A case study approach was utilized in this article to demonstrate many of the available medical and occupational therapy modalities to treat this condition. It is the middle carpal bone of the proximal carpal row and plays an integral part in carpal kinematics. You may have pain when you move your wrist or pick things up. The result is pain at the base of the thumb and extending into the lower arm. This compartment contains the abductor pollicis longus apl and extensor pollicis brevis epb tendons. Place your hand on a flat surface, with your palm up. Two or sometmes three tendons run through this canal to the thumb. It can develop after a thumb injury, repetitive movements, rheumatoid arthritis and other. It used to be referred to as washerwomans sprain or mothers wrist but with the advent of technology, is now commonly referred to as blackberry thumb from typing and texting on small handheld devices. The lunate derives its name from its similarity in shape to the moon. It develops when the abductor pollicis longus apl and extensor pollicis brevis epb tendons around the base of the thumb become swollen, often causing inflammation to develop.
If you start treatment early, your symptoms should improve within four to six weeks. Once your symptoms are better, work to prevent the condition from happening again. On their way to the thumb, the apl and epb tendons travel side by side along the inside edge of the wrist. Thickening and increased signal of the epb and apl tendons. It commonly manifests in parents of newborns because of repetitive lifting with wrists in radial deviation. Small effusion in the 1st extensor compartment sheath. During the procedure, the patient will generally lie down on the back with the arm out to the side. Directly before the wrist imagine an extension from the thumb to the forearm exist a tunnel. Repetitive movements of the thumb and wrist, as well as. It is a stenosing tenosynovitis of the abductor pollicis longus apl and extensor pollicis brevis epb tendons fig. The extensor pollicis brevis and the abductor pollicis longus muscles are responsible for lifting the thumb up and away from the palm. The provocative finkelstein test, in which the thumb is flexed and held inside a fist, and patient actively clearly deviates the wrist, causes sharp pain along the radial wrist at the first dorsal compartment.
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