Wilson's Test
Original Editors - Kim Presiaux as part of the Vrije Universiteit Brussel's Evidence-based Practice project.
Top Contributors - Didzis Rozenbergs, Kim Presiaux, Admin, Essam Ahmed, WikiSysop, Kim Jackson, Evan Thomas, Uchechukwu Chukwuemeka, Claire Knott and Wanda van Niekerk
Definition/Description
The Wilson’s Test is a test used to detect the presence of Osteochondritis dissecans of the knee. [1]
Clinically Relevant Anatomy
Technique
The test has to be performed as follows:[1]
- Ask the patient to sit on a table with his legs dangling over the edge.
- Bend the patient’s knee so that it is flexed at a 90° angle.
- Grasp the patient’s foot and bring the tibia in internally rotation.
- Instruct the patient to extend his leg until he/she feels pain.
The test is positive when the patient reports pain in the knee about 30° from full extension and when by rotating the foot back (externally rotation of the tibia) in it’s normal position the pain disappears.[1][3]
Key Research
So far no studies have been done about the validity and the reliability of this test.
Clinical Bottom Line
Make sure the patient gradually extends his leg during the test, instead of thrusting it out quickly.
References
- ↑ 1.0 1.1 1.2 Conrad, J. M., & Stanitski, C. L. (2003). Osteochondritis dissecans: Wilson’s sign revisited. The American Journal of Sports Medicine, 31(5), 777–778. https://doi.org/10.1177/03635465030310052301
- ↑ 3D Knee Joint
- ↑ Wilson, J. N. (1967). A diagnostic sign in osteochondritis DISSECANS OF THE KNEE. The Journal of Bone and Joint Surgery. American Volume, 49(3), 477–480. https://doi.org/10.2106/00004623-196749030-00006
- ↑ Wilson test