hammertoe is caused when the middle joint (PIP) bends down towards the floor (flexion). To compensate, the joints above and below (MTP, DIP) bend up (hyperextend). The result is that the middle part of the toe lifts up. Hammertoe is the most common deformity of the lesser toes (i.e. not the big toe). It tends to only affect one toe, most commonly the second.
Hammertoes are a contracture of the toes as a result of a muscle imbalance between the tendons on the top of the toes (extensor tendons) and the tendons on the bottom of the toes (flexor tendons). If there is an imbalance in the foot muscles that stabilize the toe, the smaller muscles can be overpowered by the larger flexor and extensor muscles.
Symptoms include sharp pain in the middle of the toe and difficulty straightening the toe. People with hammertoe may also develop blisters, which are fluid-filled pockets of skin, because the bent toe is likely to rub against the inside of a shoe. This increased friction may also lead to calluses, which are areas of thickened skin, and corns, which are hard lumps that may form on or between toes. Symptoms may be minor at first, but they can worsen over time.
First push up on the bottom of the metatarsal head associated with the affected toe and see if the toe straightens out. If it does, then an orthotic could correct the problem, usually with a metatarsal pad. If the toe does not straighten out when the metatarsal head is pushed up, then that indicates that contracture in the capsule and ligaments (capsule contracts because the joint was in the wrong position for too long) of the MTP joint has set in and surgery is required. Orthotics are generally required post-surgically.
Non Surgical Treatment
There are several treatment options. These are based on how severe the problem has become. The sooner a person seeks treatment, the more options that person may have. Wear properly fitting shoes; this does not necessarily mean expensive shoes. Padding any prominent areas around the bony point of the toe may help to relieve pain. Medication that reduces inflammation can ease the pain and swelling. Sometimes a doctor will use cortisone injections to relieve acute pain. A podiatrist may also custom-make an insert to wear inside your shoe. This can reduce pain and keep the hammer toe from getting worse. Your doctor may recommend foot exercises to help restore muscle balance. Splinting the toe may help in the very early stages.
If conservative treatments fail and your symptoms persist, the doctor may recommend a surgical option to straighten the toe. The procedures used vary greatly, depending upon the reasons for the hammertoe. There are a number of different operations to correct hammertoes, the most common ones involve Soft tissue corrections such as tendon transfers, tendon lengthening, and joint capsule repairs. Digital arthroplasty involves removal of bone from the bent joint to Hammer toes allow the toe to straighten. The temporary use of pins or K-wires may be necessary to keep the toe straight during the healing period. Joint implants are sometimes used to allow for a better range of motion in the toe following surgery. Digital arthrodesis involves the removal of bone from the bent joint and fusing the toe in a straight position. If the corn is due to a bone spur, the most common procedure used is an exostectomy, in which surgically removing it or filing it down removes the bone spur. Because of the possible complications involved with any surgery, one should be sure to understand the risks that may be involved with surgery to correct hammertoes and remove bone spurs.
The key to prevention is to wear shoes that fit you properly and provide plenty of room for your toes. Here?s how to get the right fit. Have your feet properly measured. The best way to do this is to get someone to draw the outline of your foot while you stand barefoot with your full weight on it, then measure the outline at the widest point. Measure the soles of your shoes. Ideally, they should be as wide as your feet, but certainly no more than half an inch narrower. Length matters, too, of course: your shoes should be half an inch longer than your longest toe.