Revision of Failed Unicompartmental Total Knee Arthroplasty

Revision of 33 unicompartmental knee prostheses using total knee arthroplasty: strategy and results

“…The results are globally satisfactory (global IKS score of 166.72±21.3 points) and comparable to other series in the literature [8,10,16,17,20,21] where the global IKS score varied between 135 and 172 points (Table 1).…”

“…Numerous other authors [3,4,7,10,16,17,24] stress the importance of bone defects in the tibia with rates varying from 33-77% (Table 2). Materials used to fill the defects varied among the authors.…”

“…Materials used to fill the defects varied among the authors. These included cement, [24] 76% Cement, autograft Lai and Rand [16] 50% Cement Gill et al [10] 77% Autograft, allograft, metallic wedge Levine et al [17] 33% Allograft Chakrabarty et al [7] 60% Autograft, cement Böhm and Landsiedl [4] 39% Autograft Our series (2005) 60% segmental Metallic wedge, allograft, autograft Table 2 Bone defects and methods of reconstruction metal wedges, autografts, allografts, and screws (Table 2). Evaluating bone defects also varied among authors, whereby some used the volume [7,8] and others the thickness.…”

Results of a French multicentre retrospective experience with four hundred and eighteen failed unicondylar knee arthroplasties

“…Revision to a total knee replacement is by the far the commonest solution reported both in our series and the literature [17][18][19][20][21][22][23][24][25][26][27]. Although widely considered to be easier than revising a TKA and more difficult than a primary knee replacement [25][26][27], this procedure can present the operating surgeon with several challenges.…”

“…This technique was used nine times in our series. In principle, in cavitary bone loss (type 1 and 2A), defects can be filled with either small cancellous grafts from waste bone cuts or with cement [17,20]. In cases of segmental bone loss, metallic augments, segmental allograft or screw augmentation sunk in cement can be used [17].…”