Mallet toes
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Hammer toes are an acquired or, less frequently, congenital deformity of the toes, most commonly affecting the second, third, or fourth toe, characterized by flexion at the proximal interphalangeal joint. The condition may be accompanied by hyperextension at the metatarsophalangeal joint and malalignment of the distal part of the toe. The disorder results from an imbalance between the muscles, tendons, and ligamentous structures stabilizing the toe. Initially, the deformity may be flexible and manually correctable; however, with the remodeling of joint capsules, tendons, and ligaments, it can become fixed. This leads to forefoot overload, painful corns, difficulties in selecting footwear, and impaired gait mechanics. Treatment is selected according to the underlying cause, the rigidity of the deformity, joint stability, and the severity of symptoms.
Hammertoes - what are they
The proper alignment of the lesser toes depends on the interaction between the intrinsic muscles of the foot, the long toe muscles, the plantar fascia, joint capsules, and the plantar plate. The plantar plate is a fibrocartilaginous structure that stabilizes the metatarsophalangeal joint on the plantar aspect. Disruption of this balance leads to the dominance of specific muscle forces and the gradual flexion of the toe.
A classic hammer toe is characterized by:
- flexion at the proximal interphalangeal joint,
- usually extension or hyperextension at the metatarsophalangeal joint,
- variable alignment of the distal interphalangeal joint,
- the formation of a prominence on the dorsal surface of the toe.
The deformity should be distinguished from:
- claw toe, in which there is hyperextension of the metatarsophalangeal joint and flexion of both interphalangeal joints,
- distal hammer toe, also referred to as mallet toe, where primarily the distal interphalangeal joint undergoes flexion,
- overlapping or cross-over toe, the axis of which also shifts in the transverse plane.
In the clinical picture, deformities are categorized as flexible, partially fixed (semi-rigid), and rigid. This characteristic is of fundamental importance when choosing the treatment. The fixation of the deformity is associated with the shortening of the joint capsule and ligaments, soft tissue fibrosis, and degenerative changes of the articular surfaces.
Hammer toes - causes
The most important mechanism is an imbalance between the flexor and extensor muscles of the toe and the intrinsic muscles of the foot. Under normal conditions, the lumbrical and interosseous muscles stabilize the metatarsophalangeal joint and participate in extending the interphalangeal joints. Weakness in their action promotes hyperextension at the base of the toe and flexion of its distal part.
Factors that increase the likelihood of deformity include:
- footwear with a toe box that is too short, low, or narrow,
- prolonged wearing of high-heeled shoes, which shifts the load onto the forefoot,
- hallux valgus, especially when it displaces the second toe and disrupts the supportive function of the first ray,
- an elongated second toe or unfavorable proportions of the metatarsal bones,
- instability or damage to the plantar plate,
- flatfoot, cavus foot, and limb alignment disorders,
- contracture of the triceps surae muscle and limited dorsiflexion of the foot,
- rheumatoid arthritis and other inflammatory arthropathies,
- neurological diseases, including peripheral neuropathies, stroke sequelae, and Charcot-Marie-Tooth disease,
- diabetes, particularly when accompanied by neuropathy,
- toe injuries, fractures, tendon damage, and postoperative scars,
- age, familial predisposition, and long-term forefoot overload.
Tight footwear usually acts as an exacerbating and perpetuating factor of the deformity. A comprehensive assessment of the causes requires an analysis of the entire foot, as localized toe contracture is often a component of a broader biomechanical disorder.
Hammer toes - symptoms
An early symptom may be a periodic feeling of pressure on the toe in footwear. As the deformity becomes fixed, pain appears on the dorsal surface of the proximal interphalangeal joint, where the skin rubs against the shoe upper. The epidermal response to chronic pressure is hyperkeratosis, or excessive cornification. It can take the form of a painful corn with a central keratin core.
The most common symptoms include:
- visible flexion of the toe and upward protrusion of its joint,
- pain when walking and wearing closed footwear,
- corns on the top of the toe, its tip, or between the toes,
- calluses under the metatarsal heads,
- redness, swelling, and local tenderness,
- a feeling of stiffness and limited mobility,
- overload metatarsal pain,
- instability or gradual elevation of the toe,
- gait disturbances and limited physical activity,
- nail damage resulting from chronic pressure.
Diagnosis is based primarily on the examination of the foot in weight-bearing and non-weight-bearing conditions. The specialist assesses the possibility of manually straightening the toe, joint mobility, skin condition, sensation, blood supply, and the stability of the metatarsophalangeal joint. The joint drawer test helps detect plantar plate damage. Foot X-rays taken in a standing position reveal bone alignment, subluxations, dislocations, and degenerative changes. Ultrasound or magnetic resonance imaging are used when damage to the plantar plate and other soft tissue structures is suspected.
Mallet toes - how to treat
Treatment aims to reduce pain and pressure, protect the skin, improve foot function, and limit the progression of the deformity. A flexible toe alignment provides greater possibilities for conservative management, whereas a rigid contracture with advanced structural changes may require surgical treatment.
Conservative management includes:
- footwear with a wide and adequately high toe box,
- soft shields, separators, pads, and custom silicone orthoses,
- forefoot offloading insoles and metatarsal pads selected after a biomechanical assessment,
- taping to control the alignment of a flexible toe,
- exercises mobilizing joints, stretching calf muscles, and strengthening intrinsic foot muscles,
- physiotherapy targeted at the gait pattern and coexisting motor impairments,
- treatment of the underlying disease, especially diabetes, neuropathy, or inflammatory joint disease.
At Ambasada Urody, podiatric support related to the consequences of hammer toes includes a basic or extended podiatric treatment, during which calluses, hyperkeratosis, and periungual lesions are addressed. In the case of painful pressure lesions, specialized deep corn removal is also performed. For individuals with diabetes, a diabetic pedicure is available, carried out with consideration of neuropathy, circulatory disorders, and an increased risk of skin breakdown. If toe pressure has led to deformity or damage to the nail, the scope of care may include debridement of the diseased nail and, following assessment of indications, nail plate reconstruction. Podiatric procedures alleviate the effects of pressure and protect tissues, while structural correction of the toe axis is performed by an orthopedist.
Surgery is considered in cases of persistent pain, rigid deformity, recurrent skin damage, or significant functional limitation. Techniques used include tendon lengthening or transfer, release of contracted tissues, plantar plate repair, metatarsal osteotomy, resection arthroplasty, or arthrodesis—namely, its controlled fusion. The scope of surgery is chosen individually and takes into account all coexisting forefoot deformities.
Hammer toes - prevention
Prevention focuses on maintaining proper space for the toes, reducing overload, and early detection of changes. Individuals with diabetes, neuropathy, rheumatoid arthritis, hallux valgus, and foot axis deformities require particular observation.
The most important preventive measures are:
- selecting footwear that matches the length and width of the foot,
- maintaining free space in front of the longest toe,
- choosing a wide toe box and a soft upper,
- limiting prolonged walking in high heels,
- regular toe mobility exercises and calf muscle stretching,
- gradually increasing training loads,
- body weight management and treating diseases affecting foot tissues,
- daily observation of the skin, interdigital spaces, and nails,
- professional treatment of recurrent corns and calluses,
- orthopedic or podiatric consultation when toe alignment changes.
Early assessment of a flexible deformity allows for reducing points of excessive pressure and slowing its fixation. Self-cutting of corns and the use of keratolytic preparations require particular caution, especially in cases of diabetes, sensory impairment, and limb ischemia. Increasing pain, a wound, ulceration, discharge, discoloration of the toe, or a sudden deterioration of its blood supply are indications for urgent medical consultation.
