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HOME > J Trauma Inj > Volume 28(1); 2015 > Article
Natural History of Spontaneous Healing of a Traumatic Radial Tear of the Lateral Meniscus: A Case Report
Jae Ang Sim, Yong Cheol Yoon, Sheen Woo Lee, Beom Koo Lee
Journal of Trauma and Injury 2015;28(1):21-26
DOI: https://doi.org/10.20408/jti.2015.28.1.21
Published online: March 30, 2015
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1Department of Orthopaedics, Gachon University Gil Hospital, Incheon, Korea. bklee@gilhospital.com
2Trauma Center, Gachon University Gil Hospital, Incheon, Korea.
3Department of Radiology, Gachon University Gil Hospital, Incheon, Korea.
Received: 4 October 2014   • Revised: 21 December 2014   • Accepted: 6 January 2015

Complete radial tears of the lateral meniscus are relatively rare. Once torn, the injury can be debilitating due to disruption of the circumferential fibers of the meniscus. We experienced a case of a lateral meniscus with a complete radial tear at the midbody, where the two torn ends were displaced more than 1 cm and could not be approximated during arthroscopy. Thirteen months after surgery, follow-up MRI and second-look arthroscopic findings showed that the complete radial tear has healed spontaneously. However, twenty nine months after the second-look arthroscopy, the patient complained of severe knee pain during exercise. On follow-up MRI, increased sclerosis and newly developed bone marrow edema were observed in the lateral femoral condyle, compared with previous MR images. Finally, we performed meniscal allograft transplantation due to the defective properties of the completely healed lateral meniscus.

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