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Popliteofibular ligament arcuate

The arcuate complex, a component of the posterolateral corner, is composed of the arcuate ligament, the fibular collateral ligament, and the popliteus muscle. Additional elements of the posterolateral corner include the fabellofibular ligament, popliteofibular ligament, and the posterolateral capsule. 4 Figure 4 The posterolateral ligamentous complex (also known as the arcuate ligamentous complex) of the knee is an important stabilizer and consists of a number of structures. Depending on the publication/definition more or less of the following structures are included 1-4: lateral (fibular) collateral ligament

popliteus works synergistically with the PCL to control external tibial rotation, varus, and posterior tibial translation popliteus and popliteofibular ligament function maximally in knee flexion to resist external rotation LCL is primary restraint to varus stress at 5° (55%) and 25° (69%) of knee flexio Deep: Arcuate ligament, coronary ligament, popliteus tendon, popliteofibular ligament, capsule. Medial Structures of Knee. Layer 1. Sartorius and fascia (patellar retinaculum) gracilis, semitendinosis, and saphenous nerve run between layer 1 and 2. Layer 2 The popliteofibular ligament originates at the musculotendinous junction of the popliteus. The popliteofibular ligament has two divisions (anterior and posterior) that seem to embrace the popliteus musculotendinous junction and insert distally into the posteromedial aspect of the fibular head popliteofibular ligament Other structures stated to be in the posterolateral ligamentous complex include the short and long heads tendons of the biceps femoris muscle, arcuate ligament, meniscopopliteal fascicles, and fabellofibular ligament

The most common pattern involves the fibular styloid process, at the attachment of the arcuate complex (ie, popliteofibular, arcuate, and fabellofibular ligaments) . In contrast, fractures resulting from avulsions of the LCL and biceps femoris tendon are larger and involve the lateral margin of the fibular head . Figure 15a The arcuate ligament attaches to the fibular styloid process with the fabellofibular ligament, lateral to the popliteofibular ligament (Figs. 1 and 2) (8). Ligament injury is made manifest by increased T2 signal or disruption on axial images (2). Figure 11 Open in figure viewer PowerPoin

The PLC has also been referred to as the arcuate complex, comprising the fibular collateral ligament (also called the lateral collateral ligament, LCL), arcuate ligament, popliteus muscle and tendon, popliteal fibular ligament, fabello-fibular ligament and posterolateral capsule - see table 1 for more detail 8 The arcuate ligament including anterior and posterior aspect of the popliteofibular ligament, popliteomeniscal fascicles, anterolateral ligament, fabellofibular ligament and the capsular arm of the short head of the biceps femoris. The popliteal aponeurosis to the lateral meniscus was kept intact. The popliteus muscle-tendon unit Even in cases without an evident fracture, MRI may reveal edema either localized to the fibular styloid process, suggesting injury to the popliteofibular, fabellofibular, or arcuate ligament, or more diffuse edema in the lateral aspect of the fibular head, suggesting injury to the fibular collateral ligament, biceps femoris tendon, or both Medial branch of arcuate ligament is seen joining the superior fascicle to form the roof of popliteal hiatus. Lateral branch of arcuate ligament contributes to posterior capsule. Popliteofibular ligament is formed by convergence of fascicles on the fibula. View chapter Purchase boo

Posterolateral Corner Injury - Radsourc

  1. 29. Laprade RF, Ly TV, Wentorf FA, Engebretsen L. The posterolateral attachments of the knee: a qualitative and quantitative morphologic analysis of the fibular collateral ligament, popliteus tendon, popliteofibular ligament, and lateral gastrocnemius tendon. Am J Sports Med 2003; 31:854 -860 [Google Scholar
  2. The popliteofibular ligament (PFL) is a static stabilizer of the posterolateral corner of the knee, preventing varus angulation, tibial rotation, and posterior translation. The PFL is anatomically variable, and there is no current review that outlines its prevalence rate and morphological variations
  3. ligament was found narrower in the cases with sheath-like bursa (vagina synovialis). The relation between both ends of popliteofibular ligament was as followed: the more anteriorly the fibular head attachment was located, the more anteriorly popliteofibular liga ment was attached to the popliteus tendon
  4. The popliteofibular ligament (PFL) is an important stabilizer of the knee, located in the deepest layer of its posterolateral corner (PLC) [1,2,3,4].Working with the popliteus (PT) and lateral collateral ligament (LCL), the PFL assists in preventing external tibial rotation and posterior translation, as well as varus angulation of the knee joint []

Posterolateral ligamentous complex Radiology Reference

Posterolateral Corner Injury - Knee & Sports - Orthobullet

Ligaments of the Knee - Recon - Orthobullet

Posterolateral Corner of the Knee: Current Concept

Huang and coworkers, in their MRI evaluation of 13 knees presenting with an arcuate sign on plain film, found that in 85% of the patients the avulsed bony fragment from the fibula originated either from the attachment of the popliteofibular ligament or the attachment of the popliteofibular, arcuate, and fabellofibular ligaments at the. ligament. Finally, the deep layer was described as being composed of the lateral capsule, lateral collat-eral ligament (LCL), coronary ligament (ie, lateral meniscotibial ligament), arcuate ligament, poplit-eus muscle-tendon unit, popliteofibular ligament (PFL), and fabellofibular ligament. Our understanding of the PLC has sinc

