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Caring for Patients with Lunate Dislocation
Lunate dislocation is a condition in which the lunate bone is dislocated from the lunate fossa of the radius in a volar director into the carpal tunnel or in a dorsal direction. It is typically caused by wrist hyperextension with significant force (i.e. fall on outstretched hand) or forced wrist flexion (e.g. fall on dorsum of flexed, radially deviated hand).
Acute symptoms include pain, severely limited ROM, gross deformity, and swelling of the wrist and hand. There may be a firm, tender mass or palpable step off. The patient may also have impaired sensation and motor function of the hand.
The patient will typically present for physical therapy treatment following surgical stabilization, ligament repair, and postoperative immobilization. Treatment will depend on the surgical procedure and physician orders. Examples of physical therapy treatment include soft tissue mobilization, therapeutic exercise (e.g. passive and active range of motion, strengthening) and modalities (e.g. ultrasound).
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