The biomechanical properties of the hook plate and pull-out suture in mallet finger fractures: a cadaveric study.
| Autor: | Suwannaphisit S; Department of Orthopaedics, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand., Saengsirinavin P; Department of Orthopedics, Police General Hospital, Royal Thai Police Headquarters, Bangkok, Thailand., Panichnantho N; Department of Orthopedics, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand., Kwanyuang A; Division of Biomedical Sciences and Biomedical Engineering, Prince of Songkla University, Songkhla, Thailand., Gonggoon A; Department of Orthopedics, Police General Hospital, Royal Thai Police Headquarters, Bangkok, Thailand., Jaroenporn W; Department of Orthopedics, Police General Hospital, Royal Thai Police Headquarters, Bangkok, Thailand. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of hand surgery, European volume [J Hand Surg Eur Vol] 2024 Apr; Vol. 49 (4), pp. 430-435. Date of Electronic Publication: 2023 Oct 25. |
| DOI: | 10.1177/17531934231205550 |
| Abstrakt: | A total of 32 cadaveric fingers with bony mallet injuries were fixed using either the hook plate or the pull-out suture technique. The purpose of this study was to assess the immediate postoperative biomechanical responses of the fixation techniques under different load conditions. The fingers were cyclically loaded with a force of 7 N for 3500 cycles and until construct failure. The maximum displacements of the hook plate and pull-out sutures were 0.7 mm and 0.6 mm, respectively ( p = 0.556). The stiffnesses of the hook plate and pull-out suture were 1.3 N/mm and 1.1 N/mm, respectively ( p = 0.515). The ultimate loads-to-failure for the hook plate and pull-out suture were 64.4 N (interquartile range [IQR] 37.7-77.7) and 44.5 N (IQR 29.7-63.5), respectively ( p = 0.094). Both fixation techniques were able to withstand immediate postoperative mobilization without any difference in fracture displacement, construct stiffness or maximum load to failure. Competing Interests: Declaration of conflicting interestsThe authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. |
| Databáze: | MEDLINE |
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