Dislocation of the proximal end of the metacarpal bone can occur due to a direct blow to the hand, such as when catching a falling object, or due to a fall onto an outstretched hand. It can also occur due to an injury to the tendons, ligaments, or muscles around the joint.
Diagnosis is usually made through physical examination, and imaging tests such as X-rays, CT scans, and MRI scans may be used to confirm the diagnosis.
Differential diagnoses include fracture of the metacarpal, rheumatoid arthritis, gout, and tendinitis.
Treatment for dislocation of the proximal end of the metacarpal bone typically involves immobilization of the joint, as well as physical therapy to help restore motion and strength. In some cases, surgery may be necessary to realign the bones.
The prognosis for dislocation of the proximal end of the metacarpal bone is generally good, with most patients able to regain full range of motion and strength in the joint. In some cases, however, additional surgery may be necessary to achieve a full recovery.