In meniscectomy, instrument insertion points are routinely placed at the anterior side of the joint level medially and laterally from the patella tendon [1,2]. These insertion points commonly conflict with the location of the defect (e.g., tear) in the menisci, making it difficult to reach the work area especially for defects situated along a large part of the menisci edge (Fig. 1).

In these difficult cases, it is challenging to position a cutter to remove loose parts when using a straight instrument. To solve this problem, precurved instruments have been developed to repair defects in all areas of the menisci. However, there are disadvantages associated with this discrete solution. Since the location and type of defect are not known beforehand, approximately ten different punches must be readily available and undergo traditional standards of cleaning, disassembly, and sterilization even when they are not used. To reduce...

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