Mobility assessment of the supraspinatus in a porcine cadaver model using a sensor-enhanced, arthroscopic grasper

• Verfasst von: Porschke, Felix [VerfasserIn]
• Verfasst von: Lücke, Christoph [VerfasserIn]
• Verfasst von: Gühring, Thorsten [VerfasserIn]
• Verfasst von: Weiß, Christel [VerfasserIn]
• Verfasst von: Studier-Fischer, Stefan [VerfasserIn]
• Verfasst von: Grützner, Paul Alfred [VerfasserIn]
• Verfasst von: Schnetzke, Marc [VerfasserIn]
• Titel: Mobility assessment of the supraspinatus in a porcine cadaver model using a sensor-enhanced, arthroscopic grasper
• Verf.angabe: Felix Porschke, Christoph Luecke, Thorsten Guehring, Christel Weiss, Stefan Studier-Fischer, Paul Alfred Gruetzner, and Marc Schnetzke
• Jahr: 2021
• Umfang: 10 S.
• Fussnoten: Published online 13 August 2020 ; Gesehen am 11.10.2021
• Titel Quelle: Enthalten in: Annals of biomedical engineering
• Ort Quelle: Dordrecht [u.a.] : Springer Science + Business Media B.V, 1972
• Jahr Quelle: 2021
• Band/Heft Quelle: 49(2021), 2, Seite 617-626
• ISSN Quelle: 1573-9686
• DOI: doi:10.1007/s10439-020-02572-3
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1773272276
• K10plus-PPN:
  Universitätsbibliothek
• Lokale URL UB: Zum Volltext

Abstract

Tendon mobility is highly relevant in rotator cuff surgery. Objective data about rotator cuff mobility is rare. Tendon mobility still needs to be evaluated subjectively by the surgeon. This study aims to establish a porcine animal model for mobility analysis of the supraspinatus. In this context, we introduce a sensor-enhanced, arthroscopic grasper (SEAG) suitable for objective intraoperative measurements of tendon mobility in clinical praxis. Tendon mobility of 15 fresh porcine cadaver shoulders with artificial rotator cuff tears was evaluated using the SEAG. Mobility characteristics (load-displacement curves, maximum load, stiffness) were studied and inter- and intraobserver agreement (intraclass correlation coefficient (ICC)) were tested. Factors with a potential adverse effect (plastic deformation and rigor mortis) were also evaluated. All shoulders showed characteristic reproducible load-displacement curves with a nonlinear part at the start, followed by a linear part. Mean maximum load was 28.6 N ± 12.5. Mean stiffness was 6.0 N/mm ± 2.6. We found substantial interobserver agreement (ICC 0.672) and nearly perfect intraobserver agreement (0.944) for maximum load measurement. Inter- (0.021) and intraobserver (0.774) agreement for stiffness was lower. Plastic deformation and rigor mortis were excluded. The animal model demonstrates reliable and in vivo-like measurements of tendon mobility. The SEAG is a reliable tool for tendon mobility assessment.