ỨNG DỤNG TRỢ CỤ DẪN ĐƯỜNG 3D ĐIỀU TRỊ PHẪU THUẬT TRẬT ĐÀI QUAY BẨM SINH: NHÂN MỘT TRƯỜNG HỢP

Abstract

Introduction: Congenital radial head dislocation is a rare condition, although it is the most common congenital malformation affecting the elbow region. Surgical intervention is considered in symptomatic cases presenting with pain and limited elbow motion. Although various surgical techniques have been proposed, achieving preservation of the radial head and realignment of the deformed bone axes remains challenging. Advances in 3D printing technology enable surgeons to plan precise osteotomies and corrections using navigation aids based on patient specific instrumentation. Case Presentation: A 5-year-old girl was brought by her parents due to inward deviation (“curling in”) of her left arm first noted at age 4, with more pronounced progression by age 5. Pronated and supinated range of motion was mildly restricted; the patient experienced pain during flexion and extension of the elbow. A 3D-reconstructed CT scan clearly demonstrated posterior dislocation of the radial head and multi-axial deformity of the ulna. Surgical correction was indicated to improve cosmetic appearance, relieve pain, and prevent further deformity progression. At 6 months postoperatively, the patient reported satisfaction functionally and esthetically, with no residual pain. Discussion: Conventional surgical techniques for the treatment of congenital radial head dislocation especially in multi-directional bone deformities which are difficulties in accurately realigning the bony axis and determining the exact amount of ulnar lengthening needed. These challenges can adversely affect both function and appearance of the upper limb. Conclusion: With the advent of 3D printing technology, complex problems in congenital bone axis correction are gradually being simplified. Surgical planning has become clearer, allowing surgeons to approach and perform interventions more precisely, ultimately achieving the best possible patient outcomes.