Clarke's test

In medicine, Clarke's test (also known as the Osmond-Clarke test or patellar grind test) is a component of knee examination which may be used to test for patellofemoral pain syndrome, chondromalacia patellae, patellofemoral arthritis, or anterior knee pain. It is not a standard part of the knee examination but is used to diagnose anterior knee pain where the history indicates this as the likely pathology. The patient is asked to actively contract the quadriceps muscle while the examiner's hand exerts pressure on the superior pole of the patella, so trying to prevent the proximal movement of the patella. While it can produce some discomfort even in normal people, the reproduction of the symptoms suggest pain of patellofemoral origin.[1]

Not to be confused with Clark's rule.
Clarke's test
PurposeTest for patellofemoral pain syndrome, chondromalacia patellae or patellofemoral arthritis

Evidence for the validity of Clarke's test is limited and some sources claim the test is not clinically useful,[2][3] though it remains prevalent in clinical practice.

See also

References
  1. Porter S. "Tidy's Physiotherapy15: Tidy's Physiotherapy". Elsevier 2013.
  2. Doberstein, S.; Romeyn, R.; Reineke, D. (2008). "The Diagnostic Value of the Clarke Sign in Assessing Chondromalacia Patella". J Athl Train. 43 (2): 190–6. doi:10.4085/1062-6050-43.2.190. PMC 2267328. PMID 18345345.
  3. Nijs, J.; Van Geel, C.; Van der Auwera, C. (2006). "Diagnostic value of five clinical tests in patellofemoral pain syndrome". Manual Therapy. 11 (1): 69–77. doi:10.1016/j.math.2005.04.002. PMID 15950517.
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