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. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: Eur Radiol. 2016 Apr 27;27(1):404–413. doi: 10.1007/s00330-016-4361-z

Fig. 2 — Development of radiographic osteoarthritis (OA) after partial meniscectomy. A. Baseline anterior–posterior radiograph of the knee shows physiologic joint anatomy without signs of OA. B. 12-month follow-up image shows definite radiographic OA with presence of medial tibial and femoral osteophytes at the joint margin consistent with radiographic OA Kellgren-Lawrence grade 2. C. Corresponding baseline MRI confirms absence of structural findings of OA. D. Follow-up image confirms partial meniscectomy with missing meniscal substance of the meniscal body (black arrow) and incident cartilage thinning (white arrows). An incident osteophyte is also depicted on the MRI (arrowhead).

Fig. 2 — Development of radiographic osteoarthritis (OA) after partial meniscectomy. A. Baseline anterior–posterior radiograph of the knee shows physiologic joint anatomy without signs of OA. B. 12-month follow-up image shows definite radiographic OA with presence of medial tibial and femoral osteophytes at the joint margin consistent with radiographic OA Kellgren-Lawrence grade 2. C. Corresponding baseline MRI confirms absence of structural findings of OA. D. Follow-up image confirms partial meniscectomy with missing meniscal substance of the meniscal body (black arrow) and incident cartilage thinning (white arrows). An incident osteophyte is also depicted on the MRI (arrowhead).