Congenital, irreducible, permanent lateral dislocation of the patella.
This is a report of 6 cases (one bilateral) of congenital irreducible, permanent lateral dislocation of the patella, ages 5 to 14; 2 patients were normal and 4 were mongoloid. The dislocation was reduced by means of a newly-devised surgical reconstruction of anterior attachments of nearly all of the para-articular bone and ligamentous structures. The 2-year follow-up results are satisfactory.