title: [Is there a correlation between clinical results or quality of life and radiological findings after implantation of a total knee prosthesis?].
abstract: OBJECTIVE
  To establish whether there is a clinical correlation between clinical outcome or quality of life and radiographic findings.
  
  
  METHODS
  17 patients (mean age 68.2 years) with total knee arthroplasty were examined after an average follow-up of 24.6 months. The examination included the HSS score for clinical parameters, and the SF-36 questionnaire quality of life. Radiographs were evaluated in accordance with Ewald and Lotke, and a schema of our own.
  
  
  RESULTS
  The HSS score returned a mean of 81 points, and the SF-36 questionnaire showed significantly poorer results in comparison with age-matched healthy subjects. The Lotke evaluation of the X-rays showed a mean value of 76.3. Correlations between the radiographic findings and the HSS score were not seen. Correlations between X-ray parameters (Ewald and Lotke) and the SF-36 were found only for pain and vitality.
  
  
  CONCLUSIONS
  This is the first study to investigate the correlation between clinical parameters (including quality of life) and X-ray findings. Neither the clinical score nor the quality of life score was found to correlate with the radiographic findings. Nor was more than minimal correlation found between quality of life and HSS score. These results show that the presence of radiolucent lines or deviations from the perfect prosthesis position must not necessarily be considered to be of importance for clinical outcome and quality of life.
authors.affiliation: Klinik und Poliklinik für Allgemeine Orthopädie, Westfälischen Wilhelms-Universität Münster 1, Krankenhaus Bethanien Moers 2. fuchssu@uni-muenster.de
authors.forename: S
authors.initials: S
authors.lastname: Fuchs
authors.forename: M G
authors.initials: MG
authors.lastname: Floren
authors.forename: C
authors.initials: C
authors.lastname: Chylarecki
authors.forename: D
authors.initials: D
authors.lastname: Bettin
mesh_terms: D000203:Activities of Daily Living / Q000145:classification; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D010147:Pain Measurement; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011474:Prosthesis Design; D011788:Quality of Life; D011859:Radiography
vernacular_title: Besteht eine Korrelation zwischen klinischen Ergebnissen oder der Lebensqualität und dem radiologischen Befund nach Implantation einer totalen Knieendoprothese?