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Case: We report a case of recurrent acute arthritis and restricted range of motion in the knee joint, with magnetic resonance imaging subsequently detecting a nodular lesion within the lateral meniscus. Knee arthroscopy and histology revealed that the lesion was intrameniscal gouty tophi. After arthroscopic synovectomy and excision of the tophi, the symptoms resolved and the patient remained symptom-free at two years of follow-up., Conclusion: Surgeons should be aware of the presence of such pathology and consider arthroscopic surgery if the mechanical symptoms persist.

Case: We report a rare case of early postoperative migration of an EndoButton following anatomic double-bundle anterior cruciate ligament reconstruction with use of the EndoButton for femoral fixation. Although secure fixation of the EndoButton was confirmed during the operation, one-week postoperative radiographs revealed an intratunnel displacement of the posterolateral EndoButton. We performed a reoperation and refixed the EndoButton to the surface of the femoral cortex; we also hooked and tied both ends of the sutures to make a knot in order to prevent remigration., Conclusion: Orthopaedic surgeons should be aware that EndoButton displacement and migration could arise at an early postoperative stage.