BMJ Case Reports 2017; doi:10.1136/bcr-2017-219834

Compensating for loss: running on one tibialis anterior

  1. Olusegun Aiyenuro1
  1. 1 Department of Trauma and Orthopaedics, Royal Surrey County Hospital NHS Foundation Trust, Guildford, UK
  2. 2 Brighton and Sussex Medical School, Brighton, UK
  3. 3 Department of Trauma and Orthopaedics, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
  1. Correspondence to Richard AC Dimock, richard.dimock{at}
  • Accepted 7 April 2017
  • Published 3 May 2017


Rupture of the tibialis anterior (TA) tendon is rare and may be either traumatic or spontaneous. TA is the main ankle dorsiflexor, providing 80% of the power, as well as contributing to inversion of the foot. We describe a case of an 84-year-old male who was incidentally diagnosed with absence of his left TA at age 46 while preparing for his first-ever marathon. There was no history of specific injury to this tendon. He subsequently went on to lead an active sporting life, completing over 20 marathons with a best time of 3 hours 12 min.


  • Contributors RACD: main author. EJCD: c

    oauthor and acquisition of data. OA: s

    enior author and reviewer.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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