Chevron Osteotomy

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The Chevron osteotomy, also known as an Austin osteotomy, is a surgical procedure commonly performed to correct mild to moderate hallux valgus deformity, more widely known as a bunion. A bunion occurs when the big toe deviates toward the smaller toes, creating a prominent bump on the side of the foot. The Chevron osteotomy specifically targets this problem by cutting and realigning the first metatarsal bone to restore normal alignment of the big toe joint. The term “Chevron” comes from the V-shaped cut made at the head of the first metatarsal, which allows controlled shifting of the bone to correct the deformity.

During the procedure, the surgeon makes a small incision over the first metatarsophalangeal (MTP) joint. A V-shaped (Chevron) cut is made through the metatarsal head, typically at an angle of about 60 degrees. The distal fragment (the part closer to the toe) is then shifted laterally—toward the outside of the foot—to realign the joint and reduce the bunion prominence. Once the correct position is achieved, the bone is fixed in place using screws, pins, or other fixation devices to ensure stability during healing. The incision is then closed, and the foot is bandaged to maintain alignment while the bone heals.

The recovery process following a Chevron osteotomy usually takes several weeks to months, depending on the patient’s age, bone health, and adherence to post-operative care instructions. Most patients are able to bear partial weight on the operated foot within a few days or weeks using a special surgical shoe. Stitches are typically removed after two weeks, and gentle range-of-motion exercises may be introduced soon after to prevent stiffness. Full recovery—including return to normal footwear and physical activity—can take around 8 to 12 weeks. Swelling may persist for several months, and patients are advised to avoid high heels or narrow shoes during the healing phase to prevent recurrence.

The advantages of a Chevron osteotomy include its precision, minimal invasiveness compared to other bunion surgeries, and generally good cosmetic and functional outcomes. It offers reliable correction for mild to moderate deformities with a low risk of complications when performed properly. However, it may not be suitable for severe bunions, where more extensive procedures like a Scarf or Lapidus osteotomy are required. Potential complications include stiffness, recurrence of deformity, or, rarely, improper bone healing. Overall, the Chevron osteotomy remains a widely used and effective surgical technique for restoring proper alignment, relieving pain, and improving both the appearance and function of the big toe joint..

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Chevron Osteotomy

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