Carl-Joachim Wirth

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This study compares the effects of two different techniques of medial patellofemoral ligament (MPFL) reconstruction, and proximal soft tissue realignment on patellar stabilization against lateral dislocation. Eight human cadaver knee specimens with no radiological pathomorpholgy on a straight lateral view, contributing to patellofemoral instability, were(More)
This biomechanical study was performed to measure tissue pressure in the infrapatellar fat pad and the volume changes of the anterior knee compartment during knee flexion–extension motion. Knee motion from 120° of flexion to full extension was simulated on ten fresh frozen human knee specimens (six from males, four from females, average age 44 years) using(More)
An edema of the infrapatellar fat pad following knee arthroscopy or in case of chronic anterior knee pain syndrome is suspected to increase the patellofemoral pressure by a modification of the patellofemoral glide mechanism. The study was performed to evaluate this hypothesis. Isokinetic knee extension from 120° of flexion to full extension was simulated on(More)
BACKGROUND Surgical reconstruction of the medial patellofemoral ligament used to stabilize the patella against lateral dislocation may concomitantly produce alteration of the patellofemoral contact pressure distribution. Two different tendon transfer techniques of reconstructing the medial patellofemoral ligament, one dynamic and one static, as well as a(More)
OBJECTIVE Stabilization of the patella by reconstruction of the medial patellofemoral ligament. INDICATIONS Chronic recurrent lateral dislocation or subluxation of the patella. Habitual lateral dislocation of the patella. CONTRAINDICATIONS Primary dislocation of the patella. Genu valgum with a Q-angle > 15 degrees . Status following semitendinosus(More)
PURPOSE Two different operative techniques for stabilizing the patella against lateral displacement movement were investigated. TYPE OF STUDY In vitro experimental study. METHODS Five human cadaver knee specimens with a normal Q-angle were mounted in a kinematic knee simulator and investigated under simulated isokinetic extension motions. Patellar(More)
Rekonstruktion des medialen patellofemoralen Ligaments zur Stabilisierung der Patella. Chronisch-rezidivierende laterale Patellaluxation oder -subluxation. Habituelle laterale Patellaluxation. Erstluxation der Patella. Genu valgum mit Q-Winkel > 15°. Z.n. Ersatz des vorderen Kreuzbandes mit Semitendinosussehne. Gelenkinfektionen. Neurogene Instabilität,(More)
The present study analyses the exclusive use of absorbable suture material (Vicryl(®), Ethicon, Germany) in the fixation of transposed bone segments in craniofacial surgery without modification of the osteotomy design. Among 129 children up to 24 months of age, osteosynthesis was conducted exclusively with Vicryl(®) sutures. The stability of postoperative(More)
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