PMC4274651_01
Sagittal MRI of the left medial meniscus with intrasubstance degeneration in the posterior horn.
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MRI revealed a large posterior horn medial meniscus with intrasubstance signal in the posterior horn likely representing degeneration (Figure 1). MRI of the right knee revealed an increased signal in the posterior horn with an enlarged medial meniscus.
(a) Unusually large posterior horn suggesting partial discoid medial meniscus. (b) Probe inserted into the intrasubstance degeneration via the superior surface tear. (c) Medial meniscus after repair of peripheral fragment.
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A small peripheral tear in the superior surface of the medial meniscus allowed access to the intrasubstance degeneration (Figure 2(a)). The tear was repaired with two all-inside meniscal repair devices (Figures 2(b) and 2(c)).
PMC4274651_02
Coronal MRI of the right knee revealing intra-articular and bucket-handle medial meniscus tear with the displaced fragment located in the intercondylar notch.
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MRI of the right knee revealed a bucket-handle medial meniscus tear (Figure 3).
(a) Large displaced medial meniscus fragment located in the intercondylar notch. (b) Posterior edge of the tear. (c) Anterior edge of the tear. (d) Medial meniscus remaining after debridement.
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Arthroscopy revealed a degenerative, complex horizontal discoid medial bucket-handle meniscus tear (Figures 4(a)-4(d)).
(a) Axial view diagram drawing displaying the mother's superficial tear. (b) Sagittal view diagram drawing of the mother's horizontal meniscal tear.
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She shared with us a hand-written diagram given to her by the surgeon (Figures 5(a) and 5(b)).