Arthroscopic-assisted reduction and percutaneous external fixation of lateral condyle fractures of the humerus.

Lateral condyle fractures in children are the second most common fracture about the elbow. Anatomic reduction of intra-articular displacement is considered a priority. Most experts agree that the treatment of choice of mildly displaced (>2 mm) lateral condyle fractures is open reduction-internal fixation or intraoperative arthrography followed by closed reduction and percutaneous pinning. In this report we described an alternative approach using closed arthroscopic-assisted reduction. Arthroscopy was performed by use of a 30 degree, 4.5-mm arthroscope through a proximal anteromedial portal with no pump, and a proximal anterolateral portal was created for instrumentation. The fracture line was easily visualized after blood, fibrin, and loose articular debris were irrigated from the joint. The fracture was manually manipulated and reduced by use of a periosteal elevator placed through the proximal anterolateral portal into the fracture and via rotation until there was no step in the articular cartilage. Two lateral Kirschner wires were placed percutaneously, which result in firm fixation of the fracture. We think that the advantages of arthroscopy are further superior to intraoperative arthrography because arthroscopy not only allows for better anatomic reduction and visualization with minimal surgical trauma and less radiation time but also provides a valid diagnostic and treatment alternative for associated injuries.