Horse Flexion Test Welfare Controversy

Welfare and validity concerns surrounding the use of flexion tests in equine pre-purchase examination.

Key Facts

Flexion tests compress and stress limb joints to exacerbate subtle lameness for pre-purchase assessment
The clinical validity of flexion tests is controversial, with positive tests in soundly working horses common
Extended, aggressive flexion causes documented cartilage stress and post-test pain in horses
The BEVA has issued guidance questioning routine flexion test use in pre-purchase examination
Positive flexion tests lead to frequent sales failures and welfare outcomes that may not be justified
Alternative diagnostic approaches including exercise evaluation and imaging provide more objective assessment

Welfare Considerations

Flexion test welfare controversy reflects broader tensions in equine veterinary medicine between established practices and emerging evidence. The procedure involves deliberately applying joint stress that causes documented pain and may exacerbate underlying pathology, with clinical utility that is increasingly questioned by systematic evidence. The welfare cost of false positive flexion results - horses that fail pre-purchase examination on the basis of tests that many sound, working horses would also fail - includes potential sale failure and unnecessary treatment. A welfare-informed approach to pre-purchase examination questions whether the diagnostic contribution of flexion tests justifies their welfare cost when alternative assessment methods are available.

What You Can Do

Discuss the evidence for and against flexion tests with your vet before pre-purchase examination
Ask for objective lameness quantification using sensors or gait analysis alongside flexion tests
Request imaging for joints with positive flexion responses before making purchase decisions
Support research into validated alternative pre-purchase lameness assessment approaches
Advocate for evidence-based pre-purchase examination protocols in veterinary professional guidelines
Consider the welfare cost of flexion tests when evaluating pre-purchase examination proposals