Rim Fracture of a Tibial Base-Plate Due to Retained Cement as a Cause of Catastrophic Failure of Unicompartmental Knee Arthroplasty

Sawatzke, Alexander B.; Bollinger, Alexander J.; Butler, Paul D.; Roberts, Karl C.

doi:10.2106/jbjs.cc.15.00131

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…Although we reported on early and complete tibial baseplate fracture, Sawatzke et al 29 previously reported on a case of delayed tibial baseplate rim fracture after asymmetric seating of the polyethylene liner due to retained cement within the tray. This led to asymmetric loading and polyethylene wear and, ultimately, fracture of the anteromedial rim of the baseplate.…”

Section: Discussionmentioning

confidence: 62%

Early Tibial Baseplate Fracture After Medial Unicondylar Knee Arthroplasty

Torre

Pavano

Connors

et al. 2023

JBJS Case Connector

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Case: Implant failure after unicondylar knee arthroplasty (UKA) is a rare but well-described complication in the arthroplasty literature. However, there is a paucity of literature regarding rapid catastrophic failure of modern implant designs. This is a case report of 2 patients with early catastrophic failure of the tibial baseplate after UKA with a Stryker Restoris MultiCompartmental Knee System implant using Mako robotic assistance, both requiring revision to total knee arthroplasty. Conclusion: Improved awareness and understanding of early UKA tibial baseplate failure may help identify both patient and surgical risk factors that could help prevent further instances in the future.

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Section: Discussionmentioning

confidence: 62%

Early Tibial Baseplate Fracture After Medial Unicondylar Knee Arthroplasty

Torre

Pavano

Connors

et al. 2023

JBJS Case Connector

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show abstract

“…There were no preoperative or intraoperative concerns about proximal tibial bone stock in our case. It has been reported once in a unicompartmental design owing to retained cement [22] . Kang recently described a case of tibial tray and polyethylene fracture in a 72-year-old woman after trauma from a fall [23] .…”

Section: Discussionmentioning

confidence: 94%

Tibial tray fracture in a modern prosthesis with retrieval analysis

et al. 2018

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Fracture of the tibial tray is a rarely observed complication of total knee arthroplasty (TKA), predominately in implants placed greater than a decade ago. This case highlights a case of baseplate fracture in a contemporary prosthesis. The patient presented 1 year after TKA with medial knee pain consistent with pes bursitis. The implant-cement-bone construct was intact and she was managed with corticosteroids. She had persistent pain, acutely developed new varus deformity, and presented with a tibial tray fracture. Retrieval analysis suggested fatigue fracture as the likely mechanism. At time of revision, necrotic bone was found at the medial plateau, which likely caused cantilever bending relative to the well-supported portion of the tray and resultant failure. The patient continues to do well 5 years after revision TKA.

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Rim Fracture of a Tibial Base-Plate Due to Retained Cement as a Cause of Catastrophic Failure of Unicompartmental Knee Arthroplasty

Abstract: Retained cement in the tibial tray resulted in increased tibial tray contact stresses and fatigue fracture of the rim of the tray, creating a free metallic loose body that produced symptoms.

Cited by 2 publications

References 27 publications

Early Tibial Baseplate Fracture After Medial Unicondylar Knee Arthroplasty

Early Tibial Baseplate Fracture After Medial Unicondylar Knee Arthroplasty

Tibial tray fracture in a modern prosthesis with retrieval analysis

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