Investigating the effects of flexor tendon shortening on active range of motion after finger tendon repair.
biomechanics
moment arms
robotic-cadaver testbed
tendon repair surgery
Journal
Anatomical record (Hoboken, N.J. : 2007)
ISSN: 1932-8494
Titre abrégé: Anat Rec (Hoboken)
Pays: United States
ID NLM: 101292775
Informations de publication
Date de publication:
05 2022
05 2022
Historique:
revised:
13
07
2021
received:
08
04
2021
accepted:
15
07
2021
pubmed:
8
9
2021
medline:
13
4
2022
entrez:
7
9
2021
Statut:
ppublish
Résumé
Evaluation of surgical effects is often done using simple cadaver experimentation. This study uses a robotic testbed to estimate the best-case clinical outcomes of flexor tendon shortening during repair surgery on cadaver hands. Nine fresh-frozen cadaver subjects were connected to an extrinsic index finger robotic muscle testbed and measurement system. The flexor digitorum profundus tendons were severed and surgically repaired at different shortening levels. The index finger's extrinsic tendons were robotically actuated using Hill-type muscle models to emulate the muscle force-length relationships. Extensor muscles were then activated to estimate the active range of motion (ROM) of the all-finger joints after surgery. The effects of metacarpophalangeal (MCP) joint extension limits and extensor muscle activation were also investigated. The resulting interphalangeal joint ROM was clinically graded. Active ROM of the finger decreases as tendon shortening increases (
Identifiants
pubmed: 34490721
doi: 10.1002/ar.24763
pmc: PMC8898313
mid: NIHMS1738515
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
1231-1244Subventions
Organisme : NIAMS NIH HHS
ID : R21 AR076269
Pays : United States
Informations de copyright
© 2021 American Association for Anatomy.
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