Arthroplasty Today (2021-04-01)

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

  • Ricardo Ocampo, BS,
  • Eric Azua, BA,
  • Matthew Presti, BA,
  • Lynn Voss, MD

Journal volume & issue
Vol. 8
pp. 222 – 225


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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.