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Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_13 | Pages 5 - 5
17 Jun 2024
Aamir J Caldwell R Karthikappallil D Tanaka H Elbannan M Mason L
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Background

Lisfranc fracture dislocations are uncommon injuries, which frequently require surgical intervention. Currently, there is varying evidence on the diagnostic utility of plain radiographs (XR) and CT in identifying Lisfranc injuries and concomitant fractures. Our aim was to identify the utility of XR as compared to CT, with the nul hypothesis that there was no difference in fracture identification.

Methods

A retrospective assessment of patients who had sustained a Lisfranc injury between 2013 and 2022 across two trauma centres within the United Kingdom who underwent surgery. Pre-operative XR and CT images were reviewed independently by 2 reviewers to identify the presence of associated fractures.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_12 | Pages 8 - 8
10 Jun 2024
Airey G Aamir J Chapman J Tanaka H Elbannan M Singh A Mangwani J Kyaw H Jeyaseelan L Mason L
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Background

Research on midfoot injuries have primarily concentrated on the central column and the Lisfranc ligament without amassing evidence on lateral column injuries. Lateral column injuries have historically been treated with Kirschner wire fixation when encountered.

Objective

Our aim in this study was to analyse lateral column injuries to the midfoot, their method of treatment and the radiological lateral column outcomes. Our nul hypothesis being that fixation is required to obtain and maintain lateral column alignment.


Bone & Joint Research
Vol. 1, Issue 6 | Pages 99 - 103
1 Jun 2012
Mason LW Tanaka H

Introduction

The aetiology of hallux valgus is almost certainly multifactoral. The biomechanics of the first ray is a common factor to most. There is very little literature examining the anatomy of the proximal metatarsal articular surface and its relationship to hallux valgus deformity.

Methods

We examined 42 feet from 23 specimens in this anatomical dissection study.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXII | Pages 25 - 25
1 May 2012
Mason L Tanaka H Hariharan K
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The aetiology of hallux valgus is well published and largely debated. Hypermobility at the TMTJ was initially described by Morton, but it was not till Lapidus that its association with hallux valgus was hypothesized. However, little has been published on the anatomy of the tarsometatarsal joint. Our aim was to determine whether there was an anatomical basis for the coronal hypermobility in hallux valgus.

Method

Anatomical dissection was completed on 42 feet from 23 bodies. Presence of hallux valgus was noted (displacement of sesamoids). Measurements and photographs were taken of the first tarsometatarsal joint and all differences noted.

Observations

The TMTJ articular morphology is variable. There were 3 separate subtypes identified of the metatarsal articular surface.