What Is a Bunionette and How Is It Treated?

A bunionette, commonly known as a tailor’s bunion, is a deformity affecting the small toe joint. This bony prominence develops on the outside edge of the foot at the little toe, creating discomfort and pain. Understanding the nature of this foot problem and the available options for management is important. This article explores the anatomical details of a bunionette, discusses the factors that lead to its development, and details the progression of care from conservative methods to surgical solutions.

Defining the Bunionette

A bunionette is a bony lump that forms at the base of the little toe where it connects to the foot. This deformity occurs at the fifth metatarsophalangeal (MTP) joint, where the fifth metatarsal bone meets the pinkie toe. The condition is characterized by an enlargement or lateral deviation of the fifth metatarsal bone head. This misalignment causes the bone to project outward, creating a noticeable bump on the side of the foot.

The presence of a bunionette can cause a variety of symptoms, ranging from mild irritation to pain. The most obvious symptom is the visible bony protrusion, which can become red and swollen due to friction from footwear. Pain or pressure is commonly experienced, especially when wearing tight or narrow shoes. Constant rubbing can also lead to the formation of corns or calluses on the outside of the little toe. A healthcare provider can typically diagnose the condition through a physical examination, but an X-ray may be used to determine the severity and structure of the bone deformity.

Underlying Causes and Risk Factors

The development of a bunionette often stems from a combination of inherited foot structure and external mechanical factors. Certain foot types, such as those with a wide forefoot, can make a person more susceptible to this condition. Genetic factors may include a structural problem where the fifth metatarsal bone is naturally bowed or its head is enlarged. These intrinsic issues can cause the joint to be unstable or place excessive load on the outer edge of the foot.

External factors, particularly ill-fitting footwear, play a large part in aggravating or causing bunionettes. Shoes that are narrow or pointed, along with high heels, compress the forefoot and push the little toe inward toward the fourth toe. This constant pressure on the fifth MTP joint causes the bone to shift out of alignment over time. Abnormal foot mechanics, such as overpronation or hypermobility in the foot, can also contribute to the deformity by altering weight distribution.

Non-Surgical Relief Strategies

For most individuals, managing symptoms and preventing progression relies on conservative strategies. The initial and often most effective step involves changing footwear to styles that have a wide and deep toe box. Avoiding high heels and shoes with narrow, pointed tips minimizes the external pressure that aggravates the bony prominence. Shoes made of softer materials conform better around the deformity than rigid leather, reducing friction and irritation.

Cushioning the area with pads is a simple way to reduce rubbing and discomfort inside shoes. Over-the-counter gel pads or moleskin pads can be applied directly to the bunionette to protect it from friction. Orthotic devices, either custom-made or over-the-counter inserts, may be recommended to support the foot’s arches and improve biomechanical alignment. This helps redistribute pressure away from the affected joint.

Pain and inflammation can be managed with nonsteroidal anti-inflammatory drugs (NSAIDs), which are available over the counter. Applying ice packs to the area can also help reduce swelling and provide temporary pain relief. In some cases, a healthcare provider might suggest prescription corticosteroid injections to decrease inflammation around the joint. These non-surgical approaches focus on managing pain and discomfort because they cannot reverse the underlying bony change.

When Surgery is Necessary

Surgical intervention for a bunionette is typically reserved for cases where severe pain persists despite conservative treatments. If the deformity limits mobility or makes wearing comfortable shoes difficult, surgery may be considered to restore function. The primary goal of any operation is to realign the fifth metatarsal bone and remove the painful bony prominence.

The most common procedure used to correct a bunionette is an osteotomy, which involves making small cuts in the metatarsal bone to reposition it. The surgeon then stabilizes the realigned bone using screws, pins, or plates. For milder deformities, a simpler procedure called an exostectomy may be performed to shave off the bony growth. However, an exostectomy is often combined with an osteotomy to ensure the underlying joint alignment is corrected and to help prevent recurrence.