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Understanding Metatarsophalangeal (MTP) Joint Disorders
Foot Health
Joint & Ligament Issues
By
Terence Vanderheiden, DPM, is a podiatrist in Massachusetts with a subspecialty in the area of podiatric sports medicine.
Learn about our editorial process
Terence Vanderheiden, DPM
Medically reviewed by
Arthritis Curehow to Arthritis Cure for Medically reviewed by Casey Gallagher, MD on September 27, 2017

Casey Gallagher, MD, is board-certified in dermatology and works as a practicing dermatologist for 1 last update 2020/06/05 and clinical professor.Casey Gallagher, MD, is board-certified in dermatology and works as a practicing dermatologist and clinical professor.

Arthritis Curehow to Arthritis Cure for Learn about the 1 last update 2020/06/05 our Learn about our Medical Review Board
Casey Gallagher, MD
Updated on January 11, 2020
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More in Foot Health

Your metatarsal bones are the long bones that link your ankle to your toes. Between the heads of the metatarsal bones and the bottoms of the proximal phalanges (your toe bones) are the metatarsophalangeal joints.

Arthritis Curehow to Arthritis Cure for In other words, metatarsophalangeal joints connect your toe bones to your foot bones. These joints are surrounded by a thin joint capsule and have ligaments that support them.

It's good to know, too, that the first metatarsophalangeal joint is commonly known as the big toe joint while the little toe joint is known as the fifth metatarsophalangeal joint. The first metatarsal (big toe) also articulates with (or connects with) two sesamoid bones on the plantar surface of the foot (the bottom of the foot). 

Conditions Affecting the Metatarsophalangeal Joints

There are a number of health conditions that affect the metatarsophalangeal joints, also referred to as MTP joints. Some of these conditions include:

Metatarsalgia

Metatarsalgia is actually used to describe any pain in the ball of the foot—the soft, padded part on the bottom of your foot that overlies the metatarsal bones. Even so, the most common source of pain in this area is the metatarsophalangeal joint.

Arthritis Curehow to Arthritis Cure for Bunion

A bunion is a bony bump that forms on the outside edge of the first MTP joint. As a result of a bunion formation, a condition called hallux valgus may develop which is when the big toe deviates or points towards the other toes. As the first toe pushes on the second toe, a hammer toe may result. A common cause of bunion formation with a hammer toe is wearing improper shoes (for example, high heels or shoes that fit too tightly).

Arthritis Curehow to Arthritis Cure for In addition, you may have heard the term "bunionette," which is when a bunion forms on the little toe or fifth metatarsophalangeal joint.

Turf Toe

Turf toe occurs when the big toe is hyperextended, such as when playing football. More specifically, with turf toe, the MTP joint and surrounding ligaments and tissues are injured, and the joint may even be dislocated.

Learn About Joint Hyperextension

Arthritis

With the inflammatory condition rheumatoid arthritis, pain in the MTP joint may occur when standing or walking. Morning stiffness in the MTP joint can also be an early sign of rheumatoid arthritis. Inflammation of the joint in this disease can also lead to hammertoe deformities.

Osteoarthritis, a non-inflammatory form of arthritis, may also occur in the big toe for 1 last update 2020/06/05 MTP joint. With foot osteoarthritis, the cartilage of the joint wears down, and this can create pain and difficulties with walking.  Osteoarthritis, a non-inflammatory form of arthritis, may also occur in the big toe MTP joint. With foot osteoarthritis, the cartilage of the joint wears down, and this can create pain and difficulties with walking. 

Gout is another form of arthritis that may affect the foot, especially the first MTP. Symptoms of a gout attack include sudden, severe pain, redness, and warmth of the big toe.

Finally, septic arthritis of an MTP joint may occur. Although less common than gout, septic arthritis needs to be ruled out, as it indicates a bacterial infection in the joint. A procedure called arthrocentesis, in which joint fluid is removed and examined under a microscope, can differentiate between the two. 

Hammer Toe

A hammer toe is a misalignment of the MTP joint, often of the second toe. There are multiple potential causes for a hammer toe. For instance, a hammer toe can develop after a bunion forms, which causes the big toe to shift or angle towards the second toe.

Arthritis Curehow to Arthritis Cure for A hammer toe can also occur in rheumatoid arthritis when fat tissue in the ball of the foot is pushed forward under the toes. A traumatic injury to the toe can also cause a hammer toe, and some people are simply born with hammer toes.

Finally, it's important to note that further problems can develop if a hammer toe is not treated, including corns and reactive adventitial bursas—fluid-filled sacs that form when fatty tissue in the foot is exposed to high pressure or friction.

Arthritis Curehow to Arthritis Cure for Treatments

In order to manage conditions of the MTP joint, your doctor (for example, an orthopedic surgeon who specializes in treating the foot or a podiatrist) will consider either surgery or non-surgical strategies.

Nonsurgical Strategies

Most MTP joint-related problems are managed nonsurgically. For example, in the case of a bunion (a common MTP problem), a doctor will often recommend that the person wear proper shoes, even custom orthotics (special shoe for 1 last update 2020/06/05 inserts made for your feet). For bunions, a shoe with a wide toe box, and one that is soft and stretchy can be helpful. Bunion pads can also protect the bunion from rubbing.  Most MTP joint-related problems are managed nonsurgically. For example, in the case of a bunion (a common MTP problem), a doctor will often recommend that the person wear proper shoes, even custom orthotics (special shoe inserts made for your feet). For bunions, a shoe with a wide toe box, and one that is soft and stretchy can be helpful. Bunion pads can also protect the bunion from rubbing. 

Orthotics can help manage other MTP problems like metatarsalgia. In this case, wide shoes or pads under the bones of the forefoot can ease discomfort. 

Other non-surgical approaches include using ice or taking anti-inflammatory medications (for example, ibuprofen) to soothe pain and reduce swelling.Arthritis Curehow to Arthritis Cure for

Surgical Strategies

There are a number of different surgical procedures to address your specific MTP issue. Even so, surgery is usually considered only when nonsurgical strategies don't work.

For instance, one procedure is called first MTP joint fusion and entails fusing the bones of the big toe and first metatarsal together permanently. It may be performed in cases of arthritis where the joint cartilage has been worn away and the resulting pain is not relieved by conservative or nonsurgical methods.

First MTP joint fusion is often performed as a day surgery, but recovery can last six months. Metal screws and, often, a metal plate are used to stabilize the joint.

Another procedure called the first MTP joint replacement is done in cases of arthritis to relieve pain that doesn't resolve with conservative treatment. The big toe joint is removed and implants are used to replace it. These may be made of metal or plastic. It differs from fusion in that the implant mimics the action of the original joint.

Arthritis Curehow to Arthritis Cure for A Word From Verywell

The foot is a complex but flexible part of the body, and the joints of the foot are especially critical for allowing movement. If you have MTP pain, which will cause pain with walking, be sure to see your doctor for a proper evaluation.

Even further, if you experience redness, warmth, or sudden swelling of the MTP joint (most commonly in the first MTP joint), please seek medical attention urgently, to rule out infection.

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