PMC3658263_01
Weight-bearing radiograph of left knee demonstrating moderate narrowing of the medial joint space.
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Weight-bearing radiographs demonstrated moderate narrowing of the medial joint space (Figure 2).
Magnetic resonance imaging of the left knee demonstrating a medial meniscal tear, herniation from the joint space with bone edema within the medial tibial plateau, and osteochondral damage on the medial femoral articular surface.
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Magnetic resonance imaging confirmed a medial meniscal tear, herniation from the joint space with bone edema within the medial tibial plateau, and osteochondral damage on the medial femoral articular surface (Figure 3).
Weight-bearing radiograph of left knee demonstrating successful initial KineSpring  System.
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The KineSpring procedure followed standard techniques that have been described elsewhere and was uneventful (Figure 4).
Weight-bearing radiograph of left knee demonstrating successful KineSpring  System following two-stage revision procedure.
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Two incisions were made through the original exposure sites and a new absorber unit was fitted onto the pre-existing bases and subsequently activated (Figure 5).