Four years elapsed since the treatment of long bone fractures with Fixion intramedullary self locking nails had been proposed. The aim of this prospective study was to evaluate on a 2 year; follow up the efficacy of diaphyseal fracture's treatment using the Fixion nail. A consecutive series of 102 acute diaphyseal fractured patients operated on with the expandable nailing system, fulfilling indusion and exclusion criteria, were selected. No reaming or interlocking screws had been used. Eighty-two (41 tibial, 25 femoral and 16 humeral fractured) out of 102 patients with a mean age of 46.2 years (15-72) were undertaken over a 24 months follow up (80.3 percent of response rate). Radiological examinations were performed 30 and 50 days after surgery and every 40 days until consolidation occurred. Roentgenographic success criterion was bridging of all four cortices in the anteroposterior and lateral radiographic views. Clinical outcome was evaluated according the Musculoskeletal Function Assessment. Bony healing with fragment alignment and exact length of bone was achieved in the 95 percent of fractures with a mean consolidation time of 9,7 weeks. Two cases of hardware failure were observed, 2 oligoatrophic pseudoarthroses occurred. No infections were reported. Seventy-six patients returned to their previous occupation, 5 patients had to change office due to residual disturbances; one patient was out of work. Results achieved let us to consider the Fixion" system an effective minimally invasive procedure for long bone diaphyseal fracture both considering the high success rate and the reduced exposure and time of surgery.
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