PAINFUL BIPARTITE PATELLA FOLLOWING INJURY

We report nine rare cases of painful bipartite patella following injur y to the knee, in seven non-athletic adults. Patients suffered with pe rsistent anterior knee pain and localized tenderness over the superola teral aspect of the patella for an average of 2 years following injury . The clinical, radiographic and arthroscopic findings are described. Excision of the accessory bipartite fragment resulted in satisfactory relief of pain and complete restoration of the knee function in all pa tients at a mean follow-up of 10 months (range 3-36 months). Although painful bipartite patella may be considered rare it should be recogniz ed as a cause of post-traumatic anterior pain in the adult.