Table 1

Timing of the outcome assessment

T0 1 WEEK PRIOR TO SURGERY
 T1 END OF CLINICAL PHASE
 T2 17 DAYS AFTER SURGERY
 T3 6 WEEKS AFTER SURGERY
 T4 12 WEEKS AFTER SURGERY
Range of motion
 X
 X
 X
 X
 X
Knee Society Score
 X
 X
 X
 X
 X
WOMAC
 X
X
 X
 X
Perceived effect

X
 X
 X
Pain medication
X
 X
 X
 X
Satisfaction with treatment

X
 X
 X
Satisfaction with results

X
 X
 X
Adherence

X

Quantity, duration and kind of treatment

X
 X
 X

Lenssen et al. BMC Musculoskeletal Disorders 2008 9:60   doi:10.1186/1471-2474-9-60