Volume 5 Supplement 1

3rd Congress of the International Foot and Ankle Biomechanics Community

Open Access

Plantar pressures and relative metatarsal lengths in older people with and without forefoot pain

  • Hylton B Menz1Email author,
  • Mohammad R Fotoohabadi1,
  • Shannon E Munteanu1, 2,
  • Gerard V Zammit1, 2 and
  • Mark F Gilheany1
Journal of Foot and Ankle Research20125(Suppl 1):P16

https://doi.org/10.1186/1757-1146-5-S1-P16

Published: 10 April 2012

Background

It has been suggested that plantar forefoot pain (‘metatarsalgia’) may be caused by the presence of abnormally long lesser metatarsals leading to excessive loading of the metatarsal heads when walking. However, evidence to support this proposed mechanism is limited. Therefore, the objective of this study was to determine whether plantar pressures during gait and the relative lengths of the lesser metatarsals differ between older people with and without plantar forefoot pain.

Materials and methods

Dynamic plantar pressure assessment during walking was undertaken using the Tekscan MatScan® system in 118 community-dwelling older people (44 males and 74 females, mean age 74.0 years, standard deviation [SD] 5.9), 43 (36%) of whom reported current or previous plantar forefoot pain. Seven individual “masks” were constructed to determine peak pressures under the hallux, the lesser toes, metatarsal head 1, metatarsal head 2, metatarsal heads 3 to 5, the midfoot and the heel (see Figure 1). The relative lengths of metatarsals 1 to 5 were determined from weightbearing dorsoplantar x-rays using the Maestro [1] and Coughlin [2] techniques.
Figure 1

Mask template used for plantar pressure analysis.

Results

There were no differences between the groups for age, bodyweight or walking speed. Participants with current or previous plantar forefoot pain exhibited significantly greater peak plantar pressure under metatarsal heads 3 to 5 (1.93 [SD 0.41] versus 1.74 [0.48] kg/cm2, p=0.032; Cohen’s d = 0.42 - medium effect). However, there were no differences in relative metatarsal lengths between the groups.

Conclusions

Older people with current or previous forefoot pain display greater peak plantar pressures under the lateral metatarsal heads when walking, but do not exhibit relatively longer lesser metatarsals. Other factors may be responsible for the observed pressure increase, such as reduced range of motion of the metatarsophalangeal joints and increased stiffness of plantar soft tissues.

Authors’ Affiliations

(1)
Musculoskeletal Research Centre, La Trobe University
(2)
Department of Podiatry, La Trobe University

References

  1. Maestro M, Besse JL, Ragusa M, Bertonnaud E: Forefoot morphotype study and planning method for forefoot osteotomy. Foot Ankle Clin. 2003, 8: 695-710. 10.1016/S1083-7515(03)00148-7.View ArticlePubMedGoogle Scholar
  2. Coughlin MJ: Crossover second toe deformity. Foot Ankle. 1987, 8: 29-39.View ArticlePubMedGoogle Scholar

Copyright

© Menz et al; licensee BioMed Central Ltd. 2012

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Advertisement