Understanding Hallux Valgus (Bunions)

What is Hallux Valgus?

Hallux valgus, commonly known as bunions, arises when the big toe angles toward the second toe, leading to inflammation and pain. This condition develops gradually and may not always present painful symptoms. In severe cases, the big toe can overlap the second toe, causing the nail of the big toe to face the adjacent toe. The metatarsal bones, which support the toe, are located beneath the bursae or skin. Bunions are more prevalent in women but can also affect children. Older women with bunions often face challenges wearing shoes, increasing their risk of falls compared to healthier elderly women.

Causes of Hallux Valgus

Several factors contribute to the development of hallux valgus. Improper footwear and excessive joint use may play a significant role. Some individuals report a family history of bunions, suggesting a hereditary component to the condition. There is limited evidence indicating that women’s footwear leads to a higher incidence of bunions compared to men. While narrow toe boxes in shoes may elevate the risk, high heels do not appear to contribute to bunion formation.

Symptoms of Bunions

Individuals with bunions often experience pain while walking and wearing regular shoes. Some may remain asymptomatic despite the progression of bunion formation. Pain and swelling near the big toe result from accumulated pressure and friction on the skin, disrupting the foot’s biomechanics and leading to increased pressure on the toes.

Diagnosis of Bunions

Medical professionals utilize radiological tests to diagnose bunions, which involve imaging and measuring the feet. These tests assess the angle between the metatarsal bone and the abducted big toe. An angle exceeding 14.5 degrees typically indicates bunion formation.

Treatment Options for Bunions

Treatment for bunions can be tailored to the patient’s needs, whether for cosmetic reasons, pain relief, or difficulty with footwear. Non-surgical options are often available, focusing on providing support for the toes. Effective management includes wearing supportive footwear, splints, orthotics, and toe spacers. Ideal footwear features a wide and deep toe box with a low heel. While many patients prefer their existing shoes, they may exacerbate their condition unless properly stretched by a podiatrist. Over-the-counter bunion pads can alleviate symptoms, and orthotic devices may offer temporary relief, though their effectiveness in long-term treatment remains uncertain.

If conservative treatments fail to provide long-lasting relief, a referral to an orthopedic surgeon may be necessary to discuss surgical options. Surgeons typically advise younger patients to postpone surgery until their skeletal growth has stabilized, which protects growth plates and reduces the likelihood of recurring bunions. The type of surgery performed will depend on the severity of the deformity and the recurrence rate of the condition.

Conclusion

Bunions require appropriate care, as they will not heal independently and can worsen over time, leading to increased pain and discomfort. For those experiencing symptoms, it is advisable to consult a healthcare professional for personalized guidance.

References

1. Ferrari J. Bunions. BMJ clinical evidence. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2907787/. Published March 11, 2009. Accessed October 10, 2021.
2. Ferrari J. Hallux Valgus (bunions). BMJ Clinical Evidence. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4004226/. Published April 29, 2014. Accessed October 10, 2021.
3. Aebischer AS, Duff S. Bunions. Australian Journal of General Practice. https://www1.racgp.org.au/ajgp/2020/november/bunions. Published November 2020. Accessed October 10, 2021.
4. Richie D, FAAPSM DPMFACFAS. What Causes Bunions? Hmpgloballearningnetwork.com. https://www.hmpgloballearningnetwork.com/site/podiatry/blogged/what-causes-bunions. Published August 23, 2019. Accessed October 10, 2021.
5. Ayub A, Yale SH, Bibbo C. Common foot disorders. Clinical Medicine & Research. 2005;3(2):116-119. doi:10.3121/cmr.3.2.116