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Metatarsus Adductus Association With Fifth Metatarsal Fractures: Radiographic Analysis.

Caitlin Curtis Crocker1, Delaney Lagrew1, Chris Lamprecht2

  • 1Department of Orthopaedics and Sports Medicine, University of Florida, Gainesville, FL, USA.

Foot & Ankle Orthopaedics
|June 30, 2026
PubMed
Summary
This summary is machine-generated.

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Metatarsus adductus, a forefoot deformity, is frequently present in patients with proximal fifth metatarsal fractures. This association is stronger with more proximal fracture locations, particularly zone 3 fractures.

Area of Science:

  • Orthopedics
  • Podiatry
  • Foot and Ankle Surgery

Background:

  • Metatarsus adductus is a common congenital forefoot deformity.
  • It is often associated with other foot pathologies, including proximal fifth metatarsal fractures.

Purpose of the Study:

  • To investigate the incidence and severity of metatarsus adductus in patients with proximal fifth metatarsal fractures.
  • To determine if there is a correlation between metatarsus adductus and the location of fifth metatarsal fractures.

Main Methods:

  • Retrospective analysis of 49 patients treated for fifth metatarsal fractures between 2022 and 2024.
  • Radiographic measurements included metatarsus adductus angle (MAA), lateral Meary angle, fracture zone, and foot alignment.

Main Results:

Keywords:
cavusfifth metatarsal fracturesmetatarsus adductus

Related Experiment Videos

  • A significant association was found between increasing metatarsus adductus severity and more proximal diaphyseal fracture locations (P < .001).
  • Average MAA was 14.2° for zone 1, 19.9° for zone 2, and 26.8° for zone 3 fractures.
  • Metatarsus adductus was common, while cavovarus deformity was infrequent.

Conclusions:

  • Metatarsus adductus is prevalent in patients with fifth metatarsal fractures.
  • Assessment for metatarsus adductus is recommended, especially for zone 2 and 3 fractures.
  • Further research in larger cohorts is needed to validate these findings.