Anterior cruciate ligament
The anterior cruciate ligament (ACL) is one of the four major ligaments of the human knee. In the quadruped stifle (analogous to the knee), based on its anatomical position, it is referred to as the cranial cruciate ligament.[1]
The ACL originates from deep within the notch of the distal femur. Its proximal fibers fan out along the medial wall of the lateral femoral condyle. There are two bundles of the ACL—the anteromedial and the posterolateral, named according to where the bundles insert into the tibial plateau. The ACL attaches in front of the intercondyloid eminence of the tibia, being blended with the anterior horn of the lateral meniscus. These attachments allow it to resist anterior translation of the tibia, in relation to the femur.
Anterior cruciate ligament injury is the most common knee ligament injury, especially in athletes.
Additional images
Right knee-joint, from the front, showing interior ligaments.
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Left knee-joint from behind, showing interior ligaments.
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Head of right tibia seen from above, showing menisci and attachments of ligaments.
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Capsule of right knee-joint (distended). Posterior aspect.
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See also
- Lateral collateral ligament
- Medial collateral ligament
- Posterior cruciate ligament
- Anterior drawer test
- Anterior cruciate ligament reconstruction
References
- ↑ [www.melbvet.com.au/pdf/cruciate-disease.pdf "Canine Cranial Cruciate Ligament Disease"] (pdf). Melbourne Veterinary Referral Centre. pp. 1–2. www.melbvet.com.au/pdf/cruciate-disease.pdf. Retrieved September 8, 2009.
External links
Joints and ligaments of lower limbs (TA A03.6, GA 3.333) |
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Coxal/hip |
femoral (iliofemoral, pubofemoral, ischiofemoral) · head of femur · transverse acetabular · acetabular labrum · capsule · zona orbicularis
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Knee-joint |
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Capsule · Anterior meniscofemoral ligament · Posterior meniscofemoral ligament
extracapsular: popliteal (oblique, arcuate) · collateral (medial/tibial, fibular/lateral)
intracapsular: cruciate (anterior, posterior) · menisci (medial, lateral) · transverse
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Patellar ligament · Infrapatellar fat pad
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Tibiofibular |
Superior tibiofibular
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anterior of the head of the fibula · posterior of the head of the fibula
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Inferior tibiofibular
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Anterior tibiofibular · Posterior tibiofibular · Interosseous membrane of leg
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Joints of foot |
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medial: medial of talocrural joint/deltoid (anterior tibiotalar, posterior tibiotalar, tibiocalcaneal, tibionavicular)
lateral: lateral collateral of ankle joint (anterior talofibular, posterior talofibular, calcaneofibular)
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Subtalar/talocalcaneal
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anterior/posterior · lateral/medial · interosseous
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Transverse tarsal
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Talocalcaneonavicular
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dorsal talonavicular · plantar calcaneonavicular/spring · bifurcated (calcaneonavicular)
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Calcaneocuboid
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dorsal calcaneocuboid · long plantar · plantar calcaneocuboid · bifurcated (calcaneocuboid)
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Distal intertarsal
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Cuneonavicular
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plantar · dorsal
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Cuboideonavicular
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plantar · dorsal
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Intercuneiform
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plantar · dorsal · interosseous
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Other
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Tarsometatarsal/Lisfranc
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plantar · dorsal
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Intermetatarsal/metatarsal
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plantar · dorsal · interosseous · superficial transverse · deep transverse
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Metatarsophalangeal
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plantar · collateral
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Interphalangeal
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plantar · collateral
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Arches
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Longitudinal · Transverse
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noco(arth/defr/back/soft)/cong, sysi/, injr
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