title: Intraoperative anthropomorphic study of anterior femoral condyles compared with sizing of femoral arthroplasty.
abstract: OBJECTIVE
  The present study was designed to compare the dimensions of the anterior femoral condyle with those of the anterior component flange using intraoperative morphological data.
  
  
  METHODS
  Overall, 1227 knees in 962 patients were included in this study. The height of the anterior lateral/medial condylar height (ALCH/AMCH) was measured and compared between men and women. These morphological data were compared with the dimensions of the chosen component for each patient. The lateral/medial anterior femoral offset was calculated, and the over-/understuffing rates were compared between men and women.
  
  
  RESULTS
  The median ALCH in men was 8.5 mm (6.5, 10.0 mm) versus 7.0 mm (6.0, 9.0 mm) in women. The median AMCH in men was 4.0 mm (2.5, 6.0 mm) versus 3.5 mm (2.5, 6.0 mm) in women. There was a significant difference between the genders with respect to ALCH (p < 0.05). When the dimensions of the component were compared with those of the native knee, the anterior lateral flange height was smaller than the native knees (1.3 mm in male, 0.7 mm in female), but the anterior medial flange height was larger than the corresponding condyle (1.8 mm in male, 1.8 mm in female). A significant difference was observed between the genders with respect to the ideal fit rate of ALCH (p < 0.01).
  
  
  CONCLUSIONS
  The results demonstrate that gender differences exist in the anterior lateral condyles of knees. The anterior flange of component is not designed to precisely reproduce normal trochlear anatomy.
  
  
  METHODS
  II.
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
authors.forename: Ai-Bing
authors.initials: AB
authors.lastname: Huang
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
authors.forename: Hai-Jun
authors.initials: HJ
authors.lastname: Wang
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
authors.forename: Chang-Hui
authors.initials: CH
authors.lastname: Song
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
authors.forename: Ji-Ying
authors.initials: JY
authors.lastname: Zhang
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China. yujiakuo@126.com.
authors.forename: Jia-Kuo
authors.initials: JK
authors.lastname: Yu
mesh_terms: D000368:Aged; D000886:Anthropometry; D019645:Arthroplasty, Replacement, Knee; D004838:Epiphyses; D005260:Female; D005269:Femur / Q000033:anatomy & histology*; D006801:Humans; D007432:Intraoperative Period; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
keywords: Anterior femoral condyle; Gender; Implant; Knee