Skip Navigation LinksHome > July/August 2008 - Volume 28 - Issue 5 > Temporary Hemiepiphysiodesis for Idiopathic Genua Valga in A...
Journal of Pediatric Orthopaedics:
doi: 10.1097/BPO.0b013e31817baab2
Lower Extremity: Original Article

Temporary Hemiepiphysiodesis for Idiopathic Genua Valga in Adolescents: Percutaneous Transphyseal Screws (PETS) Versus Stapling

Brauwer, Veerle De MD; Moens, Pierre MD

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Background: Genua valga are not merely a cosmetic problem but also predispose to gonarthrosis in adult life. In our retrospective study of 25 patients, we reviewed our present technique of medial hemiepiphysiodesis using percutaneous screws and compared it with our own results of stapling.

Methods: Clinical evaluation was performed by estimation of the intermalleolar distance, radiological assessment by measuring the hip-knee-ankle angle until skeletal maturity. Average chronological age at the time of surgery was 14.5 years for boys and 12.7 years for girls. Average bone age (main indicator for timing of surgery) was 14.3 years for boys and 12.8 years for girls.

Results: There is an average rebound phenomenon after removal of the screws of 2 degrees in one third of our patients. In another third of our patients' population, however, we observed a progression of correction of an average of 2 degrees. More than 90% of the patients were satisfied. None received revision surgery. There was only one person with an uncosmetic scar.

Conclusions: Percutaneous screws as treatment of idiopathic genua valga in children seem to be as safe and reliable as stapling but are a less invasive and a more cosmetic treatment.

Level of evidence: Our study is a level 3 study in which we compared, in a retrospective way, our results of percutaneous screws with stapling, both performed at our department.

© 2008 Lippincott Williams & Wilkins, Inc.

The Pediatric Orthopaedic Society of North America (POSNA)
is a group of healthcare professionals, primarily pediatric orthopaedic surgeons, dedicated to advancing musculoskeletal care of children and adolescents. JPO is our official member journal. 
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