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Region Hovedstaden - en del af Københavns Universitetshospital

Relationship between outcome scores and knee laxity following total knee arthroplasty: a systematic review

Publikation: Bidrag til tidsskriftReviewForskningpeer review

  1. Reliability of stress radiography in the assessment of coronal laxity following total knee arthroplasty

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Failure modes of patellofemoral arthroplasty-registries vs. clinical studies: a systematic review

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Mismatch 'never events' in hip and knee arthroplasty: a cohort and intervention study

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Patellofemoral Arthroplasty

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Vis graf over relationer

Background and purpose - Instability following primary total knee arthroplasty (TKA) is, according to all national registries, one of the major failure mechanisms leading to revision surgery. However, the range of soft-tissue laxity that favors both pain relief and optimal knee function following TKA remains unclear. We reviewed current evidence on the relationship between instrumented knee laxity measured postoperatively and outcome scores following primary TKA. Patients and methods - We conducted a systematic search of PubMed, Embase, and Cochrane databases to identify relevant studies, which were cross-referenced using Web of Science. Results - 14 eligible studies were identified; all were methodologically similar. Both sagittal and coronal laxity measurement were reported; 6 studies reported on measurement in both extension and flexion. In knee extension from 0° to 30° none of 11 studies could establish statistically significant association between laxity and outcome scores. In flexion from 60° to 90° 6 of 9 studies found statistically significant association. Favorable results were reported for posterior cruciate retaining (CR) knees with sagittal laxity between 5 and 10 mm at 75-80° and for knees with medial coronal laxity below 4° in 80-90° of flexion. Interpretation - In order to improve outcome following TKA careful measuring and adjusting of ligament laxity intraoperatively seems important. Future studies using newer outcome scores supplemented by performance-based scores may complement current evidence.

TidsskriftActa Orthopaedica
Udgave nummer1
Sider (fra-til)46-52
Antal sider7
StatusUdgivet - feb. 2019

ID: 59713677