cruciate ligaments


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cru·ci·ate lig·a·ments

(krū'shē-āt lig'ă-mĕnts)
Major ligaments that crisscross the knee in the anteroposterior direction, providing stability in that plane.
See also: Lachman test

cruciate ligaments

two intracapsular ligaments of the knee, forming an X-shape, linking the femur to the tibia, strong but not elastic, which are crucial for the stability of the knee joint. The anterior cruciate ligament runs upwards, backwards and laterally from the front of the upper end of the tibia to attach to the medial aspect of the lateral femoral condyle; it limits forward movement of the tibia relative to the femur and tightens with extension at the knee. It is short and thick with a poor blood supply. The posterior cruciate ligament arises from the posterior intercondylar area of the tibia and runs forwards, upwards and medially to attach to the anterolateral surface of the medial femoral condyle. It limits backwards movement of the tibia relative to the femur and tightens with flexion at the knee. cruciate ligament injury (especially anterior) can result in a rapid accumulation of blood in the knee joint (haemarthrosis) and is often associated with damage to other structures, especially the medial meniscus. Treatment depends on the sport involved, the degree of instability and of other damage. In sportspeople complete rupture usually requires surgical repair, resulting in a lengthy (up to 9 months) rehabilitation programme, before return to sport. Disruption of only the posterior ligament may result in significant instability but may be hard to diagnose clinically. See also drawer sign, Lachman test.

cruciate ligaments

paired X-shaped intra-articular ligaments linking femur and tibia within the knee joint, passing from the tibial intercondylar area to the distal femur intercondylar fossa; both ligaments are relatively tensed throughout knee movement
  • anterior cruciate ligament passes upwards and backwards from anterior part of tibial intercondylar area to posterior part of medial surface of femoral lateral condyle; action: prevention of posterior slip of femur on tibial platform; becomes increasingly tense towards end of knee extension, allowing medial femoral condyle to continue to rotate on tibial platform, to lock knee joint during extension

  • posterior cruciate ligament passes upwards and forwards from posterior part of tibial intercondylar area to anterior part of lateral surface of femoral medial condyle; it receives slips from posterior part of lateral meniscus; action: prevention of anterior slip of femur on tibial platform

References in periodicals archive ?
At least he hasn't suffered an anterior cruciate ligament injury after he limped off against Palace.
We may observe meniscus rupture and cartilage damage together with anterior cruciate ligament ruptures.
The club added in a statement: "Today's MRI scans on John Terry's right knee thankfully show no significant damage to the cruciate ligaments.
An injury we often see is rupture of the cruciate ligament in the stifle (knee) joint.
76% rise in pet insurance claims for cruciate ligament damage between January and June of 2010.
Hull's pounds 5million record buy feared he had suffered another season-ending cruciate ligament tear when carried off on Saturday.
The cruciate ligaments of the knee: Correlation between MR appearance and gross and histological findings in cadaveric specimens.
With the retention of the anterior and posterior cruciate ligaments, the Journey Deuce knee system addresses an unmet need in the market for the active, informed patient who may be concerned about potential reduced knee function and mobility with a total knee," said Joseph DeVivo, president of Smith & Nephew Orthopaedic Reconstruction, adding that the new knee system "provides a bone-conserving alternative to a total knee replacement, while allowing for earlier intervention and preserving all future surgery options for patients, including a total knee replacement.
i recently sustained a knee injury when playing football, and went to see a physiotherapist who suspects that I may have torn a cruciate ligament at some point.
The Dundee defender had a scan last week which confirmed some damage to his cruciate ligament but the persistent swelling, due to internal bleeding, means this week's exploratory operation will reveal the full extent.
The 32-year-old defender damaged his cruciate ligaments against Real Madrid two years ago and was never able to win back his place in the Alaves defence.
We thought it might have been his cruciate ligaments but he been to see the physio at Port Vale, who is a good friend, and those fears have been allayed.