The technology of computer-assisted six-axis frames is rapidly evolving. In this case report, we describe two cases of pediatric lower limb deformities treated by a novel hexapod device, the iFIXation system. For our knowledge, this is the first report in literature for its usage. The first case was a 14-years-old girl with posttraumatic shortening, varus and external rotation deformities of her lower limb around the ankle. All the deformities and shortening were corrected simultaneously with the iFIXation system. The second case was an 8-years-old girl with postinfection valgus and external rotation of the knee as well as shortening of the femur. Distal femoral deformities and shortening were simultaneously corrected by the iFIXation system and growth modulation to prevent recurrence of the deformity was done. The reported cases represent our earliest experience with the iFIXation system.
Every long bone fracture in orthopedic surgery represents a possible scenario for devel- opment of embolism complication, especially the fat embolism. There is no scientific explanation why fat embolism occurs and what are the hypotheses for development of fat embolism or the proper way of prevention, but just speculations and possible theories in the evolution of the clinical picture of fat embolism syndrome. Throughout this chap- ter, the authors will explain the possible theories of development of fat embolism, risk factors, pathology, and pathophysiology during progress of the clinical picture and signs of the fat embolism syndrome and therapy.
INTRODUCTION Congenital pseudarthrosis of tibia is a rare congenital deformity with progressive evolution. Treatment is vague and difficult, and many methods have been used--from once mandatory early amputation to contemporary operative (Ilizarov method, free microvascular fibular graft) and adjuvant methods (electrostimulation, biphosphonates, bone morphogenetic protein). We present the usage of once popular method of homologous graft insertion and intramedullary fixation. CASE OUTLINE This is a case report of male patient with pseudarthrosis involving both crural bones (Boyd type 5), diagnosed in neonatal age. Early conservative treatment was unsuccessful, so child never initiated gait. At the age of three and a half years, operative treatment was applied: resection of pseudarthrosis on both tibia and fibula, and osteoplasty of tibia using cylindric homologous graft and intramedullary fixation with transtarsal Steinman pin, followed by long leg cast immobilization. Pin was removed after ten months, and physical therapy was initiated 1.5 year after surgery, with initial to partial weight bearing and short leg cast throughout another year. Two and a half years after surgery complete union of graft was documented, and then full weight bearing was allowed. At final visit, five years and three months after surgery, shin axis was correct, leg lengths were equal, and child had normal walk with full range of motion. X-ray showed complete union of both tibia and fibula. CONCLUSION Despite bad prognostic factors (young age, severe deformity), utilization of obsolete and almost forgotten treatment methods can provide excellent result.
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