El Dafrawy Mostafa H, Strike Sophia A, Osgood Greg M
Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland.
JBJS Case Connect. 2017 Jul-Sep;7(3):e62. doi: 10.2106/JBJS.CC.17.00058.
The S1 and S2 corridors are the typical osseous pathways for iliosacral screw fixation of posterior pelvic ring fractures. In dysmorphic sacra, the S1 screw trajectory is often different from that in normal sacra. We present a case of iliosacral screw placement in the third sacral segment for fixation of a complex lateral compression type-3 pelvic fracture in a patient with a dysmorphic sacrum.
In patients with dysmorphic sacra and unstable posterior pelvic ring fractures or dislocations, the S3 corridor may be a feasible osseous fixation pathway that can be used in a manner equivalent to the S2 corridor in a normal sacrum.
S1和S2通道是骨盆后环骨折髂骶螺钉固定的典型骨性路径。在形态异常的骶骨中，S1螺钉的轨迹通常与正常骶骨不同。我们报告了1例在形态异常的骶骨患者中，将髂骶螺钉置入第三骶椎节段以固定复杂的侧方压缩型3型骨盆骨折的病例。
对于形态异常的骶骨且伴有骨盆后环骨折或脱位不稳定的患者，S3通道可能是一种可行的骨性固定路径，其使用方式可等同于正常骶骨中的S2通道。
