Result of Spanning Bridge Plate Fixation for Comminuted Intra Articular Distal Radial Fractures.

Distal radius fractures are the most common long bone fracture and the incidence appears to be increasing worldwide. They have been found to account for approximately 17% of all fracture-related emergency department visits. These types of injuries have a bimodal age distribution. The first peak represents young patients involved in high energy traumas, and the second peak represents elderly patients with lower to moderate energy injuries secondary to osteoporosis.Surgical treatment for distal radius fractures varies, as there are numerous techniques for fixation. The goals of fixation are anatomic reduction and stability, as this has been shown to result in improved chances for functional recovery . The use of volar locking plateshas become the standard for treatment of the majority of distal radius fractures requiring surgery . However, adequate fixation for high energy comminuted fractures with or without metadia-physeal extension remains a major treatment challenge. Severely comminuted articular fractures are technically challenging in terms of obtaining an adequate reduction and achieving stabilization with a standard periarticular volar plating technique. The small fracture fragments are often not able to be stabilized with the screws from the volar plate, and the proximally-oriented tension from the forearm musculature acts to pull on the carpus causing further collapse of the articular surface. As an alternate to the volar plate, these types of injuries have been historically treated with an external fixator with or without Kirschner wires. However, it has been reported that highly comminuted distal radius fractures are associated with a 52%-63% complication rate when treated with external fixation . Therefore, despite poor fixation capabilities withthese fracturetypes,thevolarplate remainsthego-to devicefor most surgeons when faced with comminuted articular distal radial fractures. In these circumstances, the dorsal distraction plate (also called dorsal "bridge" plating technique) can serve as an improved fixation technique by allowing comminuted articular fragments to reduce under ligamentotaxis and provide a buttress for the dorsal cortex of the distal radius. In addition, a long dorsal plate can bridge past metaphyseal comminution, which cannot be so easily addressed with standard volar plating . The bridge plate can also be left in place for an extended period of time without the risk of the aforementioned complications of prolonged external fixation use . Finally, the dorsal distraction plate is technically a much easier operation to perform than volar plating for complex articular fractures. Recently, there has been increased use of dorsal distraction plating for these types of injuries .