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CMC Arthritis
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The most common site for degenerative arthritis is at the CMC (Carpometacarpal) joint of the thumb (see figure.) This type of arthritis can be attributed to repetitive activities and may be work related. In other instances, it can be caused by a previous injury to the joint. Most commonly there is no specific cause and the arthritis develops for unknown reasons.
People with CMC arthritis find everyday tasks very painful and difficult to perform. Simple activities such as holding eating utensils or a glass of water can be too painful to perform. The pain can be so unbearable that it interferes with one's quality of life at times indicating surgical intervention. Therapy has been an effective treatment for the relief of symptoms for CMC joint pain. Treatment initially begins with splinting the thumb in a comfortable position. The patient is then educated on joint protection techniques and work simplification. Modalities such as ultrasound and iontophoresis have been effective to reduce inflammation and pain. An occupational therapist is trained in providing hand therapy to reduce the symptoms of CMC joint pain. In the worst cases a patient may require a joint fusion or replacement to relieve pain if conservative measures don't provide relief. References |
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