The function of sacroiliac joint consists in securing segmental stability. Painful stimuli interfering in locomotion subprograms result in destabilization, which becomes manifest in changes of the position and dynamics of sacroiliac joint, as demonstrated in development of asymmetry and present phenomenon of gaining (time). The limitation of free movements results in decreasing sector stability and subsequent development of inhibition programs which secure postural function. Changes may be observed especially in the soft parts, which play a dominant role in the formation of sacroiliac dysfunction. In the observed group the authors detected more frequent functional disorders in the region of sacroiliac articulation and pelvis in patients after injuries of lower extremities as compared with the control group. The paper was aimed at drawing attention to the need to include adjustment of these functional disorders into complex rehabilitation of posttraumatic conditions of lower extremities.

        Key words: sacroiliac dysfunction, stabilization, chain of functional disorders