title: The double-blind test of sodium hyaluronate (ARTZ) on osteoarthritis knee.
abstract: BACKGROUND
  At this time, no definite treatment exists for osteoarthritis disease. Hyaluronate (ARTZ) is one of the most important components of synovial fluid. It is generally accepted that hyaluronic acid protects the articular cartilage and soft tissue surfaces from trauma during joint function.
  
  
  METHODS
  Ninety patients with 116 knees diagnosed as early arthritis (mild to moderate) by four senior orthopaedic surgeons were selected to join this study. The trial design was applied with a double-blind model. The selected patients were randomly injected with 2.5 ml drugs (ARTZ or placebo) intra-articularly once a week for five consecutive weeks without the use of local anesthetic drugs. Evaluation results included grading of subjective and objective symptoms and daily activities. The follow-up period was up to six months after initial injection.
  
  
  RESULTS
  According to the results of clinical evaluation and statistical analysis, SPH (ARTZ) is quite effective for osteoarthritis knees, and significantly better than the placebo. The effective peak was one week after five injections of ARTZ. The effective period could last up to three months without additional treatment. The efficacy of ARTZ on osteoarthritis knees was more prominent for relief of motion pain and improvement of knee movement. No side effects developed during a six month period.
  
  
  CONCLUSIONS
  Based on clinical results here, SPH is a safe drug for administration as an alternative approach to treat the osteoarthritis knee.
authors.affiliation: Department of Orthopedics and Traumatology, Veterans General Hospital-Taipei, Taiwan, R.O.C.
authors.forename: J J
authors.initials: JJ
authors.lastname: Wu
authors.forename: L Y
authors.initials: LY
authors.lastname: Shih
authors.forename: H C
authors.initials: HC
authors.lastname: Hsu
authors.forename: T H
authors.initials: TH
authors.lastname: Chen
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D004311:Double-Blind Method; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage*; D007270:Injections, Intra-Articular; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D006820:Hyaluronic Acid