髋臼后柱平行双螺钉数字化解剖学分析

doi:10.6040/j.issn.1671-7554.0.2016.1245

Abstract

Abstract: Objective To provide a safe zone for double screws in the posterior column and to obtain the relevant parameters of two screws. Methods CT scan data of 48 pelvic specimens were analyzed. With the help of Mimics 15.0, 2 parallel cylinders(to substitute for screws)were implanted to the posterior column of the right side acetabulum, and the relevant parameters were measured. Results Posterior cylinder: The average length(L1)was(130.88±6.11)mm in males and(121.47±5.23)mm in females; the average distance(D1)to the linea terminalis was(19.65±2.45)mm in males and(17.89±2.00)mm in females; the average distance(S1)to the junction between the anterior border of iliosacral articulation and linea terminalis of pelvis was(23.71±2.61)mm in males and(25.77±3.11)mm in females. Anterior cylinder: The average length(L2)was(125.25±5.49)mm in males and(116.37±4.83)mm in females; the average distance(D2)to the linea terminalis was(13.21±1.89)mm in males and(11.62±1.39)mm in females; the average distance(S2)to the junction between anterior border of iliosacral articulation and linea terminalis of pelvis was(24.36±3.95)mm in males and(28.15±4.70)mm in females. The average angle 山东大学学报 (医学版)55卷8期 -余也,等.髋臼后柱平行双螺钉数字化解剖学分析 \=-between the cylinders and horizontal plane(α), sagittal plane(β), coronal plane(γ)was(66.18±4.40)°,(10.40±2.48)°,(20.89±5.05)° in males, and(69.01±5.25)°,(5.60±2.56)°,(19.91±5.58)° in females, respectively. The maximum radius of the cylinders was 6.00 mm. Conclusion There is sufficient space for 2 parallel cylinders with the same diameter in the posterior column of the acetabulum, with the maximum radius of the cylinders being less than 6.0 mm.

Key words: Posterior column, Double lag screws, Mimics software, Anatomy

CLC Number:

R641

YU Ye, YANG Xianwei, XU Bo, YAN Qi, MU Weidong. Digital anatomic basis of parallel double screws in the posterior column of the acetabulum[J].JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES), 2017, 55(8): 82-87.

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Digital anatomic basis of parallel double screws in the posterior column of the acetabulum

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