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Overview
Uneven 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
Shoes that narrow toward the toe force the smaller toes into a bent upward position. This makes the toes rub against the inside of the shoe, and creates corns and calluses, aggravating the toes further. If the shoes have a high heel, the feet are forced forward and down, squeezing the toes against the front of the shoe, which increases the pressure on the toes and makes them bend further. Eventually, the toe muscles become unable to straighten the toe.

Symptoms
Symptoms of a hammertoe are usually first noticed as a corn on the top of the toe or at the tip which produces pain with walking or wearing tight shoes. Most people feel a corn is due to a skin problem on their toes, which in fact, it is protecting the underlying bone deformity. A corn on the toe is sometimes referred to as a heloma dura or heloma durum, meaning hard corn. This is most common at the level of the affected joint due to continuous friction of the deformity against your shoes.

Diagnosis
Hammertoes are progressive, they don?t go away by themselves and usually they will get worse over time. However, not all cases are alike, some hammertoes progress more rapidly than others. Once your foot and ankle surgeon has evaluated your hammertoes, a treatment plan can be developed that is suited to your needs.

Non Surgical Treatment
Early on, when a hammertoe first starts and is still flexible, here are some ways it might be treated. Your healthcare provider may splint or tape the toe into the correct, normal position. You can use your fingers to stretch your toes and toe joints toward a more normal position. Exercise your toes by trying to pick up marbles with them or by wadding up a towel on the floor with your toes. Padding may be used to change where your weight falls when you walk on the foot.

Surgical Treatment
Probably the most frequent procedure performed is one called a Post or an Arthroplasty. In this case a small piece of bone is removed from the joint to straighten the toe. The toe is shortened somewhat, but there is still motion within the toe post-operatively. In other cases, an Arthrodesis is performed. This involves fusing the abnormally-contracted joint. The Taylor procedure fuses only the first joint in the toe, whereas the Lambrinudi procedure fuses both joints within the toe. Toes which have had these procedures are usually perfectly straight, but they take longer to heal and don't bend afterwards. A Hibbs procedure is a transfer of the toe's long extensor tendon to the top of the metatarsal bone. The idea of this procedure is to remove the deforming cause of the hammertoes (in this case, extensor substitution), but to preserve the tendon's function in dorsifexing the foot by reattaching it to the metatarsals. Fortunately, the Gotch (or Gotch and Kreuz) procedure--the removal of the base of the toe where it attaches to the foot, is done less frequently than in years past. The problem with this procedure is that it doesn't address the problem at the level of the deformity, and it causes the toe to become destabilized, often resulting in a toe that has contracted up and back onto the top of the foot. You can even have an Implant Arthroplasty procedure, where a small, false joint is inserted into place. There are several other procedures, as well.

Prevention
There should be at least one-half inch between the tip of your longest toe and the front of the shoe. Never buy shoes that feel tight and expect them to stretch with wearing. If you have prominent areas on your feet such as hammertoes and bunions, avoid shoes with a lot of stitching or multiple pieces of fabric, as these stitched areas tend not to stretch to accommodate various toe deformities.