Patellar Tap / Ballotement Test for intra-articular Swelling in the Knee Joint The Patellar Tap Test is a tool to assess for intra-articular swelling of the knee joint. Being able to assess what kind of swelling you are dealing with, gives you an idea about where the lesion could be located in the knee. With extra-articular swelling (like in prepatellar bursitis or patellar tendonitis) the test will be negative. According to Kastelein et al. (2009) this test has a sensitivity of 83% and a specif

Royal London Hospital Test for Patellar Tendinopathy Maffulli et al. (2017) who previously had proposed the Royal London Hospital Test for Achilles tendinopathy now examined a similar test to diagnose patellar tendinopathy and compared it to manual palpation as well. They found a sensitivity of 88% and specificity of 98% for the royal London hospital test in their small sample of 30 patients. | Physiotutors