Posterior Cruciate Ligament Injury After Retrograde Nailing of Periprosthetic Distal Femur Fractures
A 51-year-old man and 64-year-old woman with bilateral cruciate-retaining total knee arthroplasties (CR-TKAs) who sustained unilateral periprosthetic distal femur fractures above their CR-TKA and experienced knee instability secondary to an…