Combined technique of titanium telescopic rods and external fixation in osteogenesis imperfecta patients: First 12 consecutive cases.

Journal of Orthopaedics
Dmitry PopkovAndrey Kobyzev

Abstract

The major limitation of any intramedullary telescopic system is rotational and longitudinal instability. The combination of telescopic system with an external fixator in patients with osteogenesis imperfecta (OI) demonstrated advantages of stability, early weight-bearing and rehabilitation. This study aimed to examine the outcomes of deformity correction by combined technique uniting titanium telescopic rod and reduced Ilizarov frame in children with types III or IV of OI with a minimum 1-year follow-up. The study included 12 children with OI who underwent femoral deformity correction (20 segments) or tibial deformity correction (4 segments) by combined technique. The children ranged in age between 2 years and 3 months and 12 years and 4 months (mean: 8.9 ± 2.02 years) at the time of the rodding. Parameters of surgery, clinical examination data, data of 3D gait analysis were assessed in the study. External fixation lasted 35.8 ± 13.2 days in average. Neither loss of threaded fixation in the distal femoral and tibial epiphyses and apophysis of the greater trochanter nor migration of the rod into the knee and ankle joints were observed in follow-up. No secondary rotational or longitudinal bone displacement was noted. Telescoping ...Continue Reading

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