Volume 4, Issue 1, Pages (March 2018)

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Volume 4, Issue 1, Pages 15-19 (March 2018) Early failure with massive metallosis and posteromedial wear following atraumatic anterior cruciate ligament rupture after medial unicompartmental knee arthroplasty Ashok Rajgopal, MS, MCh, FRCS (Orth), Inayat Panda, MS, DNB (Orth), Vipin C. Tyagi, D-Orth Arthroplasty Today Volume 4, Issue 1, Pages 15-19 (March 2018) DOI: 10.1016/j.artd.2017.09.007 Copyright © 2017 The Authors Terms and Conditions

Figure 1 Immediate postoperative radiographs following index medial compartmental arthroplasty surgery showing well-fixed and well-aligned femoral and tibial components. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 2 At 2 years of follow-up, anteroposterior and lateral radiographs of medial UKA knee showing posterior displacement of femur, absent medial joint space, and increased femorotibial contact area. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 3 Intraoperative image showing black rubbery synovium due to massive metallosis. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 4 Full thickness wear of the tibial polyethylene insert and metallic tray. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 5 Polyethylene insert showing full thickness wear over the posterior half. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 6 Metallic tibial component showing full thickness wear over the posterior one-third. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions

Figure 7 Postoperative radiographs after revision with a posterior-stabilized total knee prosthesis with tibial stem extension. Arthroplasty Today 2018 4, 15-19DOI: (10.1016/j.artd.2017.09.007) Copyright © 2017 The Authors Terms and Conditions