title: Calculating rate and duration of distraction for deformity correction with the Ilizarov technique.
abstract: Longitudinal bone lengthening with distraction histogenesis is typically carried out at a rate of 1 mm per day. Angular corrections require an adjustment of the rate of distraction according to the geometry of the external fixator relative to the bone or soft tissue being lengthened. Modeling the deformity correction construct using simple geometric principles allows calculation of both the rate of correction and the expected duration of distraction.
authors.affiliation: Section of Orthopaedic Surgery, University of Maryland Medical School, Baltimore.
authors.forename: J E
authors.initials: JE
authors.lastname: Herzenberg
authors.forename: N A
authors.initials: NA
authors.lastname: Waanders
mesh_terms: D001852:Bone Lengthening / Q000379:methods*; D016267:External Fixators; D006801:Humans; D007870:Leg Length Inequality / Q000175:diagnosis* / Q000473:pathology; D010027:Osteotomy / Q000379:methods; D010353:Patient Education as Topic; D013977:Tibia / Q000002:abnormalities / Q000473:pathology; D013997:Time Factors