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Elson Extensor Tendon Test
Aka: Elson Extensor Tendon Test, Elson's Test
- Anatomy
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
- Indications
- Extensor Tendon Injury evaluation at PIP Joint
- Risk of Central Slip Extensor Tendon Injury and secondary Boutonniere Deformity
- Exam: Elson Test
- Technique
- Patient rests their hand on table with involved finger flexed 90 degrees at the PIP Joint over the table edge
- Patient attempts to extend finger at PIP joint against resistance
- Interpretation
- Positive if weak extension against resistance (Central Slip Extensor Tendon Injury)
- Also observe if distal phalanx hyperextends while attempting PIP extension (due to lateral band tension)
- Resources
- Extensor Tendon Injuries: PIP and Elson's Test
- http://lacerationrepair.com/soft-tissue/extensor-tendon-injuries-pip-elsons-test/
- ALIEM
- https://www.aliem.com/2013/07/elsons-test/
- Youtube Video (Univ. Michigan Family Medicine)
- https://www.youtube.com/watch?v=wyHSKgAZ1eA
- References
- Spangler and Lin (2016) EM:Rap 16(1): 18
- Elson (1986) J Bone Joint Surg Br 68(2):229-31 +PMID:3958008 [PubMed]
