Radiographic assessment of sacral hiatus anatomy with backache.

Pak J Med Sci

Dr. Saneed Khaliq, MPhil, Department of Anatomy, Mekran Medical College, Turbat, Balochistan Pakistan.

Published: January 2023

AI Article Synopsis

  • The study aimed to explore differences in hiatal variations between individuals with backache and healthy controls, as well as the relationship between age groups and hiatal features in these patients.
  • A total of 178 participants (89 with back pain and 89 controls) aged 18-65 were analyzed using lumbosacral spine radiographs to assess sacral hiatus metrics and shapes.
  • Results indicated that the inverted "U" shape was most common in backache patients, especially with a higher risk linked to an elevated apex at the first sacral vertebra (S1), suggesting a strong correlation between specific hiatal shapes and low back pain.

Article Abstract

Objectives: To determine hiatal variations in cases of backache and controls on radiographs and association of age groups with hiatal parameters in patients with backache versus normal individuals.

Methods: This case control study on 178 patients (89 cases and 89 controls), aged from 18-65 years, selected by non-probability convenience sampling was conducted at Radiology Department of PNS Shifa Hospital, Karachi over six months.The sacral hiatus was identified on lumbosacral spine radiographs. Both metric and non-metric parameters of hiatus with respect to sacral vertebra were noted and compared between the groups.

Results: Inverted "U" was the most common type observed in cases with base of hiatus at S5 level. Comparison of hiatal shape among different age groups showed inverted "U" and inverted "V" types among all age groups. Hiatal anteroposterior diameter and width were greatest in 36-45-year age group, and it was longest in 46-55-year age group. Determination of relationship between sacral hiatal parameters and incidence of low back pain showed positive association of inverted "U" and "M" shapes with back pain. Increased risk of back pain was observed with high apex (first sacral vertebra (S1)).

Conclusion: Strong positive correlation was determined with inverted "U" and "M" shapes, and level of apex at S1 with low backache.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10626087PMC
http://dx.doi.org/10.12669/pjms.39.6.7112DOI Listing

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