title: Intraoperative morphometric study of gender differences in Asian femurs.
abstract: Sixty-two male and 290 female knees from the Singapore population were measured intraoperatively for anteroposterior (AP) height of both medial and lateral femoral condyles, mediolateral (ML) width, and AP/ML ratio (aspect ratio). Median AP/ML ratio for the medial condyle was 1.00 (range, 0.91-1.18) in men and 1.09 (range, 0.92-1.39) in women. Median AP/ML ratio for the lateral condyle was 0.98 (range, 0.84-1.14) in men and 1.06 (range, 0.89-1.36) in women. Both aspect ratios showed significant differences according to sex (P < .001). We conclude that women generally have narrower femurs than men for any given AP height. The aspect ratios of Asians also appear narrower than that reported in white populations.
authors.affiliation: Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
authors.forename: Pak Lin
authors.initials: PL
authors.lastname: Chin
authors.forename: Tze Tong
authors.initials: TT
authors.lastname: Tey
authors.forename: Mohd Yusof Bin
authors.initials: MY
authors.lastname: Ibrahim
authors.forename: Shi-Lu
authors.initials: SL
authors.lastname: Chia
authors.forename: Seng Jin
authors.initials: SJ
authors.lastname: Yeo
authors.forename: Ngai Nung
authors.initials: NN
authors.lastname: Lo
mesh_terms: D019645:Arthroplasty, Replacement, Knee; D044466:Asian People; D005260:Female; D005269:Femur / Q000033:anatomy & histology* / Q000473:pathology; D006801:Humans; D007719:Knee Joint / Q000033:anatomy & histology* / Q000473:pathology; D008297:Male; D020370:Osteoarthritis, Knee / Q000473:pathology / Q000601:surgery; D012727:Sex Characteristics