Retrospective Study on the Outcome of Deformity Correction and Distraction Osteogenesis in Deformed Femur Using Orthofix-LRS

Background: Femoral deformities, whether congenital or acquired, significantly impair mobility and quality of life.Deformity correction and distraction osteogenesis are proven techniques for limb reconstruction.The use of the Orthofix Limb Reconstruction System (LRS) offers a promising method for achieving precise deformity correction with minimal complications.Methods: A retrospective study was conducted Dr B R Ambedkar Medical College and Hospital, in which twenty patients between Jan 2021 and May 2023, who had undergone limb lengthening and deformity correction of femur using Orthofix-LRS were included in the study and data collected after a two year follow up period included the amount of lengthening achieved and the degree of deformity corrected based on clinical measurements and radiographic assessments.Results: The mean age was 24.43 years, with the majority in the 20-32 age group.Most patients were male (85%).The average angular deformity corrected was 21 degrees (range, 10-32) with subsequent average lengthening of 5.43 cm (range, 2.5-11.5).The average of the healing index of regenerate was 32.29days/cm (range, 26.33-71.5 days/cm).All of them needed a prolonged fixator carrier period, at an average of 59.64 days for each centimetre of lengthening.Significant complications include one broken regenerate and one lateral angulation deformity of the sub-trochanteric region. Conclusion:The study concludes that the monolateral external fixator Orthofix-LRS can be effectively utilised in the management of limb length discrepancy with angular deformity, as it provides stable fixation for diaphyseal lengthening and correction of metaphyseal deformity.