-
- Takuaki Yamamoto and Yukihide Iwamoto.
- Department of Orthopaedic Surgery, Kyushu University.
- Clin Calcium. 2011 Jul 1; 21 (7): 993-1001.
AbstractA subchondral insufficiency fracture of the femoral head (SIF) is a recently proposed concept, which has generally been observed in elderly women with osteoporosis as well as in patients who have undergone a renal transplantation. In addition, this fracture is sometimes seen in young adults. Some cases of subchondral insufficiency fracture were managed by non-operative treatment, while others demonstrated disease progression until bone collapse which necessitated surgery. The low intensity band on the T1-weighted magnetic resonance images has been reported to be one of the characteristic imaging appearances in SIF, which corresponds histologically to the fracture line and associated fracture repair tissue. Therefore, the shape of the low intensity band generally tends to be irregular, disconnected, and convex to the articular surface. This finding has been considered to be useful for the differentiation with osteonecrosis.
Notes
Knowledge, pearl, summary or comment to share?You can also include formatting, links, images and footnotes in your notes
- Simple formatting can be added to notes, such as
*italics*,_underline_or**bold**. - Superscript can be denoted by
<sup>text</sup>and subscript<sub>text</sub>. - Numbered or bulleted lists can be created using either numbered lines
1. 2. 3., hyphens-or asterisks*. - Links can be included with:
[my link to pubmed](http://pubmed.com) - Images can be included with:
 - For footnotes use
[^1](This is a footnote.)inline. - Or use an inline reference
[^1]to refer to a longer footnote elseweher in the document[^1]: This is a long footnote..