Study	Reason for exclusion
Anderson 2005	Wrong study design ‐ not an RCT
Baumgartner 1979	Wrong study design ‐ not an RCT
Campbell 1987	Wrong comparator ‐ not above‐knee amputation
Dustmann 1985	Wrong study design ‐ not an RCT
Hagberg 1992	Wrong study design ‐ not an RCT
Houghton 1989	Wrong study design ‐ not an RCT
Jeans 2011	Wrong study design ‐ not an RCT
Kahle 2016	Unable to locate full text
Knahr 1979	Wrong study design ‐ not an RCT
NCT03900845	Wrong intervention ‐ not through‐knee amputation
NCT04023045	Wrong intervention ‐ not through‐knee amputation
NCT04120558	Wrong study design ‐ not an RCT

RCT: randomised controlled trial