Modular junction fractures in a modern rotating-platform knee arthroplasty system
In this series, we report the findings from four patients who presented with pain and mechanical symptoms after revision total knee arthroplasty with the DePuy Sigma TC3 RP prosthesis. Plain radiographs for each patient demonstrated failure of the femoral component at the modular junction of the fem...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Arthroplasty Today |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344118301547 |
| _version_ | 1811204555577229312 |
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| author | Ugonna Ihekweazu, MD P. Maxwell Courtney, MD Elexis C. Baral, BS Matthew S. Austin, MD Alexander S. McLawhorn, MD, MBA |
| author_facet | Ugonna Ihekweazu, MD P. Maxwell Courtney, MD Elexis C. Baral, BS Matthew S. Austin, MD Alexander S. McLawhorn, MD, MBA |
| author_sort | Ugonna Ihekweazu, MD |
| collection | DOAJ |
| description | In this series, we report the findings from four patients who presented with pain and mechanical symptoms after revision total knee arthroplasty with the DePuy Sigma TC3 RP prosthesis. Plain radiographs for each patient demonstrated failure of the femoral component at the modular junction of the femoral prosthesis. Retrieved implants at the time of surgery revealed fractures occurring exclusively at the femoral adapter bolt and the corresponding adapter. Retrieval analysis was performed on two of the four cases by visual light microscopy. Our findings suggest that the implants had suffered from fatigue fractures likely due to cyclic loading. This is the first case series to describe the failure mechanism and clinical scenarios contributing to failure of the femoral locking bolt and adapter sleeve in this prosthesis. Keywords: Total knee arthroplasty, Implant failure revision, Modular |
| first_indexed | 2024-04-12T03:15:06Z |
| format | Article |
| id | doaj.art-2a22cc8064ea40aba6897c5025f4b70b |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-04-12T03:15:06Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-2a22cc8064ea40aba6897c5025f4b70b2022-12-22T03:50:10ZengElsevierArthroplasty Today2352-34412019-03-01514348Modular junction fractures in a modern rotating-platform knee arthroplasty systemUgonna Ihekweazu, MD0P. Maxwell Courtney, MD1Elexis C. Baral, BS2Matthew S. Austin, MD3Alexander S. McLawhorn, MD, MBA4Adult Reconstruction & Joint Replacement Division, Hospital for Special Surgery, New York, NY, USAAdult Reconstruction Division, Rothman Institute, Philadelphia, PA, USADepartment of Biomechanics, Hospital for Special Surgery, New York, NY, USA; Corresponding author. Department of Biomechanics, Hospital for Special Surgery, New York, NY 10021, USA. Tel. + 1 646 797 8904.Adult Reconstruction Division, Rothman Institute, Philadelphia, PA, USAAdult Reconstruction & Joint Replacement Division, Hospital for Special Surgery, New York, NY, USAIn this series, we report the findings from four patients who presented with pain and mechanical symptoms after revision total knee arthroplasty with the DePuy Sigma TC3 RP prosthesis. Plain radiographs for each patient demonstrated failure of the femoral component at the modular junction of the femoral prosthesis. Retrieved implants at the time of surgery revealed fractures occurring exclusively at the femoral adapter bolt and the corresponding adapter. Retrieval analysis was performed on two of the four cases by visual light microscopy. Our findings suggest that the implants had suffered from fatigue fractures likely due to cyclic loading. This is the first case series to describe the failure mechanism and clinical scenarios contributing to failure of the femoral locking bolt and adapter sleeve in this prosthesis. Keywords: Total knee arthroplasty, Implant failure revision, Modularhttp://www.sciencedirect.com/science/article/pii/S2352344118301547 |
| spellingShingle | Ugonna Ihekweazu, MD P. Maxwell Courtney, MD Elexis C. Baral, BS Matthew S. Austin, MD Alexander S. McLawhorn, MD, MBA Modular junction fractures in a modern rotating-platform knee arthroplasty system Arthroplasty Today |
| title | Modular junction fractures in a modern rotating-platform knee arthroplasty system |
| title_full | Modular junction fractures in a modern rotating-platform knee arthroplasty system |
| title_fullStr | Modular junction fractures in a modern rotating-platform knee arthroplasty system |
| title_full_unstemmed | Modular junction fractures in a modern rotating-platform knee arthroplasty system |
| title_short | Modular junction fractures in a modern rotating-platform knee arthroplasty system |
| title_sort | modular junction fractures in a modern rotating platform knee arthroplasty system |
| url | http://www.sciencedirect.com/science/article/pii/S2352344118301547 |
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