- Acute knee injuries. Brukner & Khan’s Clinical Sports Medicine (5th ed, online). McGraw-Hill Medical. csm.mhmedical.com, published 2017
- Knee ligament injuries. PatientPlus. patient.info/patientplus, last checked 15 February 2017
- Anterior cruciate ligament injury. Summary. BMJ Best Practice. bestpractice.bmj.com, last reviewed February 2018
- Anterior cruciate ligament injury. Medscape. emedicine.medscape.com, updated 16 June 2016
- Anterior cruciate ligament (ACL) injuries. OrthoInfo. American Academy of Orthopaedic Surgeons. orthoinfo.aaos.org, last reviewed March 2014
- Sprains and strains. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised March 2016
- Knee pain – assessment. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised August 2017
Reviewed by Pippa Coulter, Freelance Health Editor, April 2018
Expert reviewer Elisabeth Morgans, Bupa Physiotherapist
Next review due April 2021
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