Patellofemoral Disorders

Patellofemoral Pain Syndrome/Chondromalacia

1. Patellofemoral Grind Test:  The patient is supine with the knee relaxed as the examiner clasps the patella with their thumb and index fingers. The patella is then pressed against the medial and lateral femoral condyles.  A + test is pain and may or may not be associatedwith chondromalacia patellae.    There is very poor correlation between this test and chondromalacia.  One study showed a sensativity of 37%.

Malanga GA, Andrus S, Nadler SF, McLean J. Physical Examination of the Knee: A Review of the Original Test Description and Scientific Validity of Common Orthopedic Tests. Arch Phys Med Rehabil: 84; 592-603.

O’Shea KJ, Murphy KP, Heekin RD, Herzwurm PJ. The Diagnostic Accuracy of History, Physical Examination, and Radiographs in the Evaluation of Traumatic Knee Disorders. Am J Sports Med 1996;24:164-7.

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