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The purpose was to evaluate which meniscal repair technique for radial tears of the midbody of the lateral meniscus demonstrates the best biomechanical properties. An electronic literature search was conducted using PubMed, EMBASE, CINAHL, and ScienceDirect databases. Biomechanical studies investigating the repair characteristics of radial tears in the midbody of the lateral meniscus were included. After appropriate screening, a total of 54 studies were reviewed in detail (full text), and 6 met inclusion criteria. The most common cause of exclusion was the investigation of longitudinal tears. Only two studies could be meta-analyzed. Stiffness was significantly higher for all-inside compared with inside-out repair techniques ( p  = 0.0009). No significant differences were observed between both suture methods for load to failure ( p  = 0.45). However, both studies used different all-inside devices and suture constructs. No clear conclusions can be drawn from the comparison of both types of repairs for displacement, site of failure, or contact pressure changes. Overall, there are no conclusive data to suggest that inside-out or outside-in suture repair has better load to failure or stiffness, less displacement, or different site of failure compared with all-inside repair. According to biomechanical data, it is under surgeon's preference to elect one repair technique over the other., (Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.)

Treatment options are limited for young, meniscal-deficient patients with pain. This patient population is not age appropriate for total joint replacement, yet the loss of the meniscus leaves them at significant risk for the development of osteoarthritis. One increasingly popular option is the use of allograft meniscal transplantation. However, many questions, both clinical and biomechanical, still surround allograft meniscus transplantation. Clinical questions include risks of disease transmission, patient factors affecting ultimate outcome, optimal graft preservation methods, and surgical technique choice. Biomechanical questions include whether allograft meniscus transplantation can reproduce the functions of the meniscus, the effects of proper sizing and fixation methods on contact mechanics, and the effects of freezing on allograft strength. This article reviews these questions and more current concepts regarding allograft meniscus transplantation.