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  • Title: Acute torn meniscus combined with acute cruciate ligament injury. Second look arthroscopy after 3-month conservative treatment.
    Author: Ihara H, Miwa M, Takayanagi K, Nakayama A.
    Journal: Clin Orthop Relat Res; 1994 Oct; (307):146-54. PubMed ID: 7924027.
    Abstract:
    The purpose of this study was to evaluate arthroscopically the natural healing of an acute torn meniscus combined with an acute cruciate ligament injury treated nonoperatively. There were 30 lateral and 10 medial meniscus tears associated with 25 acute anterior cruciate ligament and 7 posterior cruciate ligament injuries in 32 patients. There was more than 1 tear on some menisci for a total of 51 tear sites. Injuries to the menisci and ligaments were allowed to heal without surgery, but were given protective mobilization immediately in order to stimulate stress oriented healing of injured collagen fibers and promote circulation of synovial fluid to the meniscus and ligament. A Kyuro knee brace with a coil spring traction system was used to add adequate but not excessive stress to the associated injured cruciate ligament. All knees were examined and arthroscoped before and after a 3-month treatment period. Results indicated that 69% of the lateral menisci healed completely and 18% healed partially, whereas 58% of the medial menisci healed completely and none healed partially. Twenty of 25 anterior cruciate ligaments and 3 of 7 posterior cruciate ligaments healed satisfactorily. This study indicated that acute tears of the meniscus, even when they occur in association with a cruciate ligament injury, can heal morphologically with nonsurgical treatment.
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