Sacral insufficiency fracture: Difference between revisions
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[[Image:Sacral-insufficiency-fracture-003.jpg|right|250px]] | [[Image:Sacral-insufficiency-fracture-003.jpg|right|250px]] | ||
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==History and Symptoms== | |||
== | |||
*Typically, patients present with groin, low back, or buttock pain. | *Typically, patients present with groin, low back, or buttock pain. | ||
*Patients present with either no history of trauma or a history of low impact trauma. | *Patients present with either no history of trauma or a history of low impact trauma. | ||
==Causes== | ==Causes== | ||
* Postmenopausal [[osteoporosis]] (most common) | * Postmenopausal [[osteoporosis]] (most common) | ||
* Senile osteoporosis | * Senile osteoporosis | ||
| Line 20: | Line 17: | ||
==Diagnostic Findings== | ==Diagnostic Findings== | ||
===Plain | ===Plain Film=== | ||
* The most common finding is a sclerotic band or line. | * The most common finding is a sclerotic band or line. | ||
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* [http://goldminer.arrs.org/search.php?query=sacral%20insufficiency%20fracture Goldminer: Sacral insufficiency fracture] | * [http://goldminer.arrs.org/search.php?query=sacral%20insufficiency%20fracture Goldminer: Sacral insufficiency fracture] | ||
== | ==Sources== | ||
* Wilfred CG. [http://www.emedicine.com/radio/topic545.htm E-medicine rads article] | * Wilfred CG. [http://www.emedicine.com/radio/topic545.htm E-medicine rads article] | ||
[[Category:Orthopedics]] | [[Category:Orthopedics]] | ||
[[Category:Emergency medicine]] | [[Category:Emergency medicine]] | ||
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Revision as of 16:28, 26 February 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
History and Symptoms
- Typically, patients present with groin, low back, or buttock pain.
- Patients present with either no history of trauma or a history of low impact trauma.
Causes
- Postmenopausal osteoporosis (most common)
- Senile osteoporosis
- Pelvic irradiation
- Corticosteroid therapy
- Rheumatoid arthritis
Diagnostic Findings
Plain Film
- The most common finding is a sclerotic band or line.
- Lytic fracture line or cortical break rarely is observed.
CT
- Sacral fractures typically are oriented vertically and located parallel to the sacroiliac joints.
- Linear fracture line with surrounding sclerosis is observed.
MRI
- Decreased signal on T1-weighted images and increased signal on T2-weighted images.
- Signal changes are seen as linear bands within the sacral ala and body and are parallel to the sacroiliac joints.
- On T2-weighted images, the fracture line may be seen if it is surrounded by adjacent marrow edema.
Nuclear Medicine
- H or "Honda sign" which indicated horizontal involvement of the sacrum and vertical involvement of the sacral ala
- The "dot and dash" pattern is another common appearance.
Images
External Links
Sources
- Wilfred CG. E-medicine rads article