title: A case of bilateral duplication of the patella.
abstract: A boy with bilateral duplication of his patellae was radiographically examined between 8 and 11 years of age. The duplication was probably caused by a disrupted fusion of two ossification centra.
authors.affiliation: Lund University Hospital Department of Orthopedics, Lund, Sweden.
authors.forename: G
authors.initials: G
authors.lastname: Hägglund
authors.forename: H
authors.initials: H
authors.lastname: Pettersson
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D010329:Patella / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate
chemical_list: D013669:Technetium Tc 99m Medronate