What is brachymetatarsia? Causes, symptoms, and treatment

Brachymetatarsia is a very rare congenital foot deformity. This condition stunts the growth of one of the metatarsals. In most cases, the first and fourth metatarsals are affected. In this article, "What is brachymetatarsia?", we'll delve deeper into the topic.

This causes the finger to shorten , appearing noticeably shorter than the adjacent fingers. Even if its dimensions are generally normal, the anatomical deviation is not only an aesthetic problem, as it also causes various emotional and psychological distress.

What causes brachymetatarsia?

The exact causes of brachymetatarsia are not yet fully understood. However, several orthopedic medicine experts suspect that this condition may be inherited in an autosomal dominant manner.

In some cases, it is associated with other syndromes, such as generalized skeletal dysplasia , Albright syndrome, Turner syndrome , and basal cell nevus syndrome. Early diagnosis is essential to treat it properly. This is because, in certain conditions, such as Albright osteodystrophy, brachymetatarsia is the first sign of endocrine problems such as pseudohypoparathyroidism.

Clinical symptoms and signs

What are the symptoms of this condition? They vary depending on the severity of the metatarsal shortening. It often affects the fourth or first metatarsal , with the fourth toe or big toe appearing visibly shorter. The imbalance disrupts the normal rolling of the foot, causing increased stress on the adjacent toes.

This causes pain in the forefoot. Precisely because the aesthetic aspect and emotional pain are often significant, many patients try to hide their foot condition from others, such as at the pool or the beach.

Diagnosis and complications

Diagnosing brachymetatarsia is easy, given the obvious nature of the deformity. However, many people living with this condition refuse to consult a doctor for fear of finding effective solutions. They are often mistakenly advised to see a psychologist, overlooking the potentially promising surgical option.

Surgical treatment of brachymetatarsia

The most effective treatment for brachymetatarsia is surgery. This is especially useful when the shortening affects foot function or presents a significant psychological burden. One of the most proven procedures is lengthening the metatarsal bone through bone grafting. This technique can use either the patient's own bone or a synthetic material.

Callus distraction stretching

An excellent alternative is callus distraction . An internal or external fixator is used to gradually lengthen the metatarsal. This procedure, which can last several months, allows for more controlled correction of bone shortening. The fixator is removed only when sufficient bone stability has been achieved.

Complications and Outlook

Although there is no prevention for brachymetatarsia , treatment can effectively resolve both aesthetic and functional problems. However, surgery should only be performed after complete bone growth, usually after age 16. In less severe cases, corrective osteotomy may be considered , where the metatarsal is sectioned and stabilized through osteosynthesis.

Each treatment carries minimal risks of post-operative complications , such as possible posture or gait defects: these, however, are resolved with orthopedic footwear or further minor interventions.

Psychological and social impacts

As mentioned previously, brachymetatarsia causes psychological as well as physical distress. A short toe lowers the patient's self-esteem . This can lead to severe depression or sexual problems. This is why a parallel psychological evaluation is recommended, especially for adolescents, who may experience significant distress during puberty.

Although brachymetatarsia is a rare condition, its diagnosis and treatment are crucial to improving patients' quality of life. Surgery, if properly planned, can restore the psychological peace they need to live peacefully and without shame.