Multiplanar knee laxity and perceived function during activities of daily living and sport
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| Deutscher übersetzter Titel: | Multiplanare Kinematik des Kniegelenks und die wahrgenommene Funktion während Aktivitäten des täglichen Lebens und des Sports |
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| Autor: | Taylor, Jeffrey B.; Wang, Hsin-Min; Schmitz, Randy J.; Rhea, Christopher K.; Ross, Scott E.; Shultz, Sandra J. |
| Erschienen in: | Journal of athletic training |
| Veröffentlicht: | 50 (2015), 11, S. 1199-1206, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
| Sprache: | Englisch |
| ISSN: | 1062-6050, 0160-8320, 1938-162X |
| DOI: | 10.4085/1062-6050-50.11.10 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201604002580 |
| Quelle: | BISp |
Abstract des Autors
Context: Greater knee-joint laxity may lead to a higher risk of knee injury, yet it is unknown whether results of self-reported outcome measures are associated with distinct knee-laxity profiles.
Objective: To identify the extent to which multiplanar knee laxity is associated with patient-reported outcomes of knee function in healthy individuals during activities of daily living and sport.
Design: Descriptive laboratory study.
Setting: University research laboratory.
Patients or Other Participants: Forty healthy individuals (20 men, 20 women; age = 18–31 years).
Main Outcome Measure(s): All participants were given the Knee Outcome Survey Activities of Daily Living Scale (KOS-ADL) and Sports Activities Scale (KOS-SAS) and subsequently measured for knee laxity in the sagittal, frontal, and transverse planes. Separate backward stepwise regression analyses were performed to determine the extent to which multiplanar knee-laxity values predicted KOS-ADL and KOS-SAS scores within each sex.
Results: Women had higher magnitudes of anterior, posterior (POSTLAX), varus (VARLAX), valgus (VALLAX), and internal-rotation laxity than men and trended toward greater external rotation (ERLAX) laxity. Greater POSTLAX, less VALLAX, and greater VARLAX was associated with lower KOS-ADL scores (KOS-ADL = −4.8 [POSTLAX], + 3.3 [VALLAX] − 2.2 [VARLAX] + 100.4, R2 = 0.74, P < .001) and greater POSTLAX and less VALLAX was associated with lower KOS-SAS scores (KOS-SAS = −8.2 [POSTLAX], + 3.6 [VALLAX] + 96.4, R2 = 0.67, P < .001) in women. In men, greater POSTLAX and less ERLAX was associated with lower KOS-SAS scores (KOS-ADL = −4.7 [POSTLAX], + 0.9 [ERLAX] + 96.4, R2 = 0.49, P < .001).
Conclusions: The combination of POSTLAX with less relative VALLAX (women) or less relative ERLAX (men) was a strong predictor of KOS scores, suggesting that a self-reported outcome measure may be beneficial as part of a preparticipation screening battery to identify those with perceived functional deficits associated with their knee laxity.