Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement
A 66-year-old woman presented with persistent knee effusion three months after undergoing a cemented medial uni-compartmental knee replacement. She was afebrile and able to walk with a stick. Physical examination revealed moderate effusion. Radiographs showed posteriorly extruded cement, while compu...
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2025-01-01
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| author | Peter Kam-To Siu Wei-Ting Wu Levent Özçakar Ke-Vin Chang |
| author_facet | Peter Kam-To Siu Wei-Ting Wu Levent Özçakar Ke-Vin Chang |
| author_sort | Peter Kam-To Siu |
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| description | A 66-year-old woman presented with persistent knee effusion three months after undergoing a cemented medial uni-compartmental knee replacement. She was afebrile and able to walk with a stick. Physical examination revealed moderate effusion. Radiographs showed posteriorly extruded cement, while computed tomography confirmed the absence of implant loosening but was unable to adequately visualize the adjacent soft tissues due to metallic artifacts. Ultrasound identified posterior cement extrusion beyond the femoral component, causing a delamination tear of the posterior capsule and indentation on the medial gastrocnemius. Knee arthrocentesis yielded 60 mL of blood-stained fluid with unremarkable analysis, and the patient reported improvement following the procedure. To our knowledge, this is the first report to highlight the unique role of ultrasound in detailing the anatomy of extruded cement and its impact on adjacent soft tissues following knee replacement. We demonstrate the critical structures that should be evaluated and how ultrasound aids in managing this postoperative complication. |
| format | Article |
| id | doaj-art-95e855a23ba841158443899761639d94 |
| institution | Kabale University |
| issn | 2075-4418 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diagnostics |
| spelling | doaj-art-95e855a23ba841158443899761639d942025-01-10T13:16:46ZengMDPI AGDiagnostics2075-44182025-01-0115111210.3390/diagnostics15010112Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee ReplacementPeter Kam-To Siu0Wei-Ting Wu1Levent Özçakar2Ke-Vin Chang3Department of Orthopaedics and Traumatology, Queen Mary Hospital, Hong KongDepartment of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei 10845, TaiwanDepartment of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara 06100, TurkeyDepartment of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei 10845, TaiwanA 66-year-old woman presented with persistent knee effusion three months after undergoing a cemented medial uni-compartmental knee replacement. She was afebrile and able to walk with a stick. Physical examination revealed moderate effusion. Radiographs showed posteriorly extruded cement, while computed tomography confirmed the absence of implant loosening but was unable to adequately visualize the adjacent soft tissues due to metallic artifacts. Ultrasound identified posterior cement extrusion beyond the femoral component, causing a delamination tear of the posterior capsule and indentation on the medial gastrocnemius. Knee arthrocentesis yielded 60 mL of blood-stained fluid with unremarkable analysis, and the patient reported improvement following the procedure. To our knowledge, this is the first report to highlight the unique role of ultrasound in detailing the anatomy of extruded cement and its impact on adjacent soft tissues following knee replacement. We demonstrate the critical structures that should be evaluated and how ultrasound aids in managing this postoperative complication.https://www.mdpi.com/2075-4418/15/1/112gonarthrosispainarthroplastymaterialsonography |
| spellingShingle | Peter Kam-To Siu Wei-Ting Wu Levent Özçakar Ke-Vin Chang Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement Diagnostics gonarthrosis pain arthroplasty material sonography |
| title | Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement |
| title_full | Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement |
| title_fullStr | Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement |
| title_full_unstemmed | Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement |
| title_short | Ultrasound Examination for Cement Extrusion After Uni-Compartmental Knee Replacement |
| title_sort | ultrasound examination for cement extrusion after uni compartmental knee replacement |
| topic | gonarthrosis pain arthroplasty material sonography |
| url | https://www.mdpi.com/2075-4418/15/1/112 |
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