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Papers of the Week


2021 Apr


Arthroplast Today


8

Atraumatic Fracture of the Medial Femoral Condyle of a Total Knee Arthroplasty.

Authors

Ocampo R, Azua E, Presti M, Voss L
Arthroplast Today. 2021 Apr; 8:222-225.
PMID: 33937462.

Abstract

The fracture of the femoral component is a rare complication of a total knee arthroplasty (TKA). This article presents a case in which a 70-year-old man underwent a left press-fit Advance Medial-Pivot Knee System TKA (MicroPort Orthopedics, Arlington, TN) in 2000. Twenty years later, he experienced a nontraumatic onset of knee pain after standing up from a lunge position. Radiographs and CT scans revealed a complete fracture of the medial condyle of the femoral component. Revision surgery was performed confirming the broken component. A cemented Triathlon Total Stabilizer (Stryker Orthopedics, Kalamazoo, MI) prosthesis was used for the revision. The authors recommend that surgeons maintain a high level of suspicion of component fracture when patients present with persistent severe knee pain and instability after a TKA.