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Case Reports
. 2023 Sep 18:23:101215.
doi: 10.1016/j.artd.2023.101215. eCollection 2023 Oct.

Conversion of Patellofemoral Arthroplasty to Robotic-Assisted Total Knee Arthroplasty

Andrew D Lachance  1 , Roman Steika  1 , Jeffrey Lutton  1 , David Austin  1
Affiliations
Case Reports

Conversion of Patellofemoral Arthroplasty to Robotic-Assisted Total Knee Arthroplasty

Andrew D Lachance et al. Arthroplast Today. .

Abstract

Conversion of patellofemoral arthroplasty to total knee arthroplasty (TKA) has been described as similar to primary TKA, although it may come with more challenges and worse outcomes. With the increased rate of revision following conversion TKA vs primary TKA, robotically assisted TKA provides an alternative technique to manual conversion. We present 3 cases of robot-assisted conversion of prior patellofemoral arthroplasty to TKA with good mechanical and clinical outcomes and no intraoperative complications.

Keywords: Patellofemoral; Revision; Robotic assisted; TKA.

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Figures

Figure 1
Figure 1
Case 1 preoperative (a) AP, (b) lateral, and (c) sunrise views of the left knee showing patellofemoral joint arthroplasty in place with no evidence of loosening.
Figure 2
Figure 2
Case 2 preoperative (a) AP, (b) lateral, and (c) sunrise views of the left knee showing patellofemoral joint arthroplasty in place with no evidence of loosening. Medial compartment joint space narrowing is evident.
Figure 3
Figure 3
Case 3 preoperative (a) AP, (b) right and (c) left lateral, and (d) sunrise views of the left knee showing patellofemoral joint arthroplasty in place with no evidence of loosening. Medial compartment joint space narrowing is evident.
Figure 4
Figure 4
Case 1 (a) preoperative and (b) intraoperative screenshots from the MAKO robot used in bone preparation and balancing.
Figure 5
Figure 5
(a) Case 1 and (b) case 2 intraoperative registration with the Mako robot.
Figure 6
Figure 6
Case 1 postoperative x-rays with (a) anterior to posterior, (b) lateral, and (c) sunrise views showing total knee arthroplasty in good alignment.
Figure 7
Figure 7
Case 2 postoperative x-rays with (a) AP and (b) lateral views showing total knee arthroplasty in good alignment.
Figure 8
Figure 8
Case 3 postoperative x-rays with (a and c) AP and (b and d) lateral views showing total knee arthroplasty in good alignment.
See this image and copyright information in PMC

References

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