title: Intercuneiform instability and the "gap" sign.
abstract: We describe three cases of low-energy injuries to the midfoot resulting in rupture of Lisfranc's ligament without tarsometatarsal injury. Examination of the feet revealed an obvious physical sign only on weightbearing, and all three patients were noted at surgery to have intercuneiform instability in association with a rupture of Lisfranc's ligament.
authors.affiliation: Holy Spirit Hospital, Brisbane, Australia.
authors.forename: M S
authors.initials: MS
authors.lastname: Davies
authors.forename: T S
authors.initials: TS
authors.lastname: Saxby
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005529:Foot Bones / Q000293:injuries / Q000601:surgery; D018409:Foot Injuries / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D008022:Ligaments / Q000293:injuries*; D008297:Male; D012421:Rupture; D013640:Tarsal Joints / Q000293:injuries*; D016474:Weight-Bearing