Abstract
The purpose of this study is to evaluate the clinical and radiological outcomes of hemiepiphysiodesis with a single medial staple of the proximal tibia in idiopathic genu valgum angular correction. A retrospective review was performed identifying nine adolescents (18 knees) treated for idiopathic adolescent genu valgum by means of a bilateral hemiepiphysiodesis with a single staple of the proximal tibia. The intermalleolar distance (IMD) and hip-knee-ankle angle were measured at skeletal maturity. The IMD and hip-knee-ankle angle were reduced in all patients at skeletal maturity. Hemiepiphysiodesis with a single medial staple of the proximal tibia seems to be a reliable and safe alternative method to achieve correction of an idiopathic genu valgum.
Highlights
Adolescent idiopathic genu valgum is a common frontal deformity
Surgical angular correction is admitted over a measured intermalleolar distance (IMD) of 8 cm [1] in order to avoid anterior knee pain, abnormal gait patterns or patellofemoral instability
Most surgical techniques are based on a progressive correction with an asymmetrical epiphyseodesis of the medial side of the distal femoral growth plate
Summary
Adolescent idiopathic genu valgum is a common frontal deformity. The idiopathic genu valgum originates in the distal femoral metaphysis [2, 3]. Most surgical techniques are based on a progressive correction with an asymmetrical epiphyseodesis of the medial side of the distal femoral growth plate. Phemister’s technique is considered as obsolete [11]. With these techniques stands the issue of the proper timing for surgery to avoid overcorrection [6]. Techniques of temporary epiphysiodesis are based on bridging the growth plate with staples. Since its description by Blount [12], femoral and tibial stapling has been widely used for the progressive correction of lower limb deformities
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