Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty
Abstract Background It is not established beyond doubt whether improvements in functional outcome after total knee arthroplasty (TKA) are maintained in the long term. We therefore investigated the temporal patterns of functional outcome [using range of motion (ROM), American Knee Society (AKS) score...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-03-01
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| Series: | Journal of Orthopaedics and Traumatology |
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| Online Access: | http://link.springer.com/article/10.1186/s10195-019-0520-8 |
| _version_ | 1828129666038235136 |
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| author | Vivek Tiwari Jonggeun Lee Gaurav Sharma Yeon Gwi Kang Tae Kyun Kim |
| author_facet | Vivek Tiwari Jonggeun Lee Gaurav Sharma Yeon Gwi Kang Tae Kyun Kim |
| author_sort | Vivek Tiwari |
| collection | DOAJ |
| description | Abstract Background It is not established beyond doubt whether improvements in functional outcome after total knee arthroplasty (TKA) are maintained in the long term. We therefore investigated the temporal patterns of functional outcome [using range of motion (ROM), American Knee Society (AKS) score, Western Ontario and McMaster Universities Arthritis Index (WOMAC) score, and 36-Item Short Form Health Survey (SF-36) score] over a 5-year period after uncomplicated TKA, and whether these patterns differed by implant type and patient age. Materials and methods This prospective study evaluated 138 patients who underwent unilateral TKA with either a mobile-bearing (MB) or fixed-bearing (FB) posterior-stabilized prosthesis. An independent investigator evaluated the functional outcome at five time points: preoperatively and at 6-month, 1-year, 2-year, and 5-year follow-up. Differences in functional outcomes between adjacent time points were evaluated by mixed-effect model repeat measurement (MMRM). Results The different functional outcome scores showed improvement till 6 months–2 years, followed by a variable decline. In patients aged ≥ 68 years with an MB implant, most of the functional outcome scores declined between 2 and 5 years after variable initial improvement till 6 months–2 years, whereas the parameters plateaued after 2 years in those aged < 68 years and in older patients with an FB implant. Conclusions A decline in function and pain relief occurs 2 years after TKA. This decline is more evident in older patients with an MB prosthesis. Based on these findings, we believe that use of MB implants in older patients (≥ 68 years) requires further investigation. Level of evidence Level 3. |
| first_indexed | 2024-04-11T16:22:15Z |
| format | Article |
| id | doaj.art-765c29e9879444a4b5714512c5a8c66c |
| institution | Directory Open Access Journal |
| issn | 1590-9921 1590-9999 |
| language | English |
| last_indexed | 2024-04-11T16:22:15Z |
| publishDate | 2019-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Orthopaedics and Traumatology |
| spelling | doaj.art-765c29e9879444a4b5714512c5a8c66c2022-12-22T04:14:17ZengSpringerOpenJournal of Orthopaedics and Traumatology1590-99211590-99992019-03-0120111010.1186/s10195-019-0520-8Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplastyVivek Tiwari0Jonggeun Lee1Gaurav Sharma2Yeon Gwi Kang3Tae Kyun Kim4Joint Reconstruction Center, Seoul National University Bundang HospitalJoint Reconstruction Center, Seoul National University Bundang HospitalJoint Reconstruction Center, Seoul National University Bundang HospitalJoint Reconstruction Center, Seoul National University Bundang HospitalJoint Reconstruction Center, Seoul National University Bundang HospitalAbstract Background It is not established beyond doubt whether improvements in functional outcome after total knee arthroplasty (TKA) are maintained in the long term. We therefore investigated the temporal patterns of functional outcome [using range of motion (ROM), American Knee Society (AKS) score, Western Ontario and McMaster Universities Arthritis Index (WOMAC) score, and 36-Item Short Form Health Survey (SF-36) score] over a 5-year period after uncomplicated TKA, and whether these patterns differed by implant type and patient age. Materials and methods This prospective study evaluated 138 patients who underwent unilateral TKA with either a mobile-bearing (MB) or fixed-bearing (FB) posterior-stabilized prosthesis. An independent investigator evaluated the functional outcome at five time points: preoperatively and at 6-month, 1-year, 2-year, and 5-year follow-up. Differences in functional outcomes between adjacent time points were evaluated by mixed-effect model repeat measurement (MMRM). Results The different functional outcome scores showed improvement till 6 months–2 years, followed by a variable decline. In patients aged ≥ 68 years with an MB implant, most of the functional outcome scores declined between 2 and 5 years after variable initial improvement till 6 months–2 years, whereas the parameters plateaued after 2 years in those aged < 68 years and in older patients with an FB implant. Conclusions A decline in function and pain relief occurs 2 years after TKA. This decline is more evident in older patients with an MB prosthesis. Based on these findings, we believe that use of MB implants in older patients (≥ 68 years) requires further investigation. Level of evidence Level 3.http://link.springer.com/article/10.1186/s10195-019-0520-8Total knee arthroplastyFunctional outcomePatternAgeProsthesis |
| spellingShingle | Vivek Tiwari Jonggeun Lee Gaurav Sharma Yeon Gwi Kang Tae Kyun Kim Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty Journal of Orthopaedics and Traumatology Total knee arthroplasty Functional outcome Pattern Age Prosthesis |
| title | Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty |
| title_full | Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty |
| title_fullStr | Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty |
| title_full_unstemmed | Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty |
| title_short | Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty |
| title_sort | temporal patterns of commonly used clinical outcome scales during a 5 year period after total knee arthroplasty |
| topic | Total knee arthroplasty Functional outcome Pattern Age Prosthesis |
| url | http://link.springer.com/article/10.1186/s10195-019-0520-8 |
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