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Minimal invasive epiphysiodesis using a modified "Canale"-technique for correction of angular deformities and limb
Leonhard E Ramseier1, Atul Sukthankar, G Ulrich Exner
1Department of Orthopaedics, University of Zurich, Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland, leonhard.ramseier@balgrist.ch.
Purpose:
Leg length discrepancy and angular deformities can, in contrast to adults; easily be corrected with epiphysiodesis during growth. Goal of this study was to evaluate our results of a modified Canale technique for definitive epiphysiodesis treating leg length discrepancy and also angular deformities.
Methods:
Between 2000 and 2007, 22 patients (11 boys and 11 girls) were subjected to definitive epiphysiodesis. In total 73 hemiepiphysiodesis were performed (26 proximal tibial, 47 distal femoral).
Results:
All patients could be followed to the end of growth. Mean follow-up was 32.2 month (range 13-76 months). In 20 patients the epiphysiodesis was planed to correct axis and leg length discrepancy. In two patients' contralateral epiphysiodesis was performed to avoid further leg length discrepancy because of closed physis of the shorter affected side. A staged procedure was necessary in nine patients to achieve the best possible correction. No complications were seen such as wound healing, knee-joint contractures after epiphysiodesis of the distal femur and proximal tibia. In two patients three rehemiepiphysiodesis because of not fully closure of the physis had to be done.
Conclusion:
Definitive epiphysiodesis using this modified Canale technique is a safe, minimal invasive method to correct leg length discrepancy and angular deformities if preoperative planning is performed properly.