Analysis of the clinical efficacy of two-stage revision surgery in the treatment of periprosthetic joint infection in the knee: A retrospective study

Figure 1 A 78-year-old female patient with periprosthetic joint infection after left knee arthroplasty. Radiographic image of the left knee joint showing good position of the prosthesis without significant loosening. A: Anteroposterior; B: Lateral.

Figure 2 A 78-year-old female patient after one-stage debridement, implant removal, and antibiotic bone cement spacer exclusion. A: Appearance of the infected skin around the prosthesis after left knee arthroplasty with sinus canal formation; B: Complete debridement after prosthesis removal; C: After the placement of antibiotic bone cement placeholders, the space is moderate; D and E: Radiographic images of the left knee after exclusion: Anteroposterior (D) and lateral (E); F: Pathology showing chronic suppurative inflammation.

Figure 3 Radiographic image of the left knee of a 78-year-old female patient after phase II revision. A and B: Radiographic images of the left knee after revision: Anteroposterior (A) and latera (B); C: Full-length orthotopic position of the lower limbs after revision; D and E: Radiographic images of the left knee 2 yr after revision: Anteroposterior (D) and lateral (E).

Figure 4 A 51-year-old female patient with periprosthetic joint infection after right knee arthroplasty. A and B: Radiographic images of the right knee arthroplasty: Anteroposterior (A) and lateral (B); C and D: Radiographic images of the right knee after exclusion: Anteroposterior (C) and lateral (D); E and F: Radiographic images of the right knee after revision surgery: Anteroposterior (E) and lateral (F); G and H: Radiographic images of the right knee 2 yr after revision: Anteroposterior (G) and lateral (H).