title: Simultaneous avulsion of patellar apexes bilaterally in a hemodialysis patient.
abstract: A case of simultaneous bilateral avulsion of the patellar apexes is reported. Plain radiography showed bilateral patella alta, but MR imaging was diagnostic. Weakness of the tendo-osseous junction due to secondary hyperparathyroidism and additional chronic inflammatory changes due to repeated microtrauma were considered to be the cause of the rupture.
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Iwate Medical University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Munakata
authors.forename: J
authors.initials: J
authors.lastname: Nishida
authors.forename: T
authors.initials: T
authors.lastname: Shimamura
authors.forename: S
authors.initials: S
authors.lastname: Ichinohe
authors.forename: M
authors.initials: M
authors.lastname: Abe
authors.forename: S
authors.initials: S
authors.lastname: Ehara
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000150:complications; D004204:Joint Dislocations / Q000175:diagnosis*; D007676:Kidney Failure, Chronic / Q000628:therapy; D008279:Magnetic Resonance Imaging; D010329:Patella / Q000293:injuries*; D017847:Patellar Ligament / Q000293:injuries; D006435:Renal Dialysis; D012421:Rupture