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Instability of knees with ligament lesions: Cadaver studies of the anterior cruciate ligament
- Source :
- Acta Orthopaedica Scandinavica. 56:426-429
- Publication Year :
- 1985
- Publisher :
- Medical Journals Sweden AB, 1985.
-
Abstract
- We studied the importance of the two parts of the anterior cruciate ligament (ACL), the medial collateral ligament (MCL), and the posterior medial capsule (PMC) to translatory and spontaneous axial rotatory instability in 15 osteoligamentous knee preparations. Instability was recorded continuously from zero to 90 degrees of flexion with application of a constant force to the tibia. Isolated cutting of the ACL caused a moderate anterior translatory movement, which increased if the MCL was also cut. Transection also of the PMC resulted in an even larger range of anterior translatory movement. Combined lesions to the MCL and the PMC and the posterolateral part of the ACL did not cause such instability provided the anteromedial part of the ACL was intact. Application of a valgus moment to specimens with injured ACL and medial structures induced a spontaneous anteromedial subluxation of the tibia in a semiflexed position. When flexion was increased to 70-80 degrees, a sudden reduction was observed.
- Subjects :
- Joint Instability
Knee Joint
Rotation
Anterior cruciate ligament
medicine.medical_treatment
In Vitro Techniques
Cadaver
medicine
Humans
Orthopedics and Sports Medicine
Tibia
Reduction (orthopedic surgery)
Subluxation
Medial collateral ligament
biology
business.industry
Anatomy
musculoskeletal system
biology.organism_classification
medicine.disease
Valgus
surgical procedures, operative
medicine.anatomical_structure
Ligaments, Articular
Ligament
Surgery
business
human activities
Subjects
Details
- ISSN :
- 00016470
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Acta Orthopaedica Scandinavica
- Accession number :
- edsair.doi.dedup.....091b13d47047b1e3eee9c0ca84dea93c