Knuckles. Can : fractures and a late effect of a fracture maybe joint pain and irritation and even posttraumatic arthritis. Something else that can affect the tendon over knuckle is a small tear in the sagittal bands or joint capsule. Old ligament injuries can also affect a joint. For something like this A visit with a hand surgeon is likely one of the better options
Answered 11/28/2017
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5 doctors weighed in across 3 answers
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