[Value of the radiologic Lachman test in evaluating long-term results of operations on the anterior cruciate ligament].

A retrospective study including a 5-years follow-up of 114 patients, that had been operated because of a lesion of the anterior cruciate ligament, used the parameters of the IKDC-score, in 110 cases a radiological Lachman-test was performed simultaneously. A comparison of patient's subjective estimate, of clinical testings, using the pivot shift-test and measurement of anterior instability with the KT-1000 knee arthrometer, and of radiological Lachman-test shows correlations between the 3 first parameters with mostly good results, but poor results in radiological Lachman-test. Mistakes in using the KT-1000 arthrometer may be a reason for this, or a much higher sensitivity of the radiological method, which seems to make it problematic analyzing the radiological measures within the same limits as the arthrometric measures especially in view of demanded scaling scores.