Percutaneous fixation of intraarticular joint-depression calcaneal fractures with different screw configurations – a biomechanical human cadaveric analysis.
Purpose: The aim of this study was to assess the biomechanical performance of different screw configurations for fixation of Sanders type II B joint-depression calcaneal fractures. Methods: Fifteen human cadaveric lower limbs were amputated and Sanders II B fractures were simulated. The specimens we...
| Publicado en: | European Journal of Trauma & Emergency Surgery Vol. 48; no. 4; pp. 3305 - 3316 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Aug2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=158431700&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 158431700 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18639933 3C05 jtl: European Journal of Trauma & Emergency Surgery issn: 18639933 maglogo: N pubinfo: dt: Aug2022 vid: 48 iid: 4 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 158431700 155607787 158431700 158431700 10.1007/s00068-022-01901-6 158431700 ppf: 3305 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Percutaneous fixation of intraarticular joint-depression calcaneal fractures with different screw configurations – a biomechanical human cadaveric analysis. aug: au: Ivanov, Stoyan Stefanov, Aleksandar Zderic, Ivan Rodemund, Christian Schepers, Tim Gehweiler, Dominic Dauwe, Jan Pastor, Torsten Makelov, Biser Raykov, Dimitur Richards, Geoff Gueorguiev, Boyko affil: AO Research Institute Davos, Davos, Switzerland sug: subj: Calcaneus Fractures Surgery Fracture Fixation Methods Bone Screws Biomechanics Human Cadaver Female Male Adult Middle Age Aged Aged, 80 and Over Random Assignment Descriptive Statistics Bone Density Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Female Male ab: Purpose: The aim of this study was to assess the biomechanical performance of different screw configurations for fixation of Sanders type II B joint-depression calcaneal fractures. Methods: Fifteen human cadaveric lower limbs were amputated and Sanders II B fractures were simulated. The specimens were randomized to three groups for fixation with different screw configurations. The calcanei in Group 1 were treated with two parallel longitudinal screws, entering superiorly the Achilles tendon insertion, and two screws fixing the intraarticular posterior facet fracture line. In Group 2 two screws entered the tuberosity inferiorly to the Achilles tendon insertion and two transverse screws fixed the posterior facet. In Group 3 two screws were inserted along the bone axis, one transverse screw fixed the posterior facet and one oblique screw was inserted from the posteroplantar part of the tuberosity supporting the posterolateral part of the posterior facet. All specimens were biomechanically tested to failure under progressively increasing cyclic loading. Results: Initial stiffness did not differ significantly between the groups, P = 0.152. Cycles to 2 mm plantar movement were significantly higher in both Group 1 (15,847 ± 5250) and Group 3 (13,323 ± 4363) compared with Group 2 (4875 ± 3480), P ≤ 0.048. No intraarticular displacement was observed in any group during testing. Conclusions: From a biomechanical perspective, posterior facet support by means of buttress or superiorly inserted longitudinal screws results in less plantar movement between the calcaneal tuberosity and the anterior fragments. Inferiorly inserted longitudinal screws are associated with bigger interfragmentary movements. pubtype: Academic Journal doctype: diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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