Purpose
Multiple methods of ligament reconstruction and tendon interposition (LRTI) or suspension
have been described to prevent first metacarpal subsidence following trapeziectomy.
An abductor pollicis longus (APL) lasso is a newly described technique of suspensionplasty,
which aims to obviate concerns regarding previously described methods. The purpose
of this study was to compare subsidence between the APL lasso and 2 other common methods,
APL sling and flexor carpi radialis LRTI, after trapeziectomy in cadaveric forearms.
Methods
Ten cadaveric forearms were prepared on a custom-made plinth to recreate pinch grip
upon the loading of previously identified muscles. A sequence of procedures was performed,
with radiographs taken after each to assess the subsidence.
Results
The APL lasso was superior to simple trapeziectomy and flexor carpi radialis LRTI
in preventing subsidence.
Conclusions
The APL lasso was superior to simple trapeziectomy and flexor carpi radialis LRTI
in preventing subsidence, and it may be a viable alternative when considering suspension
methods after trapeziectomy.
Clinical relevance
The APL lasso may be considered when trying to prevent subsidence after trapeziectomy.
Key words
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Article info
Publication history
Published online: July 27, 2021
Accepted:
June 16,
2021
Received:
May 2,
2020
Footnotes
No benefits in any form have been received or will be received related directly or indirectly to the subject of this article.
Identification
Copyright
© 2022 by the American Society for Surgery of the Hand. All rights reserved.
