The management of intra-articular fractures remains difficult. Shape m
emory compression staples fulfil nearly all the special treatment requ
irements of intra-articular fractures. Early bone union and 93.5 per c
ent satisfactory function were achieved in a series of 121 cases. Stab
le fixation, 'early' movement and continuous compressive force produce
d by the staple are the main factors contributing to good results.