“…Ten studies 5 , 11 – 15 , 19 , 23 , 28 , 29 met inclusion and exclusion criteria ( Figure 1 ) (two with level 1 evidence, 12 , 28 one level 2, 14 one level 3, 13 and six level 4 5 , 11 , 15 , 19 , 23 , 29 ). Of these, 3 studies 14 , 19 , 23 reported outcomes specific to the PF joint, 4 studies 11 – 13 , 28 reported outcomes specific to the TF joint, and 3 studies 5 , 15 , 29 reported outcomes specific to both PF and TF joints. Nine studies 11 – 15 , 19 , 23 , 28 , 29 excluded patients with diffuse or inflammatory/metabolic arthritis.…”