Lower Extremity Deformities, Congenital

The goal of this clinical trial is to compare two surgical techniques, Tension Band Plate (TBP) and Percutaneous Epiphysiodesis by Transphyseal Screw (PETS), in children with coronal angular knee deformities. The main questions it aims to answer are: * Which technique provides better correction of coronal knee deformities? * Are there differences in complication rates or recovery times between TBP and PETS? Participants will: * Undergo either TBP or PETS surgery for knee deformity correction. * Attend follow-up visits for radiographic and clinical evaluations. Researchers will compare TBP and PETS groups to see if one method leads to better deformity correction and fewer complications.