Abstract:
OBJECTIVE:To demonstrate the anatomy of the extensor retinaculum (ER) of the wrist using gross anatomical correlation with magnetic resonance (MR) imaging before and after ultrasound-guided tenography in four different positions, emphasizing the morphological appearance of the ER that occurs with dorsiflexion of the wrist to define the nature of extensor tendon impingement in athletes who perform repetitive wrist dorsiflexion. MATERIALS AND METHODS:Institutional policies were followed regarding cadaver use. Ten upper extremities were harvested from fresh cadavers. MR imaging before and after ultrasound-guided tenography of the wrist was performed, followed by gross anatomical correlation. Two radiologists interpreted the MR images and sections by consensus for the anatomical landmarks of the ER, and morphological changes occurring during dorsiflexion of the wrist were analyzed and measured. RESULTS:The ER of the wrist appeared as a band of low signal intensity on T1- and PD-weighted images. Because of its orientation, axial images were best suited to depict the ER anatomy; specifically, localization of the bony landmarks and the septal attachments. On sagittal images, a consistent appearance of the ER was seen: appearing with fusiform morphology in the neutral position, and becoming shortened and thickened at the abutment point where the extensor tendons of the fourth compartment had a curved excursion during dorsiflexion. The width and thickness of the ER in neutral position averaged 13.56 mm and 1.67 mm respectively. In wrist dorsiflexion, the average width and thickness changed to 8.68 mm and 2.15 mm respectively. CONCLUSION:Magnetic resonance imaging is a useful technique to demonstrate the ER of the wrist, the septal attachments, and morphological changes that occur during dorsiflexion of the wrist, which potentially can lead to impingement of the extensor tendons.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Massaki AN,Tan J,Huang BK,Chang EY,Trudell DJ,Resnick DLdoi
10.1007/s00256-013-1739-8subject
Has Abstractpub_date
2013-12-01 00:00:00pages
1727-37issue
12eissn
0364-2348issn
1432-2161journal_volume
42pub_type
杂志文章abstract::We report the case of a 67-year-old male with bilateral proximal tibiofibular synostosis, presenting with unilateral symptoms. The patient complained of pain around the left fibular head, which was attributed to incomplete bone bridging between the proximal tibia and fibula; he underwent proximal fibular head resectio...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-014-1932-4
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to clarify the efficacy of stress radiography (stress X-P), ultrasonography (US), and magnetic resonance (MR) imaging in the detection of the anterior talofibular ligament (ATFL) injury. METHODS:Thirty-four patients with ankle sprain were involved. In all patients, Stress X-P, U...
journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00242128
更新日期:1992-01-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-017-2856-6
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章,已发布勘误
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journal_title:Skeletal radiology
pub_type: 杂志文章,评审
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journal_title:Skeletal radiology
pub_type: 杂志文章,评审
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-009-0706-x
更新日期:2009-09-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00202161
更新日期:1995-10-01 00:00:00
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journal_title:Skeletal radiology
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doi:10.1007/s00256-008-0552-2
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
pub_type: 杂志文章,评审
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更新日期:2014-07-01 00:00:00
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journal_title:Skeletal radiology
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doi:10.1007/s002560050009
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-006-0086-4
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050181
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-010-0934-0
更新日期:2010-11-01 00:00:00