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MCP JOINT. The metacarpophalangeal (MCP) joint most commonly dislocated is that of the thumb. A simple dislocation involves no soft tissue obstruction, and reduction should be attempted. A complex dislocation involves intervening soft tissue (i.e., ligaments, musculature, or fascia) and requires surgical reduction.CP JOINT. The metacarpophalangeal (MCP) joint most commonly dislocated is that of the thumb. A simple dislocation involves no soft tissue obstruction, and reduction should be attempted. A complex dislocation involves intervening soft tissue (i.e., ligaments, musculature, or fascia) and requires surgical reduction.
Signs and Symptoms. Signs of a dislocated intraocular lens (IOL) are the following: the absence of the lens when examining the front part of the eye, viewing the edge of the lens in the slit lamp or seeing the lens at the back of the eye. The patient may notice the edge of the lens implant or even have double vision.