What is the minimum degree of malunion to warrant surgical revision of a bunionectomy?

What is the minimum degree of malunion to warrant surgical revision of a bunionectomy?

• A. 5 degrees
• B. 15 degrees
• C. 10 degrees
• D. 25 degrees

Answer: (B)

The main idea is that a residual deformity after bunion correction becomes clinically significant enough to consider revision once it reaches about 15 degrees. After bunionectomy, proper realignment of the first metatarsal and hallux is essential for normal load distribution across the first ray. If the hallux valgus angle (and related alignment) remains around 15 degrees or more, the abnormal pressures persist, which can cause continued pain, metatarsalgia, cosmetic concerns, and a higher risk of recurrence. Therefore, 15 degrees is the commonly used threshold at which surgeons begin to seriously consider surgical revision to restore alignment and improve function. Smaller residual angles, such as 5 or 10 degrees, may be tolerated or managed nonoperatively if symptoms are mild, while a markedly larger malalignment (like 25 degrees) would also prompt revision, but the standard minimum level cited is 15 degrees.

The main idea is that a residual deformity after bunion correction becomes clinically significant enough to consider revision once it reaches about 15 degrees. After bunionectomy, proper realignment of the first metatarsal and hallux is essential for normal load distribution across the first ray. If the hallux valgus angle (and related alignment) remains around 15 degrees or more, the abnormal pressures persist, which can cause continued pain, metatarsalgia, cosmetic concerns, and a higher risk of recurrence. Therefore, 15 degrees is the commonly used threshold at which surgeons begin to seriously consider surgical revision to restore alignment and improve function. Smaller residual angles, such as 5 or 10 degrees, may be tolerated or managed nonoperatively if symptoms are mild, while a markedly larger malalignment (like 25 degrees) would also prompt revision, but the standard minimum level cited is 15 degrees.