Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.
Medically Reviewed by Dr. Jeffery Agnoli, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
What Is Hallux Varus?
Hallux varus is the opposite of a bunion — rather than the big toe angling toward the smaller toes (hallux valgus), hallux varus involves the big toe angling away from the other toes, toward the midline of the body. The toe points medially (inward), sometimes dramatically so, creating cosmetic deformity, difficulty with footwear, and functional impairment.
While congenital hallux varus and rheumatoid arthritis can cause this deformity, the most common cause in adults is iatrogenic — meaning it results from previous bunion surgery. Over-correction of a bunion, excessive medial soft tissue release or tightening, or improper bone cut orientation can all produce hallux varus as a surgical complication.
How Bunion Surgery Causes Hallux Varus
Several specific surgical errors or anatomic circumstances lead to post-bunion hallux varus. Excessive release of the lateral (outer) structures of the first MTP joint during bunion surgery — particularly the fibular sesamoid excision — removes lateral supporting structures that normally maintain toe alignment. Over-correction of the first metatarsal osteotomy (bone cut) shifts the metatarsal head too far laterally, pulling the toe with it. Excessive medial capsular plication (tightening) pulls the toe inward. The deformity may develop slowly over months to years after an initially satisfactory bunion correction, becoming apparent as the soft tissue tightens progressively.
Symptoms and Impact
Mild hallux varus may cause only minor cosmetic concerns and shoe fitting difficulty. Moderate to severe hallux varus creates significant problems: the toe rubs against the inner edge of shoes, develops pressure wounds on the medial border of the toe, and interferes with normal push-off mechanics. The deviated toe creates a “gap” in the forefoot that alters weight distribution. The first MTP joint may develop stiffness, pain, and eventually arthritis from the abnormal mechanics. Patients often cannot wear closed-toe shoes comfortably.
Non-Surgical Treatment
Mild, flexible hallux varus (the toe can be passively corrected to neutral) may be managed with toe spacers placed on the medial side of the great toe to push it back toward neutral, buddy-taping to the second toe, and wide-toe-box footwear. Dynamic splinting during rest periods may provide gentle correction. These measures are pallative rather than corrective — they manage symptoms without addressing the underlying imbalance.
Surgical Correction of Hallux Varus
Flexible hallux varus is best treated with soft tissue balancing procedures — releasing the contracted medial capsule and reconstructing lateral stabilizing structures using tendon transfers. The extensor hallucis brevis tendon transfer is the most commonly used procedure for flexible post-bunion hallux varus. For rigid hallux varus with established joint stiffness or arthritis, first MTP arthrodesis (fusion) provides definitive correction of both the deformity and the arthritis simultaneously. Revision surgery for post-bunionectomy hallux varus requires careful preoperative planning by a surgeon experienced in revision forefoot surgery. Contact Balance Foot & Ankle at (810) 206-1402 if you have developed hallux varus after previous bunion surgery.
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Big Toe Pointing Inward After Bunion Surgery?
Hallux varus is a condition where the big toe deviates inward, often as a complication of overcorrected bunion surgery. It causes difficulty with shoe fit, pushing off during walking, and cosmetic concerns. Revision surgery can restore normal alignment and function.
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Clinical References
- Trnka HJ, et al. Six first metatarsal shaft osteotomies: mechanical and immobilization comparisons. Clinical Orthopaedics and Related Research. 2000;381:256-265.
- Skalley TC, Myerson MS. The operative treatment of acquired hallux varus. Clinical Orthopaedics and Related Research. 1994;306:183-191.
- Edelman RD. Iatrogenically induced hallux varus. Clinics in Podiatric Medicine and Surgery. 1991;8(2):367-382.
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.
- Diagnosis and Treatment of Plantar Fasciitis (PubMed / AAFP)
- Heel Pain (APMA)
- Hallux Valgus (Bunions): Evaluation and Management (PubMed)
- Bunions (Mayo Clinic)
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