Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.
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Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
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What Is Brachymetatarsia?
Brachymetatarsia is a condition in which one or more of the metatarsal bones is abnormally short compared to the adjacent metatarsals, resulting in a characteristic “floating toe” appearance where the affected toe does not reach the ground and appears visibly elevated above its neighbors.
The fourth metatarsal is affected in approximately 75–80% of cases, though any metatarsal can be involved. The condition is bilateral (both feet) in 25–40% of patients. Brachymetatarsia is approximately 25 times more common in females than males.
Causes
The most common cause is premature closure of the metatarsal growth plate (physis) during childhood, which prevents normal longitudinal growth of that metatarsal. This can occur as an isolated finding or in association with:
- Turner syndrome (a chromosomal condition more common in girls)
- Pseudohypoparathyroidism and pseudopseudohypoparathyroidism
- Down syndrome
- Trauma to the physis during childhood
- Radiation therapy to the foot during childhood
- Idiopathic (no identifiable cause) — the most common form
Symptoms and Functional Impact
The elevated toe that characterizes brachymetatarsia is primarily a cosmetic concern for many patients. However, functional problems can develop:
- Metatarsalgia: The adjacent metatarsals bear increased load because the short metatarsal’s head is elevated off the ground, concentrating pressure beneath the second and third metatarsal heads
- Shoe-fitting difficulty: The elevated toe is prone to dorsal shoe pressure, corn formation, and difficulty fitting standard footwear
- Toe contracture: Over time, the floating toe may develop fixed flexion or hyperextension contracture
- Psychological impact: Many patients, particularly adolescents, are significantly self-conscious about the appearance and avoid open-toed footwear
Conservative Management
Conservative management focuses on symptom relief rather than deformity correction. Custom orthoses with metatarsal pads reduce plantar pressure redistribution. Wider toe-box shoes with adequate dorsal depth accommodate the elevated toe without pressure. For flexible toe contracture, toe sleeves and padding may reduce discomfort from shoe contact.
Surgical Correction
Surgery is considered when conservative measures fail to adequately control symptoms or when the cosmetic deformity causes significant psychological distress. Two surgical approaches exist:
Acute Lengthening with Bone Graft
The metatarsal is cut (osteotomy) and a tricortical bone graft (typically from the iliac crest or allograft) is inserted to bridge the gap. This achieves correction in one procedure but is limited to lengthening of approximately 10–15mm before neurovascular stretch becomes a risk. Fixation with a plate and screws maintains the correction during healing.
Gradual Distraction Osteogenesis (Callotasis)
An external fixator is placed after an osteotomy, and the gap is gradually distracted (lengthened) at approximately 1mm per day. The body forms new bone (callus) in the lengthening gap. This method allows greater lengthening — 20–30mm or more — without nerve/vessel stretch risk, but requires 6–12 weeks of external fixator wear and meticulous pin care.
Both methods achieve good outcomes in appropriate patients, with satisfaction rates of 85–95% for combined functional and cosmetic improvement. Gradual lengthening is generally preferred for cases requiring more than 10–15mm of correction.
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Clinical References
- Thomas MJ, et al. “The population prevalence of foot and ankle pain.” Pain. 2011;152(12):2870-2880.
- Hill CL, et al. “Prevalence and correlates of foot pain.” J Foot Ankle Res. 2008;1(1):2.
- Riskowski JL, et al. “Measures of foot function, foot health, and foot pain.” Arthritis Care Res. 2011;63(S11):S229-S236.
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Howell, MI 48843
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When to See a Podiatrist
If foot or ankle pain has been bothering you for more than a few weeks, home care alone may not be enough. Balance Foot & Ankle offers same-week appointments at our Howell and Bloomfield Hills clinics — no referral needed in most cases. Bring your current shoes and a short list of symptoms and we’ll build you a treatment plan in one visit.
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Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.
Frequently Asked Questions
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- Plantar Fasciitis: Diagnosis and Conservative Management (PubMed)
- Plantar Fasciitis (APMA)
- Diagnosis and Treatment of Plantar Fasciitis (PubMed / AAFP)
- Heel Pain (APMA)
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