Possible causes of widening of the inferior ulnar-radial joint gap include congenital widening of the joint gap, degenerative changes of the joint and trauma.
1. Congenital: the joint gap widens due to congenital developmental abnormality, and the gap may gradually widen and worsen with age, resulting in joint deformity, which may lead to joint dislocation in severe cases, and may also cause pain and other discomforts.
2. Degenerative changes in joints: As the joints age with age, the muscles and ligaments around the joints become loose and the joints move, resulting in degenerative changes in the joints.
3. Trauma: After trauma to the lower ulnar-radial joint, local ligament damage occurs, resulting in ligament laxity, there may be a gradual widening of the lower ulnar-radial joint.
There may be other reasons for the widening of the inferior ulnar-radial joint space. If accompanied by pain and other discomforts, you should go to the regular hospital in time, and the doctor will come up with the correct cause according to the specific symptoms, signs and auxiliary examination.