Skip to content

Extensor digitorum lesions

Contents

Definition

  • Tendinopathy is thought to be an adaptive response of the tendon to repetitive stress and/or trauma and may progress through stages of increasing severity. It can be considered in 3 stages 1
    • Reactive tendinopathy
      • Response to rapid increase in loading or from direct trauma
      • Leads to thickening of the tendon and increases stiffness
    • Tendon disrepair
      • A result of prolonged excessive loading
      • May lead to increase in vascularity and neuronal ingrowth
    • Degenerative tendinopathy
      • Chronic overloading leading to collagen tissue becoming disorganized which may lead to partial tears and ruptures (typically in elderly)
    • The diagnosis may often be a result of misinterpretation where the lateral epicondyliopathy is really at fault

 

Causes

  • Frequently damaged in hand trauma2

 

Examination

  • Resisted extension of fingers – painful and possibly weak
    • To rule out lateral epicondyliopathy the test should be held with the fingers actively flexed – this test should be negative

 

Occurrence

  • Rare

References

  1. https://pubmed.ncbi.nlm.nih.gov/18812414/
  2. https://pubmed.ncbi.nlm.nih.gov/24953717/