Five RCTs (n=276) were included. The sample size ranged from 18 to 83.
Two RCTs scored 5 points for validity, one scored 4 and two scored 3.
None of the individual studies reported a statistically significant difference between treatments for pain. Only one study (n=83) with a low quality score of 3 reported a statistically significant difference between treatments in function (SMD -0.58, 95% CI: -1.02, -0.14).
For all studies combined, there was no significant difference between interventions in pain (WMD -0.66, 95% CI: -1.67, 0.35) or function (WMD -0.70, 95% CI: -1.92, 0.52).