Abstract
Aim of the studyUltrasound examination is widely used in orthopedic diagnostics, however sonographic evaluation of traumatic anterior cruciate ligament insufficiency is still inadequate. Aim of this study is to evaluate diagnostic capability of a new sonographically-guided test for diagnosing complete anterior cruciate ligament insufficiency.Material and methodsIn 47 patients, with suspicion of unilateral anterior cruciate ligament injury (based on magnetic resonance imaging), the sonographically-guided test for anterior instability was performed. The translation of the intercondylar eminence against the patellar tendon was measured in both knees. Afterwards all patients underwent arthroscopy.ResultsIn 37 patients, with arthroscopically confirmed complete anterior cruciate ligament insufficiency, the mean anterior knee translation was 8.3 mm (SD = 2.8) in affected knee vs. 3 mm (SD = 1.1) in uninjured knee (p < 0.001). In 10 patients with no anterior cruciate ligament insufficiency the difference between body sides was not significant (2.6 mm, SD = 1.4 in injured knee vs. 2.5 mm, SD = 1.1 in uninjured joint; p < 0.7753).ConclusionsThe proposed test supports the clinician with fast and non-invasive examination that can facilitate evaluation of anterior knee instability.
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