Ulnar pseudoarthrosis is a rare condition that affects the ulna bone in the forearm. It occurs congenitally or when the bone doesn't properly heal after #armfracture - leading to formation of a "false joint". Symptoms can include pain, swelling, and obvious visible deformity. Treatment usually requires surgery to correct the bone alignment #ulnarpseudoarthrosis #forearminjury #bonehealth #armdeformity | Cory Calendine, M.D.