title: Can total knee arthroplasty (TKA) achieve its goal in knee flexion floor activity of Thai Buddhist monks?
abstract: OBJECTIVE
  To study knee's angulation required for Thai Buddhist monks whose activity based on floor sitting basis. And to identify an inter-observer reliability of knee flexion measurement based on radiologic reading.
  
  
  METHODS
  Descriptive analysis study comprised of measuring bilateral knee flexing angulation in 4 postures of floor activities; kneeling, monk's position in both right and left manner and sit cross-legged position, in 35 Thai Buddhist monks at Priest Hospital using plain radiograph image. The radiograph imaging for each patient was performed by one radiologist and two orthopedics. The measurement result was also analyzed for inter-observer reliability.
  
  
  RESULTS
  Mean knee flexion angle in kneel, left monk's position, right monk's position and sit cross-legged postures were 163.21, 146.49, 148.89 and 138.38 degree, respectively. No statistical difference between knee flexion measurements among 3 investigators.
  
  
  CONCLUSIONS
  Daily floor activity of Thai Buddhist monks need more flexion capacity than that can achieve by total knee arthroplasty instrument using nowadays.
authors: Department of Orthopaedics, The Priest Hospital, Bangkok, Thailand. viriya.sre@hotmail.com
authors: Viriya
authors: V
authors: Sresuriyasawad
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D002016:Buddhism; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology*; D008297:Male; D019122:Meditation; D008875:Middle Aged; D011187:Posture; D016059:Range of Motion, Articular; D012067:Religion; D013785:Thailand