A classification-based approach to the patella in revision total knee arthroplasty
Background: There is a paucity of data to guide management of the patella in revision total knee arthroplasty (RTKA). The purpose of this study was to review our experience with patellar management in RTKA. Methods: We retrospectively reviewed 422 consecutive RTKAs at a minimum of 2 years (mean, 42...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-12-01
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| Series: | Arthroplasty Today |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344117300419 |
| _version_ | 1818692058119929856 |
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| author | Matthew W. Tetreault, MD Christopher E. Gross, MD Paul H. Yi, BA Daniel D. Bohl, MD, MPH Scott M. Sporer, MD Craig J. Della Valle, MD |
| author_facet | Matthew W. Tetreault, MD Christopher E. Gross, MD Paul H. Yi, BA Daniel D. Bohl, MD, MPH Scott M. Sporer, MD Craig J. Della Valle, MD |
| author_sort | Matthew W. Tetreault, MD |
| collection | DOAJ |
| description | Background: There is a paucity of data to guide management of the patella in revision total knee arthroplasty (RTKA). The purpose of this study was to review our experience with patellar management in RTKA. Methods: We retrospectively reviewed 422 consecutive RTKAs at a minimum of 2 years (mean, 42 months). Patellar management was guided by a classification that considered stability, size, and position of the implanted patellar component, thickness/quality of remaining bone stock, and extensor mechanism competence. Results: Management in 304 aseptic revisions included retention of a well-fixed component in 212 (69.7%) and revision using an all-polyethylene component in 46 (15.1%). Patella-related complications included 5 extensor mechanism ruptures (1.6%), 3 cases of patellar maltracking (1.0%), and 2 periprosthetic patellar fractures (0.7%). Of 118 2-stage revisions for infection, an all-polyethylene component was used in 88 (74.6%), patelloplasty in 20 (16.9%), and patellectomy in 7 (5.9%). Patella-related complications included 4 cases of patellar maltracking (3.4%), 3 extensor mechanism ruptures (2.5%), and 1 periprosthetic patellar fracture (0.8%). Conclusions: Septic revisions required concomitant lateral releases more frequently (38.1% vs 10.9%; P < .02) but had a similar rate of patellar complications (6.8% vs 3.3%; P = .40). No cases required rerevision specifically for failure of the patellar component. Patients who had a patelloplasty had worse postoperative Knee Society functional scores than those with a retained or revised patellar component. In most aseptic RTKAs, a well-fixed patellar component can be retained. If revision is required, a standard polyethylene component is sufficient in most septic and aseptic revisions. Rerevisions related to the patellar component are infrequent. Keywords: Patella, Revision total knee arthroplasty, Revision TKA, Extensor mechanism, TKA |
| first_indexed | 2024-12-17T12:51:45Z |
| format | Article |
| id | doaj.art-dde811b25e7544ab86ca0a20b1171419 |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-12-17T12:51:45Z |
| publishDate | 2017-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-dde811b25e7544ab86ca0a20b11714192022-12-21T21:47:35ZengElsevierArthroplasty Today2352-34412017-12-0134264268A classification-based approach to the patella in revision total knee arthroplastyMatthew W. Tetreault, MD0Christopher E. Gross, MD1Paul H. Yi, BA2Daniel D. Bohl, MD, MPH3Scott M. Sporer, MD4Craig J. Della Valle, MD5Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA; Corresponding author. 1611 West Harrison Street, Suite 300, Chicago, IL 60612, USA. Tel.: +1 518 588 0919.Department of Orthopaedic Surgery, Medical University of South Carolina, Charleston, SC, USADepartment of Radiology, Johns Hopkins University, Baltimore, MD, USADepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USADepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA; Joint Replacement Institute, Northwestern Medicine Central DuPage Hospital, Winfield, IL, USADepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USABackground: There is a paucity of data to guide management of the patella in revision total knee arthroplasty (RTKA). The purpose of this study was to review our experience with patellar management in RTKA. Methods: We retrospectively reviewed 422 consecutive RTKAs at a minimum of 2 years (mean, 42 months). Patellar management was guided by a classification that considered stability, size, and position of the implanted patellar component, thickness/quality of remaining bone stock, and extensor mechanism competence. Results: Management in 304 aseptic revisions included retention of a well-fixed component in 212 (69.7%) and revision using an all-polyethylene component in 46 (15.1%). Patella-related complications included 5 extensor mechanism ruptures (1.6%), 3 cases of patellar maltracking (1.0%), and 2 periprosthetic patellar fractures (0.7%). Of 118 2-stage revisions for infection, an all-polyethylene component was used in 88 (74.6%), patelloplasty in 20 (16.9%), and patellectomy in 7 (5.9%). Patella-related complications included 4 cases of patellar maltracking (3.4%), 3 extensor mechanism ruptures (2.5%), and 1 periprosthetic patellar fracture (0.8%). Conclusions: Septic revisions required concomitant lateral releases more frequently (38.1% vs 10.9%; P < .02) but had a similar rate of patellar complications (6.8% vs 3.3%; P = .40). No cases required rerevision specifically for failure of the patellar component. Patients who had a patelloplasty had worse postoperative Knee Society functional scores than those with a retained or revised patellar component. In most aseptic RTKAs, a well-fixed patellar component can be retained. If revision is required, a standard polyethylene component is sufficient in most septic and aseptic revisions. Rerevisions related to the patellar component are infrequent. Keywords: Patella, Revision total knee arthroplasty, Revision TKA, Extensor mechanism, TKAhttp://www.sciencedirect.com/science/article/pii/S2352344117300419 |
| spellingShingle | Matthew W. Tetreault, MD Christopher E. Gross, MD Paul H. Yi, BA Daniel D. Bohl, MD, MPH Scott M. Sporer, MD Craig J. Della Valle, MD A classification-based approach to the patella in revision total knee arthroplasty Arthroplasty Today |
| title | A classification-based approach to the patella in revision total knee arthroplasty |
| title_full | A classification-based approach to the patella in revision total knee arthroplasty |
| title_fullStr | A classification-based approach to the patella in revision total knee arthroplasty |
| title_full_unstemmed | A classification-based approach to the patella in revision total knee arthroplasty |
| title_short | A classification-based approach to the patella in revision total knee arthroplasty |
| title_sort | classification based approach to the patella in revision total knee arthroplasty |
| url | http://www.sciencedirect.com/science/article/pii/S2352344117300419 |
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