title: Theoretical use of 3D CT to predict method of patella realignment.
abstract: Procedures for the treatment of patello-femoral malalignment are grouped into two categories, proximal realignment and distal realignment. However, no clear indications in respect of these realignments have been reported. We have tried to evaluate patello-femoral alignment three-dimensionally using CT. The results lead us to group patients with recurrent patella dislocation into three types. Type 1 comprises patients with normal patello-femoral alignment. Type 2 comprises patients whose patella only deviates laterally and who need proximal realignment. Type 3 comprises patients whose patella and tibial tuberosity both deviate laterally and who need both proximal and distal realignment.
authors.affiliation: Department of Orthopedic Surgery, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, Japan. kyusei@me.ndmc.ac.jp
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Kyosuke
authors.initials: K
authors.lastname: Fujikawa
mesh_terms: D000293:Adolescent; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D004204:Joint Dislocations / Q000145:classification* / Q000000981:diagnostic imaging* / Q000601:surgery; D007719:Knee Joint; D008297:Male; D019637:Orthopedic Procedures; D010329:Patella; D011379:Prognosis; D014057:Tomography, X-Ray Computed