Tension-band wiring of olecranon fractures - Biomechanical analysis of different fixation techniques

Détails

Ressource 1Télécharger: BIB_94F1717C233C.P001.pdf (1274.60 [Ko])
Etat: Public
Version: Après imprimatur
ID Serval
serval:BIB_94F1717C233C
Type
Mémoire
Sous-type
(Mémoire de) maîtrise (master)
Collection
Publications
Institution
Titre
Tension-band wiring of olecranon fractures - Biomechanical analysis of different fixation techniques
Auteur⸱e⸱s
Suter P.
Directeur⸱rice⸱s
Gautier E.
Détails de l'institution
Université de Lausanne, Faculté de biologie et médecine
Statut éditorial
Acceptée
Date de publication
2012
Langue
anglais
Nombre de pages
31
Résumé
Tension-band wiring is a recognised standard treatment for fixation of olecranon fractures. The classical operation technique is well known and widespread among the orthopaedic surgeons.
Nevertheless complications like K-wire migration or skin perforation and difficult technical as well as anatomical prerequisites require better-adapted operation fixation methods.
In older female patients a cut through of the Kirschner wires with concomitant secondary displacement was observed. We intent to develop a new, better adapted operation technique for olecranon fractures in the old patients, in order to decrease complications and follow-up procedures.
In this study we compare two different K-wire positions: 10 models of the classical AO tension-banding to 10 models with adapted K-wire insertion.
In this group the K-wire passes from the tip of the olecranon to the posterior cortical of the distal fragment of the ulna. We tested maximal failure load, maximal opening angle as well as maximal work to achieve maximal force.
In either technique we were able to determine different variables: a maximal failure load of more than 600N (p = 0.94) for both fixation methods and a maximal opening angle for both techniques of about 10° (p = 0.86). To achieve the maximal force our modified technique required a slightly increased work (p = 0.16).
In this study no statistical significant differences between the two fixation techniques was shown. This leads to the conclusion that the modified version is comparable to the classical operation technique considering the stability, but due to the adaption of the angle in the modified procedure, less lesions of neurovascular structures on the volar side can be expected. To support our findings cadaver studies are needed for further investigations.
Mots-clé
olecranon fracture, tension-band wiring, K-wire, biomechanical testing, cut through
Création de la notice
12/09/2013 13:57
Dernière modification de la notice
20/08/2019 14:57
Données d'usage