Periprosthetic Joint Infection Does Not Preclude Good Outcomes after a Revision Total Knee Arthroplasty: A 7-Year Follow-Up Study of 144 Retrospective Cases

Figure 2

Bone defect filling process. (a) Intraoperative photograph showing an unconstrained, large bone defect with destruction of the metaphyseal bone (grade 3 bone defect) on the medial side of the tibia (asterisk) and a small, constrained bone defect (arrow) on the lateral side of the tibia. (b) Initially the large bone defect was treated with allografts using screw fixation in the metaphysis. (c) Then the remaining unconstrained bone defect was filled with a metal block and the defect on the lateral side was filled with cement. (d) Intraoperative photograph showing unconstrained large bone defect (asterisks) with destruction of major metaphyseal bone in femur (grade 3 bone defect). (e) Allograft was also used to fill the large bone defect. (f) Implant was inserted to the augmented area and the allograft was tightly compacted between femur component and remaining bone (asterisk).

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