title: Sleeve fracture at the superior pole of the patella.
abstract: We present a sleeve fracture at the superior pole of the patella in a 12-year-old boy. Sleeve fractures at the inferior pole of the patella have been well described in the orthopedic and radiologic literature. However, a similar injury at the superior pole of the patella is relatively rare. We hope that awareness of this unusual injury and its imaging findings will allow timely diagnosis and intervention.
authors.affiliation: Department of Radiology, Roy J. and Lucille A. Carver University of Iowa College of Medicine, Iowa, IA, USA. geetika-khanna@uiowa.edu
authors.forename: Geetika
authors.initials: G
authors.lastname: Khanna
authors.forename: Georges Y
authors.initials: GY
authors.lastname: El-Khoury
mesh_terms: D002370:Casts, Surgical; D002648:Child; D003937:Diagnosis, Differential; D050723:Fractures, Bone / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010329:Patella / Q000293:injuries*; D011859:Radiography