The Leeds Enthesitis Index (LEI)
The Leeds enthesitis index (LEI) is a tool for measuring the activity of enthesitis in psoriatic arthritis. Enthesitis is a key feature of this disease, and a target for treatment. Almost all new pharmaceuticals tested for psoriatic arthritis are tested against this metric, in addition to others
The Leeds Enthesitis Index (LEI) measures the severity and activity of enthesitis, inflammation at the attachment of ligaments and tendons to bone. It is a simple tool requiring the clinical assessor to elicit tenderness at 6 enthesitis sites: both lateral epicondyles of the humerus, both medial condyles of the femur, and the Achilles tendon insertions using a simple scoring system to obtain the score.
Commercial Licences:
If you are interested in using the Leeds Enthesitis Index (LEI) for commercial purposes, including clinical, organisational, or consultancy applications, please get in touch to discuss licensing options. We offer licence agreements to suit different commercial needs.
📩 Contact us at enquiries@licensing.leeds.ac.uk to begin the conversation about commercial licensing.
Academic/Research Licences (available to order):
The Leeds Enthesitis Index (LEI) was originally developed for UK/English. It is available for academic and research purposes under the following terms:
• Original UK/English version: Free of charge for academic/research use only (i.e. strictly non-commercial purposes).
• Approval Process: All licence requests are subject to review and approval.
• Eligibility: Academic/research licences are only granted to individuals affiliated with a university or recognised research institution.
• Email Requirement: Requests must be submitted using an academic email address (either your own or your supervisor’s).
Available translations:
Argentina/Spanish
Brazil/Portuguese
Chile/Spanish
China/Simplified Chinese
Colombia/Spanish
Japan/Japanese
Mexico/Spanish
Puerto Rico/Spanish
South Korea/Korean
Taiwan/Traditional Chinese
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expand_more library_books References (2)
- Paul J Healy, Philip S Helliwell , Measuring clinical enthesitis in psoriatic arthritis: assessment of existing measures and development of an instrument specific to psoriatic arthritis
- Clare Groves . Muthusamy Chandramohan . Ne Siang Chew . Tariq Aslam . Philip S. Helliwell , Clinical Examination, Ultrasound and MRI Imaging of The Painful Elbow in Psoriatic Arthritis and Rheumatoid Arthritis: Which is Better, Ultrasound or MR, for Imaging Enthesitis?
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expand_more cloud_download Supporting documents (1)Product brochureThe Leeds Enthesitis Index (LEI).pdfAdditional files may be available once you've completed the transaction for this product. If you've already done so, please log into your account and visit My account / Downloads section to view them.