Study	Reason for exclusion
Farrands 1987	Letter; not enough information.
Fischer 1991	Review article.
Fischer 1994	Non‐randomised retrospective study.
Klenerman 1977	Cohort study examining use of tourniquet in prophylactic treatment of DVT.
Lahl 2000	Non‐randomised study.
Lofqvist 1988	Non‐randomised study.
Meyer 1997	Non‐randomised study.
Mildner 2000	Non‐randomised study.
Robinson 2000	Non‐randomised study.
Royle 1984	Non‐randomised study.
Sachs 1994	Non‐randomised study. Description of surgical technique.
Streichenberger 1991	Non‐randomised study.
Tsavellas 2000	Non‐randomised study.
Tsavellas 2000b	Postal questionnaire.
Wigger 1998	Review article.