Intraoperative ligament laxity influences functional outcome 1year after total knee arthroplasty
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| 024 | 7 | 0 | |a 10.1007/s00167-014-3108-0 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00167-014-3108-0 | ||
| 245 | 0 | 0 | |a Intraoperative ligament laxity influences functional outcome 1year after total knee arthroplasty |h [Elektronische Daten] |c [Eirik Aunan, Thomas Kibsgård, Lien Diep, Stephan Röhrl] |
| 520 | 3 | |a Purpose: To find out if there is an association between ligament laxity measured intraoperatively and functional outcome 1year after total knee arthroplasty (TKA). Methods: Medial and lateral ligament laxities were measured intraoperatively in extension and in 90° of flexion in 108 patients [122 knees; median age 70 (range 42-83)years]. Mechanical axes were measured preoperatively and at 1-year follow-up. Outcome measures were the Knee Injury and Osteoarthritis Outcome Score (KOOS), the Knee Society Clinical Rating System, the Oxford Knee Score and patient satisfaction. The relationships between laxity and outcome scores were examined by median regression analyses. Results: Post-operative mechanical axis had a significant effect on the association between ligament laxity and KOOS. Therefore, the material was stratified on post-operative mechanical axis. In perfectly aligned and valgus-aligned TKAs, there was a negative correlation between medial laxity and all subscores in KOOS. The most important regression coefficient (β) was recorded for the effect of medial laxity in extension on activities of daily living (ADLs) (β=−7.32, p<0.001), sport/recreation (β=−6.9, p=0.017) and pain (β=−5.9, p=0.006), and for the effect of medial laxity in flexion on ADLs (β=−3.11, p=0.023) and sport/recreation (β=−4.18, p=0.042). Conclusions: In order to improve the functional results after TKA, orthopaedic surgeons should monitor ligament laxity and mechanical axis intraoperatively and avoid medial laxity more than 2mm in extension and 3mm in flexion in neutral and valgus-aligned knees. Level of evidence: II. | |
| 540 | |a The Author(s), 2014 | ||
| 690 | 7 | |a Total knee replacement |2 nationallicence | |
| 690 | 7 | |a Joint instability |2 nationallicence | |
| 690 | 7 | |a Ligament balancing |2 nationallicence | |
| 690 | 7 | |a Monitoring, intraoperative |2 nationallicence | |
| 690 | 7 | |a Knee osteoarthritis |2 nationallicence | |
| 690 | 7 | |a Reference values |2 nationallicence | |
| 700 | 1 | |a Aunan |D Eirik |u Department of Orthopaedic Surgery, Sykehuset Innlandet, Lillehammer, Norway |4 aut | |
| 700 | 1 | |a Kibsgård |D Thomas |u Orthopaedic Department, Oslo University Hospital, Oslo, Norway |4 aut | |
| 700 | 1 | |a Diep |D Lien |u Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway |4 aut | |
| 700 | 1 | |a Röhrl |D Stephan |u Orthopaedic Department, Oslo University Hospital, Oslo, Norway |4 aut | |
| 773 | 0 | |t Knee Surgery, Sports Traumatology, Arthroscopy |d Springer Berlin Heidelberg |g 23/6(2015-06-01), 1684-1692 |x 0942-2056 |q 23:6<1684 |1 2015 |2 23 |o 167 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00167-014-3108-0 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00167-014-3108-0 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Aunan |D Eirik |u Department of Orthopaedic Surgery, Sykehuset Innlandet, Lillehammer, Norway |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kibsgård |D Thomas |u Orthopaedic Department, Oslo University Hospital, Oslo, Norway |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Diep |D Lien |u Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Röhrl |D Stephan |u Orthopaedic Department, Oslo University Hospital, Oslo, Norway |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Knee Surgery, Sports Traumatology, Arthroscopy |d Springer Berlin Heidelberg |g 23/6(2015-06-01), 1684-1692 |x 0942-2056 |q 23:6<1684 |1 2015 |2 23 |o 167 | ||