OverviewUneven muscle tension results in the distortion of one or several of the small toes. (Hammertoe) Pressure points develop at the raised middle joint as well as at the tip of the toe and underneath the metatarsal head. In the beginning, when the misalignment can still be corrected, it often suffices to lengthen the tendon and to cut a notch into the capsule. In a contracted misalignment, part of the middle joint is removed to form a replacement joint. Modern surgical techniques preserve the metatarsophalangeal joint (Weil or Helal osteotomies).
Causes
Most hammertoes are caused by wearing ill-fitting, tight or high-heeled shoes over a long period of time. Shoes that don?t fit well can crowd the toes, putting pressure on the middle toes and causing them to curl downward. Other causes include genes. Some people are born with hammertoe, bunions. These knobby bumps sometimes develop at the side of the big toe. This can make the big toe bend toward the other toes. The big toe can then overlap and crowd the smaller toes. Arthritis in a toe joint can lead to hammertoe.
Symptoms
Hammer toes can cause problems with walking and lead to other foot problems, such as blisters, calluses, and sores. Pain is caused by constant friction over the top of the toe?s main joint. It may be difficult to fit into some shoe gear due to the extra space required for the deformed toe. In many cases there will be pain on the ball of the foot over the metatarsals along with callus formation. This is due to the toes not functioning properly, failing to properly touch the ground during the gait cycle. The ball of the foot then takes the brunt of the ground forces, which causes chronic pain.
Diagnosis
The exam may reveal a toe in which the near bone of the toe (proximal phalanx) is angled upward and the middle bone of the toe points in the opposite direction (plantar flexed). Toes may appear crooked or rotated. The involved joint may be painful when moved, or stiff. There may be areas of thickened skin (corns or calluses) on top of or between the toes, a callus may also be observed at the tip of the affected toe beneath the toenail. An attempt to passively correct the deformity will help elucidate the best treatment option as the examiner determines whether the toe is still flexible or not. It is advisable to assess palpable pulses, since their presence is associated with a good prognosis for healing after surgery. X-rays will demonstrate the contractures of the involved joints, as well as possible arthritic changes and bone enlargements (exostoses, spurs). X-rays of the involved foot are usually performed in a weight-bearing position.
Non Surgical Treatment
Hammertoes that are not painful (asymptomatic) and still flexible may not require treatment. In mild cases, open-toed, low-heeled, or wider shoes and foam or moleskin pads can provide symptomatic relief by reducing pressure. Taping (strapping) the affected toe can help to reduce deformity and pain. Physical therapy to instruct patients in exercises that passively stretch tight structures and strengthen weak foot intrinsic muscles is also helpful with mild cases. Periodic trimming (debridement) of corns (clavi, helomata) by a podiatrist can provide temporary relief. Corticosteroid injections are often very effective in reducing pain.
Surgical Treatment
Toes can be surgically realigned and made straight again. They can even be made shorter. The good news is that toes can be corrected. Hammer toe surgery is often synonymous with ?toe shortening?, ?toe job? and/or ?toe augmentation?. Depending on the severity and length of the toe, there are several methods to surgically correct a hammer toe. In general, the surgery involves removing a portion of the bone at the contracted joint, to realign the toe.
Prevention
Preventative treatment of hammertoe is directed toward the cause of the deformity. A functional orthotic is a special insert that can be prescribed by your podiatrist to address the abnormal functioning of the foot that causes the hammertoe. Functional orthotics can be thought of as contact lenses for your feet. They correct a number of foot problems that are caused by an abnormally functioning foot. Our feet, much like our eyes, change with time. Functional orthotics slow down or halt this gradual change in the foot. Often when orthotics are used for flexible hammertoes, the toes will overtime straighten out and correct themselves. Calf stretching exercises are also helpful. Calf stretching can help to overcome part of the muscle imbalance that causes the hammertoe.