Piano Key Sign: Difference between revisions
(Created page with "{{subst:New Page}}") |
No edit summary |
||
| Line 4: | Line 4: | ||
'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | ||
</div> | </div> | ||
== | == Purpose == | ||
The Piano-Key Sign test is a test carried out for the clinical assessment of the wrist.<ref name=":0">Vezeridis PS, Yoshioka H, Han R, Blazar P. Ulnar-sided wrist pain. Part I: anatomy and physical examination. Skeletal radiology. 2010 Aug;39(8):733-45.</ref> It is used as an indicator for distal radio-ulnar joint instability and tears of the triangular fibrocartilage complex of the wrist.<ref name=":0" /> | |||
== | == Technique == | ||
In the Piano-key Sign Test, the wrist is supported in pronation by the examiner and force is applied to the head of ulnar. | |||
== | === Positive Result === | ||
The test is positive if the ulnar head goes back to its anatomic position after the removal of the force applied to the ulnar head.<ref name=":1">American Society for Surgery of the Hand. The hand: examination and diagnosis. Churchill Livingstone; 1990.</ref> This bears resemblance with when a piano key springs up after the force from a finger is removed from the key, hence, the name "piano-key" sign.<ref name=":1" /> This instability and pain are judged relative to the contralateral wrist. <ref>Duke Orthopaedics: Wheeless’ Textbook of Orthopaedics Website. Avaliable at: https://www.wheelessonline.com/muscles-tendons/tfcc-examination/. Accessed February 10, 2021.</ref> | |||
=== Negative Result === | |||
No instability or movement observed on removal of pressure on the ulnar head. | |||
== Instructional Video == | |||
== Sensitivity/Specificity == | |||
The Piano-key Sign Test has a specificity of 0.96 and a sensitivity of 0.59. <ref>Lindau T, Adlercreutz C, Aspenberg P. Peripheral tears of the triangular fibrocartilage complex cause distal radioulnar joint instability after distal radial fractures. The Journal of hand surgery. 2000 May 1;25(3):464-8.</ref> | |||
== Conclusion == | |||
== Resources == | == Resources == | ||
| Line 21: | Line 34: | ||
<references /> | <references /> | ||
[[Category:Special Tests]] | |||
Revision as of 14:53, 10 February 2021
Original Editor - User Name
Top Contributors - Joseph Ayotunde Aderonmu, Wendy Snyders and Chelsea Mclene
Purpose[edit | edit source]
The Piano-Key Sign test is a test carried out for the clinical assessment of the wrist.[1] It is used as an indicator for distal radio-ulnar joint instability and tears of the triangular fibrocartilage complex of the wrist.[1]
Technique[edit | edit source]
In the Piano-key Sign Test, the wrist is supported in pronation by the examiner and force is applied to the head of ulnar.
Positive Result[edit | edit source]
The test is positive if the ulnar head goes back to its anatomic position after the removal of the force applied to the ulnar head.[2] This bears resemblance with when a piano key springs up after the force from a finger is removed from the key, hence, the name "piano-key" sign.[2] This instability and pain are judged relative to the contralateral wrist. [3]
Negative Result[edit | edit source]
No instability or movement observed on removal of pressure on the ulnar head.
Instructional Video[edit | edit source]
Sensitivity/Specificity[edit | edit source]
The Piano-key Sign Test has a specificity of 0.96 and a sensitivity of 0.59. [4]
Conclusion[edit | edit source]
Resources[edit | edit source]
- bulleted list
- x
or
- numbered list
- x
References[edit | edit source]
- ↑ 1.0 1.1 Vezeridis PS, Yoshioka H, Han R, Blazar P. Ulnar-sided wrist pain. Part I: anatomy and physical examination. Skeletal radiology. 2010 Aug;39(8):733-45.
- ↑ 2.0 2.1 American Society for Surgery of the Hand. The hand: examination and diagnosis. Churchill Livingstone; 1990.
- ↑ Duke Orthopaedics: Wheeless’ Textbook of Orthopaedics Website. Avaliable at: https://www.wheelessonline.com/muscles-tendons/tfcc-examination/. Accessed February 10, 2021.
- ↑ Lindau T, Adlercreutz C, Aspenberg P. Peripheral tears of the triangular fibrocartilage complex cause distal radioulnar joint instability after distal radial fractures. The Journal of hand surgery. 2000 May 1;25(3):464-8.
