Document Detail


An anatomical ultrasound study of the long posterior sacro-iliac ligament.
MedLine Citation:
PMID:  20803568     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The long posterior sacro-iliac ligament (LPSL) is directly posterior to the sacro-iliac joint and a potential source of lower back and pelvic pain. Its sonographic anatomy has not been described in detail. The aim of this study was to define and measure the ligament in healthy young women using ultrasound (US). The LPSL was scanned in 30 healthy women (median age, 22 years; range, 20-34) using a high-resolution linear transducer (7.5-10 MHz). The ligament was consistently visualized as a hyperechoic laminated linear structure between the posterior superior iliac spine and the lateral aspect of the third transverse sacral tubercle. Its length, thickness, and the angle between it and the posterior superior iliac spine were measured by an experienced sonographer bilaterally in both semiflexed standing and lateral decubitus positions. Four female cadaver pelves (age range, 57-93 years) were also scanned and dissected to validate US observations. In the semiflexed standing position, mean LPSL length was 37.9 ± 2.4 mm, mean thickness 1.57 ± 0.38mm, and median angle 18.5°. There was no statistically significant difference with equivalent values in the lateral decubitus position. Intrarater repeatability was fair to substantial in both positions (intraclass correlation coefficient, 0.39-0.66), improving to moderate to substantial (intraclass correlation coefficient, 0.57-0.80) using the mean of two measurements. There was good overall agreement between LPSL length and thickness in cadavers measured by US and dissection. These findings document the sonographic appearance, length, and thickness of the LPSL and provide useful normative data for understanding potential LPSL pathology, particularly in relation to pregnancy-related pelvic girdle pain.
Authors:
Abigail E Moore; Ruth Jeffery; Andrew Gray; Mark D Stringer
Related Documents :
19925588 - Key parameters of face shape variation in 3d in a large sample.
18718728 - Craniometric analysis of the modern cretan population.
17256438 - Effects of pacifiers on early oral development.
19113078 - Tooth size discrepancies in female patients with palatally impacted canines.
20412588 - Prevalence of liver fibrosis and risk factors in a general population using non-invasiv...
22733748 - Number sense across the lifespan as revealed by a massive internet-based sample.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical anatomy (New York, N.Y.)     Volume:  23     ISSN:  1098-2353     ISO Abbreviation:  Clin Anat     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8809128     Medline TA:  Clin Anat     Country:  United States    
Other Details:
Languages:  eng     Pagination:  971-7     Citation Subset:  IM    
Affiliation:
Department of Anatomy and Structural Biology, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  The styloid process and its relationship to the facial and hypoglossal nerves.
Next Document:  Longitudinal study of breastfeeding structure and women's work in the Brazilian Amazon.