What is the typical management for a depressed tibial plateau fracture when depression is significant or there is instability?

• A. Nonoperative management in all cases.
• B. Surgical fixation with ORIF if depression is significant or there is instability.
• C. External fixation only.
• D. Total knee replacement as first-line.

Answer: (B)

When the tibial plateau fracture has a significantly depressed articular surface or shows instability, the priority is to restore a smooth joint surface and provide stable fixation. Nonoperative approaches can’t reliably elevate the depressed fragments or maintain alignment, which leads to articular incongruity, malalignment, and a high risk of post-traumatic arthritis.

Open reduction and internal fixation allows direct visualization of the fracture, elevation of the depressed articular fragments, and buttress stabilization with plates and screws. If needed, bone grafts or substitutes fill the void created by elevated fragments to support the joint surface. This approach enables early knee motion and better long-term alignment and function.

External fixation is often used as a temporary measure when soft-tissue swelling or injuries preclude immediate definitive fixation, but it is not the definitive treatment for depressed or unstable fractures. Total knee replacement is not typically the first-line option for acute tibial plateau fractures; it’s reserved for specific cases, such as elderly patients with preexisting knee arthritis or when reconstruction of the joint surface is unlikely to be durable.

So, the best-management choice in this scenario is surgical fixation with ORIF to restore the articular surface and achieve stable fixation.