title: Clinical outcomes of the KYOCERA Physio Hinge Total Knee System Type III after the resection of a bone and soft tissue tumor of the distal part of the femur.
abstract: OBJECTIVE
  The KYOCERA Physio Hinge Total Knee System Type III (PHKIII) was developed to reconstruct bony defects of the distal femur. The PHKIII is originative in that the metallic parts are fully made of titanium alloy, and this prosthesis has a unique semi-rotating hinge joint and was designed especially for people with the Asian physical body-type. The clinical outcomes of the PHKIII after the resection of musculoskeletal tumors of the distal femur were evaluated.
  
  
  METHODS
  There were 41 males and 28 females with a median age of 48-years. The median duration of follow-up was 57 months.
  
  
  RESULTS
  Eleven early complications and 37 late complications were observed, including 10 recurrences, 7 deep infections, 7 aseptic loosenings, 4 stem breakages, 4 displacements of shaft cap, and one wear of rotation sleeve. Twenty four prosthesis (35%) required a secondary operation because of complications. The five-year overall prosthetic survival rates, -prosthetic survival rate without aseptic loosening, and -limbs preservation rate were 85%, 90%, and 86%, respectively. The mean functional score according to the classification system of the Musculoskeletal Tumor Society was 20.5 points (68%).
  
  
  CONCLUSIONS
  Although continuous follow-up is required, reconstructions using PHKIII are considered to achieve more acceptable functional results.
authors.affiliation: Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie, Japan. matsumin@clin.medic.mie-u.ac.jp
authors.forename: Akihiko
authors.initials: A
authors.lastname: Matsumine
authors.forename: Takafumi
authors.initials: T
authors.lastname: Ueda
authors.forename: Takashi
authors.initials: T
authors.lastname: Sugita
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Yazawa
authors.forename: Kazuo
authors.initials: K
authors.lastname: Isu
authors.forename: Akira
authors.initials: A
authors.lastname: Kawai
authors.forename: Satoshi
authors.initials: S
authors.lastname: Abe
authors.forename: Toshitake
authors.initials: T
authors.lastname: Yakushiji
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hiraga
authors.forename: Akihiro
authors.initials: A
authors.lastname: Sudo
authors.forename: Atsumasa
authors.initials: A
authors.lastname: Uchida
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005266:Femoral Neoplasms / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012509:Sarcoma / Q000601:surgery*; D016896:Treatment Outcome