Chinese Journal Of Clinical Anatomy ›› 2012, Vol. 30 ›› Issue (3): 275-278.

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Anatomy basis of unguided sacroiliac joint puncture

ZOU Yu-cong1, LI Yi-kai1, YANG Xian-wen1, CHEN Run-qi1, YU Cheng-fu2   

  1. 1.Traditional Chinese Medicine Academy, Southern Medical University, Guangzhou 510515, China; 2.Department of Radiology, Hospital of Traditional Chinese And Western Medicine Affiliated To Southern Medical University, Guangzhou 510315, China
  • Received:2012-01-20 Online:2012-05-25 Published:2012-06-06

Abstract:

Objective To provide anatomic basis for the feasibility and safety of unguided sacroiliac joint puncture.    Methods    3 sacroiliac joint section specimens, 4 dried pelvic specimens (2 male, 2 female) , 4 antiseptic cadaveric pelvic specimens (3 male.1 female) and 62 ankylosing spondylitis patients' sacroiliac joint CT imaging data were collected and measured. The injection target was designated at the sagittal synovium part below the posterior superior iliac spine.   Results   The average length of sagittal synovium part was about(18.40±3.40)mm in male and (17.32±3.60)mm in female(P>0.05); The average distance between the posterior midline and sagittal synovium part was (41.00±3.30)mm in male and (42.74±4.00)mm in female(P<0.05), with the significant difference; The average distance between the midpoint and posterior superior iliac spine was(27.66±3.10)mm in male and (28.76±3.50)mm in female respectively(P>0.05).   Conclusions According to the sex and thickness of fat, conducting injection in the area of (41.00±3.50)mm away from the posterior midline, (28.00±3.20)mm from the posterior superior iliac spine makes  puncture entering the sacroiliac joint more accurately, easily, and successfully. 

Key words:  Sacroiliac joint, Unguided puncture, Sagittal synovium part

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