[Functional orthoses in insufficiency of the anterior cruciate ligament. Biomechanical comparative studies in vivo and with a model].
We tested 4 functional braces for anterior cruciate ligament insufficiency (CTI, Lennox Hill, Ultratech, Proshifter) in vitro and in vivo. In vitro all braces limited the anterior drawer. The maximal anterior drawer was 3.08 mm (CTI), 5.16 mm (Ultratech), 6.25 mm (Lennox-Hill), 7.33 mm (Proshifter). In vivo anterior drawer was controlled at low shear loads (67 N). With high shear loads the anterior drawer was significantly reduced but the tibiofemoral translation was significantly reduced but the tibiofemoral translation was higher than in the uninjured knee. Without brace: 16.25 mm; CTI: 10.15 mm; Ultratech: 12.10 mm; Lennox-Hill: 9.80 mm; Proshifter: 12.75 mm;


METHODS
8.05 mm. The active anterior drawer was reduced but not normalized by all braces. Without brace: 8.75 mm; CTI: 5.35 mm; Ultratech: 5.6 mm; Lennox-Hill: 5.45 mm; Proshifter: 6.75 mm;


METHODS
4.25 mm. None of the braces tested could control the rotation efficiently.
Rupp
S
S
Orthopädische Universitätsklinik Homburg/Saar.
Lanta
P
P
Schulz
H
H
D016118:Anterior Cruciate Ligament / Q000503:physiopathology; D000070598:Anterior Cruciate Ligament Injuries; D001696:Biomechanical Phenomena; D001915:Braces; D004867:Equipment Design; D006801:Humans; D007593:Joint Instability / Q000503:physiopathology / Q000534:rehabilitation; D007718:Knee Injuries / Q000503:physiopathology / Q000534:rehabilitation*; D008953:Models, Anatomic; D016059:Range of Motion, Articular / Q000502:physiology
Funktionsorthesen bei Insuffizienz des vorderen Kreuzbandes. Biomechanische Vergleichsuntersuchungen in vivo und am Modell.