Müller‐Rath 2011.

Methods	RCT; randomisation procedure and blinding of outcome assessment not described
Participants	Symptomatic varus knee OA: n = 33 Male/female: 24/9 Mean age (years): 53 Mean BMI (kg/m2): 27.2
Interventions	I = valgus knee brace or elastic knee bandage vs C = no treatment Follow‐up: 16 weeks
Outcomes	Tegner, Insall, Lequesne, WOMAC, HSS, VAS
Notes	Number of participants lost to follow‐up is not reported. Study is funded by Medi, provider of orthoses. Study authors could not provide their data because of a "server breakdown"
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding (performance bias and detection bias) All outcomes	High risk	Not blinded
Blinding of participants and personnel (performance bias) All outcomes	High risk	Not blinded
Blinding of outcome assessment (detection bias) All outcomes	High risk	Not blinded
Incomplete outcome data (attrition bias) All outcomes	High risk	No lost participants were reported; study authors could not provide their data because of a "server breakdown"
Selective reporting (reporting bias)	High risk	No intention‐to‐treat