Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty
Background: We sought to determine the 10-year survivorship and reasons for revision for a fixed-bearing unicompartmental knee arthroplasty (UKA) design. In addition, we report on patient-reported outcomes and satisfaction and compare results of medial vs lateral compartment UKA and cemented vs ceme...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-06-01
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| Series: | Arthroplasty Today |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344120300297 |
| _version_ | 1811210297783877632 |
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| author | Ryland Kagan, MD Mike B. Anderson, MSC Travis Bailey, MD Aaron A. Hofmann, MD Christopher E. Pelt, MD |
| author_facet | Ryland Kagan, MD Mike B. Anderson, MSC Travis Bailey, MD Aaron A. Hofmann, MD Christopher E. Pelt, MD |
| author_sort | Ryland Kagan, MD |
| collection | DOAJ |
| description | Background: We sought to determine the 10-year survivorship and reasons for revision for a fixed-bearing unicompartmental knee arthroplasty (UKA) design. In addition, we report on patient-reported outcomes and satisfaction and compare results of medial vs lateral compartment UKA and cemented vs cementless UKA with the same design. Methods: We performed a retrospective cohort study on a single-surgeon case series using a single fixed-bearing UKA design in 158 consecutive patients who underwent 177 UKA procedures between July 2000 and December 2010. Cases missing follow-up within the last year, clinically or via telephone, were excluded (n = 17, 10%). A cumulative incidence competing risk model was used to evaluate the cumulative incidence of failure. Results: Cumulative incidence of revision at a mean follow-up of 10 years was 13%. The majority of revisions (43%, 10/23) were for aseptic tibial component loosening, followed by progression of osteoarthritis (5/23, 22%). All Patient Reported Outcomes Measurement Information System measures demonstrated mean T-scores within one standard deviation from the US population norm. The mean Knee Injury and Osteoarthritis Outcome Score for Joint Replacement was 96.9 (range, 40-100). The mean pain score was 3.8 (range, 0-8). Eighty-six percent of patients were satisfied with the UKA. Conclusions: At 10-year follow-up, the most common causes for revision were aseptic tibial loosening and adjacent compartment knee arthroplasty, and similar results were found for medial vs lateral compartment and for cemented vs cementless UKA. Surgeons should consider these findings for future UKA designs, and this represents the first study reporting on survivorship and outcomes of this specific UKA design. |
| first_indexed | 2024-04-12T04:52:11Z |
| format | Article |
| id | doaj.art-3c20551fc2e548c6a39d8a716bad7519 |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-04-12T04:52:11Z |
| publishDate | 2020-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-3c20551fc2e548c6a39d8a716bad75192022-12-22T03:47:15ZengElsevierArthroplasty Today2352-34412020-06-0162267273Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee ArthroplastyRyland Kagan, MD0Mike B. Anderson, MSC1Travis Bailey, MD2Aaron A. Hofmann, MD3Christopher E. Pelt, MD4Department of Orthopaedics and Rehabilitation, Oregon Health & Science University, Portland, OR, USADepartment of Orthopaedics, University of Utah School of Medicine, Salt Lake City, UT, USADepartment of Orthopaedics, University of Utah School of Medicine, Salt Lake City, UT, USAHoffmann Arthritis Institute, Salt Lake City, UT, USADepartment of Orthopaedics, University of Utah School of Medicine, Salt Lake City, UT, USA; Corresponding author. Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way, Salt Lake City, UT 84108, USA. Tel.: +1 801 213 3281.Background: We sought to determine the 10-year survivorship and reasons for revision for a fixed-bearing unicompartmental knee arthroplasty (UKA) design. In addition, we report on patient-reported outcomes and satisfaction and compare results of medial vs lateral compartment UKA and cemented vs cementless UKA with the same design. Methods: We performed a retrospective cohort study on a single-surgeon case series using a single fixed-bearing UKA design in 158 consecutive patients who underwent 177 UKA procedures between July 2000 and December 2010. Cases missing follow-up within the last year, clinically or via telephone, were excluded (n = 17, 10%). A cumulative incidence competing risk model was used to evaluate the cumulative incidence of failure. Results: Cumulative incidence of revision at a mean follow-up of 10 years was 13%. The majority of revisions (43%, 10/23) were for aseptic tibial component loosening, followed by progression of osteoarthritis (5/23, 22%). All Patient Reported Outcomes Measurement Information System measures demonstrated mean T-scores within one standard deviation from the US population norm. The mean Knee Injury and Osteoarthritis Outcome Score for Joint Replacement was 96.9 (range, 40-100). The mean pain score was 3.8 (range, 0-8). Eighty-six percent of patients were satisfied with the UKA. Conclusions: At 10-year follow-up, the most common causes for revision were aseptic tibial loosening and adjacent compartment knee arthroplasty, and similar results were found for medial vs lateral compartment and for cemented vs cementless UKA. Surgeons should consider these findings for future UKA designs, and this represents the first study reporting on survivorship and outcomes of this specific UKA design.http://www.sciencedirect.com/science/article/pii/S2352344120300297Unicompartmental knee arthroplastyFixed-bearing arthroplastyNatural knee unicompartmentalSurvivorshipPatient-reported outcomesSatisfaction |
| spellingShingle | Ryland Kagan, MD Mike B. Anderson, MSC Travis Bailey, MD Aaron A. Hofmann, MD Christopher E. Pelt, MD Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty Arthroplasty Today Unicompartmental knee arthroplasty Fixed-bearing arthroplasty Natural knee unicompartmental Survivorship Patient-reported outcomes Satisfaction |
| title | Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty |
| title_full | Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty |
| title_fullStr | Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty |
| title_full_unstemmed | Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty |
| title_short | Ten-Year Survivorship, Patient-Reported Outcomes, and Satisfaction of a Fixed-Bearing Unicompartmental Knee Arthroplasty |
| title_sort | ten year survivorship patient reported outcomes and satisfaction of a fixed bearing unicompartmental knee arthroplasty |
| topic | Unicompartmental knee arthroplasty Fixed-bearing arthroplasty Natural knee unicompartmental Survivorship Patient-reported outcomes Satisfaction |
| url | http://www.sciencedirect.com/science/article/pii/S2352344120300297 |
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