What type of arthis does nf cause?

Von Recklinghausen. Neurofibromatosis type 1 can affect bones and joints. It causes a condition called pseudoarthrosis. The type 2 can also, but mainly the spine.
Various expressions. Nf1 can involve soft tissues with changes in and around joints.Nf can cause over- and undergrowth of bones causing leg length discrepancies which can affect function of more proximal joints. In the hip the covering acetabulum can develop abnormally. Scoliosis can affect many with nf from mild to severe causing back pain.Pseudarthroses of long bones are fractures related to dysplasia of bones.