Fifth Metatarsal Osteotomy for Tailor’s Bunion: Distal vs. Shaft Osteotomy Techniques

Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

Why Osteotomy Is Needed for Tailor’s Bunion

A tailor’s bunion (bunionette) produces a painful lateral bony prominence at the fifth metatarsal head from one of three anatomical patterns: an enlarged metatarsal head exostosis, a lateral bow of the metatarsal shaft, or an increased 4-5 intermetatarsal angle. While simple exostectomy (shaving the bump) adequately addresses Type I exostosis deformity, the more common Types II and III require a corrective osteotomy — a controlled surgical fracture through the fifth metatarsal — to shift the metatarsal head medially and correct the underlying deformity rather than simply reducing the prominence without addressing its cause.

Selecting the appropriate osteotomy type depends on the location of the deformity along the metatarsal and the magnitude of angular correction required. Preoperative weight-bearing X-rays — measuring the 4-5 intermetatarsal angle, the fifth metatarsophalangeal joint angle, and identifying the bow location — guide this selection.

Distal Fifth Metatarsal Osteotomy: The Chevron (Austin-type) Technique

Indications

The distal chevron osteotomy is the most commonly performed bunionette correction, best suited for moderate deformity — 4-5 intermetatarsal angles up to 9–10 degrees — without excessive shaft bowing. It provides reliable correction with a straightforward technique and rapid recovery.

Technique

Through a dorsal-lateral incision over the fifth metatarsal head, the lateral capsule is released and the fifth MTP joint is exposed. The fifth metatarsal head exostosis is resected with a sagittal saw to reduce the prominence. A V-shaped (chevron) osteotomy cut is made through the distal metatarsal neck — the apex pointing distally — using an oscillating saw. The capital fragment (containing the metatarsal head and articular surface) is shifted medially by the desired correction amount — typically 3–5mm — and impacted into the proximal metatarsal fragment. Fixation with a single 2.7mm or 3.5mm cortical screw across the osteotomy site secures the corrected position. The lateral prominence that remains from the displaced proximal cortex is resected flush with the new metatarsal contour.

Recovery

Immediate weight-bearing in a surgical shoe is permitted after distal chevron osteotomy. Transition to regular footwear typically occurs at 4–6 weeks, with radiographic evidence of osteotomy healing guiding progression. Return to athletic activity occurs at 8–10 weeks. The surgical scar fades over 6–12 months.

Oblique Diaphyseal (Shaft) Osteotomy

Indications

The oblique diaphyseal osteotomy is preferred for Type II deformity — the lateral bow of the metatarsal shaft — and for more significant Type III deformity with elevated 4-5 intermetatarsal angles exceeding 9–10 degrees, where the distal chevron cannot achieve adequate correction without risk of avascular necrosis of the metatarsal head from disrupting the dorsal blood supply.

Technique

Through a dorsal-lateral incision centered over the mid-fifth metatarsal shaft, a long oblique osteotomy cut is made from dorsal-distal to plantar-proximal, dividing the metatarsal at the zone of the deformity. The distal fragment — containing the metatarsal head — is shifted medially to close the 4-5 intermetatarsal angle. The long oblique osteotomy surface provides a large area of bone contact that heals reliably and allows rotational adjustment of the fragment to optimize metatarsal head position. Fixation with one or two small-fragment cortical screws maintains the corrected alignment during healing. The lateral cortical prominence at the osteotomy site is resected.

Recovery

The oblique diaphyseal osteotomy typically requires 6 weeks in a surgical shoe before transitioning to regular footwear, as the longer osteotomy takes longer to heal radiographically. Return to athletic activity at 10–12 weeks.

Proximal Fifth Metatarsal Osteotomy

Indications

Severe Type III deformity with 4-5 intermetatarsal angles exceeding 11–12 degrees may require a proximal osteotomy — analogous to the Ludloff or Scarf osteotomy used for severe hallux valgus correction. The proximal osteotomy location provides maximum angular correction potential by virtue of the longer lever arm. However, it carries higher risk of delayed union than distal and diaphyseal osteotomies because of the relatively poor blood supply to the fifth metatarsal proximal diaphysis — the same zone that makes Jones fractures (proximal fifth metatarsal stress fractures) notorious for delayed union and non-union.

Concurrent Procedures

Fifth metatarsal osteotomy for bunionette correction may be combined with: little toe realignment procedures (releasing the lateral soft tissue envelope and rebalancing the extensor and flexor tendons to prevent recurrence); hardware removal under local anesthesia at 3–4 months for patients who develop screw-related irritation; and — when bilateral bunionettes require simultaneous correction — staged bilateral procedures to allow safe rehabilitation of one foot before operating on the other.

Outcomes and Patient Selection

Fifth metatarsal osteotomy for bunionette correction produces good to excellent results in 85–90% of appropriately selected patients. Patient-reported outcomes show significant reduction in lateral forefoot pain, improved footwear tolerance, and high satisfaction rates. Complications — including delayed union, transfer metatarsalgia (development of pain under adjacent metatarsal heads from altered load distribution), and hypertrophic scarring at the surgical site — occur in a minority. Patients considering this procedure should undergo thorough preoperative evaluation including weight-bearing radiographs and assessment of fifth metatarsal blood supply to ensure appropriate osteotomy selection and minimize complications.

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Tailor’s Bunion Surgery in Michigan

A tailor’s bunion (bunionette) causes a painful bump on the outside of the fifth toe. Dr. Tom Biernacki performs minimally invasive fifth metatarsal osteotomy to correct the deformity and eliminate shoe pressure pain at Balance Foot & Ankle.

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Clinical References

1. Coughlin MJ. “Treatment of bunionette deformity with longitudinal diaphyseal osteotomy with distal soft tissue repair.” Foot Ankle. 1991;11(6):388-393.
2. Kitaoka HB, Holiday AD. “Lateral condylar resection for bunionette.” Clin Orthop Relat Res. 1992;(278):183-189.
3. Leach RE, Igou R. “Metatarsal osteotomy for bunionette deformity.” Clin Orthop Relat Res. 1974;(100):171-176.