Research Article
A Retrospective Study of Unicompartmental Knee Arthroplasty Functional Outcome and the Incidence of Medial Meniscus Posterior Root Tear in Spontaneous Osteonecrosis of the Knee
Figure 3
(a) Cleft sign: interruption of the medial meniscus at the posterior horn in axial plane. (b) Ghost sign: empty image of medial meniscus.
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(b) |