Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion
Acetabular retroversion is a relatively common condition affecting the hip that can result in symptoms in some patients. Diagnosis of acetabular retroversion relies on obtaining a proper anteroposterior radiograph of the pelvis. Cross-over, posterior wall, and ischial spine signs are usually present...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-03-01
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| Series: | Arthroplasty Today |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344119301682 |
| _version_ | 1818327432104509440 |
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| author | Shaoqi Tian, MD Hamed Vahedi, MD Karan Goswami, MD Javad Parvizi, MD, FRCS |
| author_facet | Shaoqi Tian, MD Hamed Vahedi, MD Karan Goswami, MD Javad Parvizi, MD, FRCS |
| author_sort | Shaoqi Tian, MD |
| collection | DOAJ |
| description | Acetabular retroversion is a relatively common condition affecting the hip that can result in symptoms in some patients. Diagnosis of acetabular retroversion relies on obtaining a proper anteroposterior radiograph of the pelvis. Cross-over, posterior wall, and ischial spine signs are usually present in patients on the radiographs of patients with acetabular retroversion. In this illustrative case report, we describe an additional radiographic sign, elephant’s ear sign, associated with acetabular retroversion that we have seen to be present in patients with acetabular retroversion. A review of 26 acetabular retroversion case series by 2 independent reviewers showed 100% consensus on the presence of elephant’s ear sign in patients with evidence of all other radiographic signs of this hip abnormality. This simple and previously unreported radiographic Elephant’s ear sign, in which flared iliac wings appear as elephant’s ears, highlights the presence of acetabular retroversion. Keywords: Acetabular retroversion, Hip, Radiographs, Elephant’s ear sign |
| first_indexed | 2024-12-13T12:16:10Z |
| format | Article |
| id | doaj.art-a20a9dbb406a443d9d498b968835f4a8 |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-12-13T12:16:10Z |
| publishDate | 2020-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-a20a9dbb406a443d9d498b968835f4a82022-12-21T23:46:43ZengElsevierArthroplasty Today2352-34412020-03-01615961Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversionShaoqi Tian, MD0Hamed Vahedi, MD1Karan Goswami, MD2Javad Parvizi, MD, FRCS3Department of Orthopaedic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, China; Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USA; Corresponding author. Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th Street, Suite 1000, Philadelphia, PA 191017, USA. Tel.: +1 267 339 7813.Acetabular retroversion is a relatively common condition affecting the hip that can result in symptoms in some patients. Diagnosis of acetabular retroversion relies on obtaining a proper anteroposterior radiograph of the pelvis. Cross-over, posterior wall, and ischial spine signs are usually present in patients on the radiographs of patients with acetabular retroversion. In this illustrative case report, we describe an additional radiographic sign, elephant’s ear sign, associated with acetabular retroversion that we have seen to be present in patients with acetabular retroversion. A review of 26 acetabular retroversion case series by 2 independent reviewers showed 100% consensus on the presence of elephant’s ear sign in patients with evidence of all other radiographic signs of this hip abnormality. This simple and previously unreported radiographic Elephant’s ear sign, in which flared iliac wings appear as elephant’s ears, highlights the presence of acetabular retroversion. Keywords: Acetabular retroversion, Hip, Radiographs, Elephant’s ear signhttp://www.sciencedirect.com/science/article/pii/S2352344119301682 |
| spellingShingle | Shaoqi Tian, MD Hamed Vahedi, MD Karan Goswami, MD Javad Parvizi, MD, FRCS Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion Arthroplasty Today |
| title | Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion |
| title_full | Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion |
| title_fullStr | Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion |
| title_full_unstemmed | Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion |
| title_short | Elephant’s ear sign: a new radiographic finding indicative of acetabular retroversion |
| title_sort | elephant s ear sign a new radiographic finding indicative of acetabular retroversion |
| url | http://www.sciencedirect.com/science/article/pii/S2352344119301682 |
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