[Experimental results of biomechanical strength of the meniscus suture in the area of zone II].
The biomechanics of the sutured meniscus were studied in an experimental in vitro assembly. The characteristics of load transmission and changes in radial tensile strength were analyzed under static load conditions. With the knee joint in extension the longitudinally ruptured meniscus presents only slight changes with regard to load transmission and radial stretch. Increased gaping of the anterior horn accompanied by a compensatory radial compression in the posterior segment occurs with flexion and contralateral tibial rotation. Repair of the meniscus results in partial compensation of these phenomena, although both changes are still reproducible to a lesser extent. A vertically applied suture provides more mechanical stability than horizontal fixation. Static weight bearing is of lesser significance in producing separation of the reconstructed meniscus. Postoperative care following meniscus reconstruction must include immobilization, although early weight bearing can be permitted.
Raunest
J
J
Abteilung für Allgemeine und Unfallchirurgie, Heinrich-Heine-Universität Düsseldorf.
Derra
E
E
D001696:Biomechanical Phenomena; D006801:Humans; D008592:Menisci, Tibial / Q000503:physiopathology; D013536:Suture Techniques; D000070600:Tibial Meniscus Injuries; D014945:Wound Healing / Q000502:physiology*
Experimentelle Ergebnisse zur biomechanischen Belastbarkeit der Meniskusnaht im Bereich der Zone II.