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Year : 2021  |  Volume : 41  |  Issue : 6  |  Page : 315-318

A rare case of symptomatic nonunion of avulsion fracture of the posterior medial meniscus root with concomitant posterior cruciate ligament injury

Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University; Department of Orthopedics, Taipei Medical University Hospital, Taipei, Taiwan

Correspondence Address:
Dr. Jia-Lin Wu
250 Wuxing Street, Xinyi District, Taipei City
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmedsci.jmedsci_329_20

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The menisci are the essential structures of the knee joint because they disperse body weight and reduce friction during the movement. An avulsion fracture of the posterior medial meniscus root, also known as meniscal ossicles, can lead to meniscal extrusion. Consequently, the medial meniscus loses its ability to absorb hoop stress. One patient presented with nonunion posterior root avulsion fracture of the medial meniscus concomitant with posterior cruciate ligament (PCL) injury. The patient underwent arthroscopic suture repair through the placement of a tibial tunnel 1 year after injury. The fracture united well, and complete recovery was achieved at the 2-year follow-up. To the best of our knowledge, this is the first report describing a posterior root avulsion fracture of the medial meniscus with concomitant PCL avulsion fracture.

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