title: Anthropometric measurements of tibial plateau and correlation with the current tibial implants.
abstract: OBJECTIVE
  The aim of the study was to make an anthropometric analysis at the resected surfaces of the proximal tibia in the Turkish population and to compare the data with the dimensions of tibial components in current use. We hypothesized that tibial components currently available on the market do not fulfil the requirements of this population and a new tibial component design may be required, especially for female patients with small stature.
  
  
  METHODS
  Anthropometric data from the proximal tibia of 226 knees in 226 Turkish subjects were measured using magnetic resonance imaging. We measured the mediolateral, middle anteroposterior, medial and lateral anteroposterior dimensions and the aspect ratio of the resected proximal tibial surface. All morphological data were compared with the dimensions of five contemporary tibial implants, including asymmetric and symmetric design types.
  
  
  RESULTS
  The dimensions of the tibial plateau of Turkish knees demonstrated significant differences according to gender (P < 0.05). Among the different tibial implants reviewed, neither asymmetric nor symmetric designs exhibited a perfect conformity to proximal tibial morphology in size and shape. The vast majority of tibial implants involved in this study tend to overhang anteroposteriorly, and a statistically significant number of women (21 %, P < 0.05) had tibial anteroposterior diameters smaller than the smallest available tibial component.
  
  
  CONCLUSIONS
  Tibial components designed according to anthropometric measurements of Western populations do not perfectly meet the requirements of Turkish population. These data could provide the basis for designing the optimal and smaller tibial component for this population, especially for women, is required for best fit.
  
  
  METHODS
  II.
authors.affiliation: Department of Orthopaedic Surgery and Traumatology, Faculty of Medicine, Selcuk University, Konya, 42075, Turkey. farukerkocak@gmail.com.
authors.forename: Omer Faruk
authors.initials: OF
authors.lastname: Erkocak
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey.
authors.forename: Fatih
authors.initials: F
authors.lastname: Kucukdurmaz
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey.
authors.forename: Safak
authors.initials: S
authors.lastname: Sayar
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey.
authors.forename: Mehmet Emin
authors.initials: ME
authors.lastname: Erdil
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey.
authors.forename: Hasan Huseyin
authors.initials: HH
authors.lastname: Ceylan
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Tuncay
mesh_terms: D000886:Anthropometry; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery; D007720:Knee Prosthesis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D013977:Tibia / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000601:surgery; D014421:Turkey
keywords: Magnetic resonance imaging (MRI); Tibial component; Tibial plateau anthropometry; Total knee arthroplasty (TKA)