This study suggests that biomechanical and anatomical changes could apparently cause decreased T2 values 1-2 years postoperatively compared with those preoperatively. Furthermore, preoperative T2 values of the acetabulum can be prognostic factors for the clinical results of RAO.
Introduction A cruciate ganglion is a relatively rare and, their reports are juvenile or adult patients. Clinically symptomatic posterior cruciate ligament (PCL) ganglion in a preschool child treated with sport restriction rather than surgery has never been reported. Case report We report the case of a ganglion cyst of the posterior cruciate ligament in a 5-year-old boy who complained of limping due to right knee pain and extension disturbances. The active range of his knee was −15°for extension and 145°for flexion with terminal pain. Magnetic resonance imaging (MRI) revealed proton density-height and T2WI with fat saturation-high signals in the PCL. Three months of sport activity restriction resolved his symptoms of pain and extension disturbances. Conclusion We report a very rare case of a ganglion of the PCL in a preschool child. If this disease is considered preoperatively, then it can be diagnosed based on characteristic MRI findings, and restricted sport activity could be implemented instead of arthroscopic treatment.
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