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. 2009 Aug 7;468(3):769–774. doi: 10.1007/s11999-009-1021-5

Fig. 5A–D.

Fig. 5A–D

(A) A 38-year-old man with −2° pelvic tilt and neutral rotation had bilateral ISS and crossover sign. (B) A 24-year-old man with −4° pelvic tilt and neutral rotation had bilateral negative ISS and crossover sign. The visible joint line (single line arrow) is the first joint of the coccyx. The sacrococcygeal joint (double line arrow) lies between the sacrum and the first vertebra of the coccyx. (C) A 34-year-old man with excessive pelvic tilt (11°) and neutral rotation had bilateral ISS and crossover sign. (D) A 29-year-old woman with neutral tilt and 5° rotation to the left had ISS and crossover sign on the left, whereas negative values were found on the right.