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. 2024 Aug 26;35(1):73–80. doi: 10.1055/s-0044-1789230

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Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 3 — (Representative case). A 39-year-old woman presented with bilateral knee pain for the past 2 to 3 years. Her Western Ontario and McMaster scoring system (WOMAC) total pain score was 12/20. ( A ) Posteroanterior (PA) X-ray shows severe reduction of medial joint space with large osteophytes, subchondral sclerosis, and subchondral cysts suggesting Kellgren–Lawrence grading system (K-L) grade 4. ( B ) Coronal proton density fat-saturated (PDFS) image shows full-thickness cartilage loss in the medial femoral and tibial articular surface with large osteophytes and severe narrowing of the joint space. ( C ) Axial PDFS image shows Baker's cyst between the tendons of semimembranosus and medial head of the gastrocnemius. ( D ) Sagittal PDFS image shows complete maceration of the posterior horn of the medial meniscus. ( E ) Sagittal PDFS image reveals complete anterior cruciate ligament (ACL) tear.