Purpose: Knee valgus in children is a common deformity of the lower extremity. It affects the gait and walking of children. The purpose of this paper is to exploit the epiphyseal growth potential of children and to explore a minimally invasive alternative to osteotomy for corrective surgery.
Methods: There were 8 cases, aged 4-12 years, 56 males and 2 females. 5 cases had idiopathic bilateral lower extremity knee valgus, 1 case had multiple osteochondroma causing knee valgus, and 2 cases had knee valgus after proximal tibial fracture. All 8 cases were treated with a medial epiphyseal growth block of the lower femur with a figure-of-8 plate.
RESULTS: In 3 cases with 1 year follow-up, the 8-plate was removed and the knee valgus was completely corrected; the remaining 5 cases are under observation.
CONCLUSION: Using temporary epiphyseal block to correct angular deformity of the lower extremity is an idealized treatment method. 8-plate is minimally invasive, simple, safe, and does not require external fixation compared with osteotomy, and can be walked on the ground in the near future after surgery.