In the management of a hypervascular nonunion, which treatment option is commonly considered?

• A. Observation and casting
• B. External fixation
• C. ORIF
• D. Bone stim

Answer: (D)

In a hypervascular (hypertrophic) nonunion, the biology is active—the bone shows good blood supply and callus formation—so the limiting factor is usually mechanical stability rather than a lack of osteogenic potential. Because the biology is favorable, stimulating the healing process with a bone growth stimulator can effectively accelerate union without immediate, extensive surgery. These devices can be used as an adjunct to enhance healing while plans for stabilization are considered, or in some cases as a less invasive option when definitive surgical stabilization isn’t immediately pursued.

Observation and casting don’t address the instability, and surgical approaches like external fixation or open reduction and internal fixation are more invasive and aimed at restoring stability directly. Given the available biology, a bone stimulator is a commonly considered option to promote healing in this scenario.