Clinically Relevant Anatomy
The test has to be performed as followed:
- 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 internelly 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.
To see video, go to Blip
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.
Recent Related Research (from Pubmed)
- [Healing of osteochondral defects in canine knee with avocado/soybean unsaponifiables: a morphometric comparative analysis].
- Who is the ideal candidate for autologous chondrocyte implantation?
- A prospective, randomised comparison of autologous chondrocyte implantation versus mosaicplasty for osteochondral defects in the knee.
- Management of chondral injuries of the knee by osteochondral autogenous transfer (mosaicplasty).
- Characterizing osteochondral lesions by magnetic resonance imaging.
Sugested keywords: osteochondritis dissecans; wilson`s test