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Hallux Rigidus: A Degenerative Toe Arthritis

A painful and insidious condition  of big toes that can lead to significant limitations in an athlete’s ability to perform and bend the toe. Arthritis is often described as a wearing out or erosion of the cartilage between the joints. With increased motion within the joints, there’s a gradual increase in the amount of erosion, causing greater damage within the joint.

This disorder can be very troubling and even disabling, since  the big toe is used  whenever we walk, stoop down, climb up, or even stand. Many patients confuse hallux rigidus with a bunion, which affects the same joint, but they are very different conditions requiring different treatment.

This condition also occurs when the golf players apply excessive pressure to the big toe during the golf swing. Typically it will occur at the end of the follow through and will only happen on the dominant foot. In other words, if the golfer is right-handed, the right hallux will be the involved toe. This can cause a jamming of the toe into the top of the shoebox. With repetition, the subungual tissue will be injured and blood will form under the nail plate. This can cause pain due to the pressure the blood exerts on the nail bed.

It begins with limited toe motion, being referred to as   “hallux limitus.” But as the problem advances, the toe’s range of motion gradually decreases until it potentially reaches the end stage of “rigidus,” in which the big toe becomes stiff, or what is sometimes called a “frozen joint.”

Cause:

Movement of the big toe joint occurs typically in an up and down plane only (dorsiflexion and plantarflexion). The normal dorsiflexion is approximately 75 degrees and plantarflexion is 25 degrees.

Limited motion can be a result of :

Most people with flat feet or low arches are more susceptible to developing hallux rigidus deformity.

Symptoms:

Pain about the first first metatarsophalangeal joint ( MTPJ) is the presenting symptom of patients who have hallux rigidus. The patient may or may not be aware of the limitation of joint motion. Given the limitation of dorsiflexion, patients may complain of increased difficulty with activities that require greater dorsiflexion demands, such as walking up an incline, squatting or running.

As the disorder progresses, other symptoms including pain while at rest, limping or the inability to wear certain shoes (result of bone spur) will become more noticeable. The patient might complain dull pain in the hip , knee, or lower Back due to changes in walk. Limping might occur in severe cases.

 

Diagnosis:

The most common symptoms include pain and swelling within the joint. If diagnosed at early stage, you  stand a better chance to remain comfortable and active for many years. The diagnosis of hallux rigidus is made after a thorough examination of your foot by an orthopedic surgeon which may also include diagnostic x-rays.

Treatment:

Early non-surgical treatment for mild cases of Hallux rigidus may include:

As the symptoms subside the athlete can return to activity, you can protect the hallux from excessive dorsiflexion with taping. Apply the taping in a figure-eight loop around the proximal phalanx and attach it to the plantar surface of the foot.

Surgical Treatment

The surgical treatment for hallux rigidus is determined by the extent of the arthritis and deformity. For the more minor type of hallux rigidus, shaving the bump of the bone on top of the metatarsal is sufficient (a cheilectomy). As the stiffening of the big toe joint increases a cheilectomy is not sufficient and an additional bone cut may needed on the big toe itself, (an osteotomy of the phalanx).

As the arthritis increases, the ability of an osteotomy or cheilectomy to correct the problem, maintain motion, and prevent the arthritis from worsening is very limited. For these patients, either a fusion of the big toe (an arthrodesis) or removal of bone from the joint (an arthroplasty) is performed.

References:

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