Journal of Nippon Medical School
Online ISSN : 1347-3409
Print ISSN : 1345-4676
Case Reports
Unexplained Lower Abdominal Pain Associated with Sacroiliac Joint Dysfunction: Report of 2 Cases
Daijiro MorimotoToyohiko IsuKyongsong KimRyoji MatsumotoMasanori Isobe
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2011 Volume 78 Issue 4 Pages 257-260

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Abstract

A 25-year-old woman and a 31-year-old man presented with chronic lower back pain and unexplained lower abdominal pain. Both patients had groin tenderness at the medial border of the anterior superior iliac spine. The results of radiographical and physical examinations suggested sacroiliac joint dysfunction. Sacroiliac joint injection relieved their symptoms, including groin tenderness. In our experience, groin tenderness is highly specific for sacroiliac joint dysfunction. We speculate that spasm of the iliac muscle can cause groin pain and tenderness. Groin pain and a history of unexplained abdominal pain, with lower back pain, are symptoms that suggest sacroiliac joint dysfunction. Additionally, compression of the iliac muscle is a simple and useful maneuver; therefore, it can be used as a screening test for sacroiliac joint dysfunction, alongside other provocation tests.

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© 2011 by the Medical Association of Nippon Medical School
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