Percutaneous partial epiphysiodesis for persistent adolescent genu valgum

Introduction Persistent genu valgum in adolescent induce abnormal gait and functionnal d isturbances. Surgical correction should prevent secondary osteoarthritis. Material and methods Twenty three percutaneous epiphysiodesis in 12 children are reviewed at the end of growth. The surgical technique and the X-ray evaluation and timing calculation of epiphysiodesis according to Bowen are described. Results The supine intermalleolar distance is reduced from 11,8 cm to 2,8 cm. The f emoro-tibial angle is reduced from 12,9 degrees to 7,9 degrees and distance between mechanical axis and center of knee from 25,3 mm to 8,6 mm. These r esults are very good, without any complications. Discussion Percutaneous epiphysiodesis is really a mini-invasive and cost effective me thod for treatment of genu valgum. The results are at least as good as in B lount stapling without any complication or second surgery for hardware remo val. The timing of epiphysiodesis remain a difficult problem and the physic ian should be very cautious in determining the good time for surgery. Conclusion Percutaneous epiphysiodesis is today the treatment of choice for genu valgu m. This method is non invasive and cost effective.