Quadriceps muscle contraction protects the anterior cruciate ligament during anterior tibial translation

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Deutscher übersetzter Titel:Die Kontraktion des M. quadriceps schuetzt das vordere Kreuzband beim Gleiten der Tibia nach vorne
Autor:Aune, A.K.; Cawley, P.W.; Ekeland, A.
Erschienen in:The American journal of sports medicine
Veröffentlicht:25 (1997), 2, S. 187-190, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0363-5465, 1552-3365
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Erfassungsnummer:PU199712208615
Quelle:BISp

Abstract des Autors

The proposed skiing injury mechanism that suggests a quadriceps muscle contraction can contribute to anterior cruciate ligament rupture was biomechanically investigated. The effect of quadriceps muscle force on a knee specimen loaded to anterior cruciate ligament failure during anterior tibial translation was studied in a human cadaveric model. In both knees from six donnors, average age 41 years (range, 31 to 65), the joint capsule and ligaments, except the anterior cruciate ligament, were cut. The quadriceps tendon, patella, patellar tendon, and menisci were left intact. One knee from each pair was randomly selected to undergo destructive testing of the anterior cruciate ligament by anterior tibial translation at a displacement rate of 30 mm/sec with a simultaneously applied 889 N quadriceps muscle force. The knee flexion during testing was 30ø. As a control, the contralateral knee was loaded correspondingly, but only 5 N of quadriceps muscle force was applied. The ultimate load for the knee to anterior cruciate ligament failure when tested with 889 N quadriceps muscle force was 22%+/-18% higher than that of knees tested with 5 N force. The linear stiffness increased by 43%+/-30%. These results did not support the speculation that a quadriceps muscle contraction contributes to anterior cruciate ligament failure. In this model, the quadriceps muscle force protected the anterior cruciate ligament from injury during anterior tibial translation. Verf.-Referat