Table 2.

Selection criteria as stated in each study

Trial	Medial foot/ankle pain	Pain PTT	Swelling of PTT	TOP PTT	Correctable flatfoot deformity	Foot flattening	Abducted mid-foot	Duration of symptoms	Imaging	Other inclusion criteria
Houck et al 32	NR	Either		NR	√	NR	NR	NR	NR	Able to walk >15 m >40 years of age
Jeong et al 31	√	√	NR	√	NR	NR	NR	NR	NR	NR
Kulig et al 33	√	NR	NR	√	√	√	√	>3 months	NR	NR

√, essential eligibility criteria for the study; either, one finding from this group of tests/clinical findings was required.

NR, not reported; PTT, posterior tibial tendon; TOP, tender on palpation.