Arthroscopic Management for the Unstable Inferior Leaf of the Lateral Meniscus Anterior Horn and Associated Cysts through a Direct Inframeniscal Portal: A Retrospective Study

Figure 2

Meniscectomy procedure through the direct inframeniscal portal. (a) A spinal needle was inserted into the interval between the anterior horn and tibial plateau, or into the tear if it extended to the capsule, 1 cm lateral to the patellar tendon. (b), (c) A 5 mm horizontal incision was made by a sharp scalpel (black arrow) and penetrated the capsule just beneath the meniscus or through the tear. (d) The motorized shaver and back-biting cutter passed through the inframeniscal portal to resect the unstable inferior meniscus and then to smooth and contour the remnant rim of the meniscus under monitoring by a scope through the anteromedial portal. (e) Resection of a cyst located in the front of the anterior horn. (f) The anterior horn of the lateral meniscus after meniscectomy. L = lateral, M = medial, and P = patella.

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