Metatarsalgia
These are conditions affecting the sole of the forefoot. There are several types of metatarsalgia, but the origin is almost always the same: insufficient support from the first metatarsal head during the toe-off phase of walking, leading to overload of the neighboring metatarsal heads (especially the second).
Wearing high-heeled women’s shoes is an aggravating factor and can sometimes even trigger metatarsalgia.
Callus (Plantar Callus)
The most common form of metatarsalgia, this condition results from the thinning of the plantar fat pad and its replacement by an area of hyperkeratosis (thickened skin). These calluses can cause significant discomfort, burning sensations, and pain in the forefoot.
The condition is often worsened by wearing high-heeled shoes. In individuals with high-arched feet (pes cavus), the more vertical alignment of the metatarsals increases pressure beneath the forefoot, further aggravating the problem.
Initially, podiatric treatment can remove the calluses and provide relief. However, this improvement is usually temporary because the thickened skin will continue to reform as long as the excessive pressure remains.
Custom orthotic insoles designed to offload the forefoot can help reduce these high-pressure areas and promote a more even distribution of weight across the entire forefoot.
Because these offloading orthoses are thin and low-profile, they can easily fit into dress shoes, pumps, and other narrow footwear.
Morton's Syndrome (Morton's Neuroma)
Morton’s syndrome is a condition that affects a nerve in the forefoot. The nerve becomes compressed between the bones and ligaments of the foot, causing sharp, intense pain that is often described as a stabbing or burning sensation. Many people also experience tingling, numbness, or the feeling of walking on a small pebble.
The condition most commonly occurs between the second and third toes or between the third and fourth toes. In some cases, swelling around the nerve can cause the toes to spread apart slightly.
Excessive pressure on the forefoot is a common cause of Morton’s syndrome, and foot deformities such as bunions (hallux valgus) can make the problem worse.
Custom orthotic insoles can help by reducing pressure on the forefoot and relieving compression of the nerve. This can significantly decrease pain and help restore normal sensation in the toes.
Second Ray Instability Syndrome
This condition affects the joint capsule of the metatarsophalangeal (MTP) joint, most commonly involving the second toe, but it can also affect the third or fourth toe. It is usually caused by excessive pressure and overloading of the central metatarsal heads in the forefoot.
A hammertoe deformity is often present and may worsen over time. As the condition progresses, the joint capsule becomes tightened on the bottom of the foot and stretched on the top, leading to pain, inflammation, and instability of the toe. In severe cases, the toe may partially or completely dislocate from its normal position.
Custom orthotic insoles can help by reducing excessive pressure on the forefoot and offloading the affected area. This decreases stress on the painful joint, improves comfort, and may help slow the progression of the deformity.
Stress Fracture
As a result of excessive pressure and overloading of the central metatarsal bones, a stress fracture may develop, most commonly affecting the neck of the second metatarsal. Repeated microtrauma to the affected metatarsal gradually leads to the fracture. This condition is frequently seen in young athletic adults and in some patients following an unusual activity involving repetitive stress and overuse of the second metatarsal head, such as dancing in high heels or long-distance hiking.
Custom foot orthoses help by completely offloading the forefoot, allowing the injury to heal properly and relieving pain during weight-bearing activities.