthening percentage. Bone regenerate is produced equally regardless of whether the etiology is acquired or congenital.
authors.affiliation: Shriners Hospitals for Children, Honolulu, Hawaii, USA.
authors.forename: Valentin
authors.initials: V
authors.lastname: Antoci
authors.forename: Craig M
authors.initials: CM
authors.lastname: Ono
authors.forename: Valentin
authors.initials: V
authors.lastname: Antoci
authors.forename: Ellen M
authors.initials: EM
authors.lastname: Raney
mesh_terms: D001186:Artificial Limbs; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007870:Leg Length Inequality / Q000151:congenital* / Q000601:surgery*; D008297:Male; D019857:Osteogenesis, Distraction / Q000295:instrumentation* / Q000379:methods*; D016896:Treatment Outcome