title: Computer simulation of stress distribution in the metatarsals at different inversion landing angles using the finite element method.
abstract: Metatarsal fracture is one of the most common foot injuries, particularly in athletes and soldiers, and is often associated with landing in inversion. An improved understanding of deformation of the metatarsals under inversion landing conditions is essential in the diagnosis and prevention of metatarsal injuries. In this work, a detailed three-dimensional (3D) finite element foot model was developed to investigate the effect of inversion positions on stress distribution and concentration within the metatarsals. The predicted plantar pressure distribution showed good agreement with data from controlled biomechanical tests. The deformation and stresses of the metatarsals during landing at different inversion angles (normal landing, 10 degree inversion and 20 degree inversion angles) were comparatively studied. The results showed that in the lateral metatarsals stress increased while in the medial metatarsals stress decreased with the angle of inversion. The peak stress point was found to be near the proximal part of the fifth metatarsal, which corresponds with reported clinical observations of metatarsal injuries.
authors.affiliation: School of Engineering, Liverpool John Moores University, Liverpool L3 3AF, UK.
authors.forename: Y D
authors.initials: YD
authors.lastname: Gu
authors.forename: X J
authors.initials: XJ
authors.lastname: Ren
authors.forename: J S
authors.initials: JS
authors.lastname: Li
authors.forename: M J
authors.initials: MJ
authors.lastname: Lake
authors.forename: Q Y
authors.initials: QY
authors.lastname: Zhang
authors.forename: Y J
authors.initials: YJ
authors.lastname: Zeng
mesh_terms: D000328:Adult; D003198:Computer Simulation; D020342:Finite Element Analysis; D018409:Foot Injuries / Q000503:physiopathology*; D015775:Fractures, Stress / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008682:Metatarsal Bones / Q000293:injuries / Q000502:physiology*; D008954:Models, Biological; D009068:Movement / Q000502:physiology; D013314:Stress, Mechanical; D016474:Weight-Bearing / Q000502:physiology; D014947:Wounds and Injuries
references.citation: J Biomech. 2006;39(13):2363-70
references.pmid: 16197952
references.citation: J Bone Joint Surg Br. 1985 Nov;67(5):732-5
references.pmid: 4055871
references.citation: Am J Sports Med. 1979 Mar-Apr;7(2):95-101
references.pmid: 434301
references.citation: J Biomech. 2007;40(13):2975-81
references.pmid: 17433335
references.citation: Clin Biomech (Bristol, Avon). 2005 Nov;20(9):892-9
references.pmid: 15996799
references.citation: J Biomech. 2000 May;33(5):513-9
references.pmid: 10708771
references.citation: Clin Biomech (Bristol, Avon). 2001 Aug;16(7):614-20
references.pmid: 11470304
references.citation: Int Orthop. 2009 Feb;33(1):157-63
references.pmid: 18663446
references.citation: Foot Ankle. 1987 Feb;7(4):245-52
references.pmid: 3817669
references.citation: Front Med Biol Eng. 1999;9(3):211-27
references.pmid: 10612561
references.citation: Med Eng Phys. 2003 Jul;25(6):491-9
references.pmid: 12787987
references.citation: Clin Orthop Relat Res. 1995 Jun;(315):238-41
references.pmid: 7634674
references.citation: Gait Posture. 2005 Jun;21(4):432-9
references.pmid: 15886133
references.citation: Clin Biomech (Bristol, Avon). 2008;23 Suppl 1:S31-8
references.pmid: 17964015
references.citation: J Biomech Eng. 2000 Dec;122(6):630-9
references.pmid: 11192385
references.citation: J Biomech. 2005 May;38(5):1045-54
references.pmid: 15797586
references.citation: Am J Sports Med. 2008 Jul;36(7):1367-72
references.pmid: 18443278
references.citation: Clin Biomech (Bristol, Avon). 2004 Aug;19(7):760-2
references.pmid: 15288464
references.citation: Med Sci Sports Exerc. 2004 Mar;36(3):397-404
references.pmid: 15076780
references.citation: J Sports Med Phys Fitness. 1999 Mar;39(1):66-70
references.pmid: 10230172
references.citation: J Bone Joint Surg Am. 1984 Feb;66(2):209-14
references.pmid: 6693447
references.citation: Clin Sports Med. 1997 Apr;16(2):319-38
references.pmid: 9238313
references.citation: Arch Phys Med Rehabil. 2005 Feb;86(2):353-8
references.pmid: 15706568
references.citation: AJR Am J Roentgenol. 2000 Aug;175(2):549-52
references.pmid: 10915714
references.citation: AJR Am J Roentgenol. 1984 Oct;143(4):889-91
references.pmid: 6332501
references.citation: J Biomech. 1997 Jun;30(6):615-20
references.pmid: 9165395
references.citation: Clin Biomech (Bristol, Avon). 2007 Feb;22(2):221-9
references.pmid: 17118500