الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The most commonly reconstructed ligament in the knee is the ACL. Clinical evaluation of ACL reconstructions can be difficult, and MR imaging plays an important role in evaluating the integrity of the ACL graft, as well as in diagnosing complications associated with ACL reconstruction. Ligamentous repair and reconstruction procedures of the knee are increasing in prevalence as are MR imaging examinations of patients after such procedures. Therefore, it is important to be able to recognize the normal MR imaging appearance of the knee after the more common procedures, as well as complications associated with such procedures. The most common indications for evaluating ACL reconstructions with MR imaging include: Failure of ACL reconstruction to stabilize the knee, with imaging used to evaluate for tunnel placement and integrity of the graft. Postoperative re-injury to the knee, with imaging performed to assess ACL graft integrity and meniscal and chondral status. Postoperative stiffness especially extension loss (flexion contracture), with imaging used to look for impingement and arthrofibrosis.Preparation for revision of a failed ACL reconstruction, with imaging used to evaluate for meniscal and chondral integrity, tunnel placement, and tunnel size, all of which aid the surgeon in preoperative planning. With the introduction of MRI, a step towards obtaining radiological base line data, nearly equivalent to arthroscopic findings. This study aimed to assess the role of magnetic resonance imaging in the evaluation of reconstructed and repaired cruciate ligaments of the knee joint and included forty patients with patellar tendon anterior cruciate ligament reconstruction. All patients were subjected to the following: History taking. MRI study of the knee. The use of MRI helped for accurate evaluation of reconstructed and repaired cruciate ligaments as compared to the conventional radiological study. All the patients are sub-divided into two groups: group I (asymptomatic patients): 19cases group II (symptomatic patients): 21 cases In this study, the MRI findings of the two groups were addressed including graft integrity and bone tunnel placement. MR imaging is ideally suited for the evaluation of pain or instability in the post-operative anterior cruciate ligament patient. Graft integrity and position can be determined, and clinically challenging diagnoses such as graft ganglia or hardware failure are readily diagnosed with MRI. With the increasing prevalence of arthroscopic repair of the anterior cruciate ligament, the importance of MRI in the evaluation of this patient population will only increase.