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. 2006 Apr 19;2006(2):CD005321. doi: 10.1002/14651858.CD005321.pub2

Frizziero 2002.

Methods Randomised
 Controlled
 Trial
 Single‐blind
 Blinded assessor for
 arthroscopic assessment.
 Parallel‐group
 Single centre
Participants Country:
 Italy
 Mean age: 50
 % Female: 53
 Mean disease
 duration: 25 mth
 Duration: 6 mth
 Number randomised: 99
 (HA 52, MP 47)
 Inclusion:
 Outpatient re‐
 ferred to Rheumatology 
 Unit for OA over a 3 yr period
 Primary OA or OA secondary to traumatic events to the knee.
 Kellgren and 
 Lawrence Grades I to III
 Fulfill clinical and radiological criteria of ACR
 Exclusion:
 Pt judged not
 controllable or
 unreliable.
 Presence of severe concom‐
 itant diseases,
 suspected joint infection.
 Concomitant treatment with NSAID
 IA steroid treatment in previous 3 mth
 Pregnancy and breast feeding
 Baseline:
 Pain after spontaneous movement:
 HA: NR
 MP: NR
 Pain after forced movement
 HA: NR
 MP: NR
Interventions Hyalgan
 (20 mg/2ml)
 5 weekly injections
 Methylpredniso‐
 lone acetate
 3 weekly injections
Outcomes Noctural pain,
 pain at rest,
 pain on spontan‐
 eous or forced
 movement,
 pain on touch (all on 100 mm VAS)
 morning stiffness (min),
 joint motion 
 (max active flexion/extension)
 pt and MD opinion of efficacy (0=poor (unsatisfactory),
 1=scarce,2=fair,
 3=good,4=excel‐
 lent)
 use of analgesic
 or NSAID
 cartilage damage (modified version of the Outer‐
 bridge & Noyes scales): degree of cartilage damage (5 point scale) and extent of cartilage lesions
 (6 point scale)
Notes Jadad's:4/5
 R‐2,B‐1,W‐1
 When OA was bilateral, most severely affected knee selected for treatment.
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Low risk A ‐ Adequate