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Chevron Osteotomy (for Hallux Valgus)

Overview

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Learn the Chevron Osteotomy (for Hallux Valgus) surgical technique with step by step instructions on OrthOracle. Our e-learning platform contains high resolution images and a certified CME of the Chevron Osteotomy (for Hallux Valgus) surgical procedure.

Patients with symptomatic Hallux Valgus will have pain predominantly from the medial eminence (though of course not all patients are symptomatic). Pain is classically when in shoe-wear (or more specifically tighter fitting shoe-wear). Surgery in the majority of cases is indicated for pain.

With regards to radiographic criteria a mild Hallux Valgus could be said to be a Hallux Valgus angle (the degree of lateral angulation of the hallux relative to the first ray ) of less than 2o degrees and an inter-metatarsal (IM) angle of less than 11 degrees. A moderate deformity displays a Hallux Valgus angle of 20 to 40 degrees and an Inter-metatarsal angle of 11-18 degrees. A severe deformity  a Hallux Valgus angle in excess of 4o degrees and inter-metatarsal angle over 18 degrees.

The Chevron osteotomy is a distal diaphyseal osteotomy which is used for correcting smaller Hallux Valgus deformities and is most successfully used to correct IM angles of less than 15 degrees.

There is debate about the risk of avascular necrosis if the operation is combined with a formal open lateral release. A more limited transarticular lateral soft tissue release can be performed through the medial joint approach and this is usually required to mobilise the osteotomy adequately.

 

 

 

Author:Mark Herron FRCS.

Institution: The Wellington Hospital,  London, UK.

Surgical Steps

Welcome to the surgical steps quiz.

This tests your ability to recall the correct order in which the key steps of an operation should be performed.

There will be various legitimate variations in this order but the quiz doesn’t reflect this.
Your reference point for the steps quiz is just our operative technique.
It’s one starting point in helping you to learn the technique.

  • You simply “drag & drop” the boxes containing the descriptions of the steps into the order you think fits and submit for marking.
  • If you get it correct first time you will be presented your certificate at the end of the quiz.
  • If you need to do more work on the steps you access your marked version by clicking the“re-sit the quiz” button.
  • This will show the steps you ordered correctly highlighted in green and the incorrect ones in red.
  • The correct green steps are fixed and won’t move.
  • The red steps move differently after your initial attempt and swap locations with the step they are dragged and dropped onto .
  • Finally resubmit the quiz once again.
  • The quiz will let you keep going until you get all the steps in the right order.
  • The correct green steps are fixed and won’t move.
  • The red steps move differently after your initial attempt and swap locations with the step they are dragged and dropped onto .
  • Finally resubmit the quiz once again.
  • The quiz will let you keep going until you get all the steps in the right order.

COURSE PROGRESS

Surgical Steps

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