A keller procedure is used to correct which condition?

The Keller procedure is specifically designed to address hallux valgus, commonly referred to as a bunion. This surgical intervention involves removing a portion of the proximal phalanx of the big toe and realigning the toe to alleviate the deformity and relieve pain associated with the bunion.

In this procedure, the aim is to correct the misalignment of the big toe, allowing for improved function and a decrease in discomfort during movement. Understanding the anatomy involved and the goals of the Keller procedure is crucial for recognizing its particular application in treating hallux valgus, making it the correct answer in this context.

Other conditions listed would require different surgical approaches. Hammer toes involve deformities of the lesser toes and would not necessarily be treated with the Keller procedure. Baker's cyst is related to fluid accumulation in the knee joint and is not addressed through this surgical method. A Colles fracture refers to a specific type of wrist fracture, typically managed with immobilization or sometimes surgical intervention, but this is unrelated to the Keller procedure. Thus, the Keller procedure is exclusively applicable to the correction of hallux valgus.