Role of high-resolution ultrasonography in the diagnosis of meniscal and cruciate ligaments injuries of the Knee Joint

High resolution ultrasound shows a high degree of accuracy in the assessment of menisci and cruciates of the knee joint, but magnetic resonance imaging has a higher degree of accuracy compared to US in detection of meniscal and cruciates injury. A total of 35 patients were the subject of our study. They were divided into two groups: Group I, asymptomatic volunteers [control group] Group II, included 30 patients suffered from unilateral or bilateral joint disorders. a] Anterior horn, out of 30 cases, 22 cases were negative by U/S and also proved to be -ve by MRI, with the accuracy, sensitivity and specificity 80%, 25% and 100% respectively, b] Posterior horn out of 30 cases, 18 cases were normal by U/S. Only 12 of them proved to be normal by MRI, with the accuracy and specificity 70%, 75% and 66.69% respectively.The ACL, the accuracy, sensitivity and specificity 83.3%, 75% and 88.8% respectively.The PCL, the accuracy, sensitivity and specificity 96%, 66.6% and 100% respectively. The use of high resolution ultrasound as a preliminary tool for assessment and evaluation whether there is meniscal and cruciates affection or not

Role of computed tomography in diagnosis and clarifying the classification of patello-femoral malalignment

The role of the conventiomal axial radiographs of the patellofemoral joint in assessing patients suffering from peripatellar pain is limited. Therefore Computed Tomography [CT] was used to evaluate 40 patients with persistent patello-femoral pain, and ten asymptomatic volunteers as a control group. Mid patellar transaxial cuts were taken for all of them at 0, 15, 30 and 45 dgress of knee flexion. The congruence angle, the patellar tilt angle and the femoral trochlear angle were obtained from each image. According to the values of these three angles, patients were classified using Merchant's classification of patello-femoral malalignment into: Type I malalignment [patellar subluxation only - 12 cases]. Type II malalignment [patellar subluxation and tilt - 10 cases]. Type III malalignment [patellar tilt only - 13 cases]. The CT has a significant advantage in diagnosing and identifying the different patterns of patello-femoral malalignment particularly when surgical realignment is planned