Aetiology
Sprain or strain of the carpometacarpal joint of the thumb is caused by repetitive usage of the hand, direct trauma to the joint, or by excessive gripping or twisting of the thumb.
Diagnosis
Diagnosis of a sprain or strain of the carpometacarpal joint of the thumb is typically made based on the patient’s history, physical exam findings, and imaging studies. Pain and swelling in the joint area are common findings.
Differential diagnosis
Differential diagnosis of a sprain or strain of the carpometacarpal joint of the thumb includes other injuries to the thumb such as a fracture, tendonitis, or arthritis.
Treatment
Treatment of a sprain or strain of the carpometacarpal joint of the thumb includes rest, ice, compression, and elevation. Nonsteroidal anti-inflammatory medications may also be prescribed to reduce pain and swelling. Physical therapy may be recommended to help strengthen the joint and improve mobility. In more severe cases, surgery may be necessary to repair any damaged ligaments or tendons in the joint.
Prognosis
With proper rest, treatment, and rehabilitation, most patients can make a full recovery from a sprain or strain of the carpometacarpal joint of the thumb. However, if the injury is not managed properly, it can lead to long-term disability and decreased range of motion of the joint.