Chondrodiatasis-controlled symmetrical distraction of the epiphyseal plate. Limb lengthening in children.
We describe a technique for slow, progressive, symmetrical distraction of the growth plate using a lightweight dynamic axial fixation system. Results are given for the elongation of 40 bony segments in children with limb-length discrepancies and 60 segments in children with achondroplasia or hypochondroplasia. Increases in limb length of up to 36% were obtained in non-achondroplastic and up to 64.5% in achondroplastic patients. There were no nerve or vascular lesions or bony infections and no case required a bone graft. Pin-track complications occurred in only 1.5%.
D000130:Achondroplasia / Q000000981:diagnostic imaging / Q000601:surgery*; D000293:Adolescent; D001852:Bone Lengthening / Q000379:methods*; D002648:Child; D005260:Female; D006132:Growth Plate / Q000601:surgery*; D006801:Humans; D008297:Male; D011859:Radiography; D014945:Wound Healing