Four clinical tests of sacroiliac joint dysfunction: the association of test results with innominate torsion among patients with and without low back pain.
Levangie PK.
Phys Ther. 1999 Nov;79(11):1043-57.
PMID:10534797
Biomechanical effects of transverse partial sacrectomy on the sacroiliac joints: an in vitro human cadaveric investigation of the borderline of sacroiliac joint instability.