Posterolateral corner injury of the knee Radiology

Aspetar Sports Medicine Journal - Posterolateral corner

were investigated. The lateral collateral ligament, popliteus tendon, popliteofibular lig - ament, fabellofibular ligament, arcuate ligament, oblique popliteal ligament, posterior meniscofemoral ligament, and popliteal hiatus (including the popliteomeniscal liga-ments) were studied. The length, diameter, variations, course, and morphology of thes Initial study of the region grouped numerous structures together and referred to them as the arcuate ligament complex. Focus has now shifted to individual anatomic structures, including the lateral (ie, fibular) collateral ligament (LCL), the popliteus tendon complex, popliteofibular ligament (PFL), and the posterolateral capsule 4,5,13,14 Posterior Lateral Corner (PLC)(Popliteofibular ligament, arcuate ligament-fabellofibular ligament). The Role of the Meniscus: The menisci is essentially a pad between femur and the tibia which primarily distributes stress across the knee and absorbs force during weight bearing Arcuate ligament; Popliteofibular ligament; Popliteus muscle and tendon; These soft tissues work together to stabilize the PTFJ. The biceps femoris supports the joint anteriorly, the popliteus posteriorly, the lateral collateral ligament superiorly, and the interosseous membrane inferiorly The popliteofibular ligament is a component of this deep layer. Seebacher et al. noted three anatomic variations in their knee dissections. The arcuate ligament alone reinforced the posterolateral part of the capsule in 13% of the knees, the fabellofibular ligament alone reinforced it in 20%, and both reinforced it in 67%. Fig. 1:

The arcuate ligament is a Y-shaped condensation of collagen fibers that courses from the fibular head, over the popliteus to insert on the posterior capsule. ( See Figure 1.) Its medial limb joins the fibers of the oblique ligament and is firmly attached to the musculotendinous junction of the popliteus muscle The popliteofibular ligament originates near the popliteus musculotendinous junction and courses distally and laterally, attaching to the medial aspect of the fibular styloid process. 48 - 50 Anatomic studies have shown it to be present 93% to 100% of the time. 23, 24 It can be easily be differentiated from the arcuate ligament by the. Background Isolated injuries of the posterolateral corner of the knee are uncommon, accounting for <2% of all acute knee ligamentous injuries. However, 43% to 83% of ACL and PCL injures may have a concomitant injury of the PLC {ref: 18768708 ). Anatomy a The PLC was mainly composed of the fibular collateral ligament (FCL), popliteofibular ligament (PFL), arcuate popliteal ligament (APL), popliteus tendon (PT), fabellofibular ligament (FFL) and biceps femoris tendon (BT). These structures had origins or insertions located close to each other and collectively maintained the stability of the PLC The arcuate complex, a component of the posterolateral corner, is composed of the arcuate ligament, the fibular collateral ligament, and the popliteus muscle. Additional elements of the posterolateral corner include the fabellofibular ligament, popliteofibular ligament, and the posterolateral capsule

The arcuate ligament, shown in Figure 3, is a variably present structure found superficial to the popliteus tendon, and it helps prevent external rotation and varus angulation of the leg.6,10 However, the majority of sources indicate that the arcuate ligament has a minor role in providing stability to the posterolateral corner. 6,7,9,1 Lab 15B: Knee ligaments 3 - fabellafibular ligament, arcuate ligament / arcuate popliteal ligament, popliteofibular ligament, oblique popliteal ligament ligaments. Lab 16A: Ankle & Foot 1 - superior/inferior extensor retinaculum (transverse crural/ cruciate crural), peroneal retinacula, flexor retinaculum, inferior tibiofibular/lateral. Huang and coworkers, in their MRI evaluation of 13 knees presenting with an arcuate sign on plain film, found that in 85% of the patients the avulsed bony fragment from the fibula originated either from the attachment of the popliteofibular ligament or the attachment of the popliteofibular, arcuate, and fabellofibular ligaments at the.

ALL, ALC, and LET what is it all about? | The Anterior

- arcuate Ligament - fabellofibular lig. - popliteofibular lig. - popliteus - biceps femoris tendon (inserts on the styloid process and fibular head and helps prevent anterior movement of fibular head) - anatomic variation. A popliteofibular ligament originating at the popliteal musculotendinous junction distal to the popliteomeniscal fascicles and attaching to medial aspect of the fibular styloid 8. Figure 3: Popliteus tendon, or an Arcuate fracture—which is an avulsion of the fibular styloid 16 The arcuate popliteal ligament is an extracapsular ligament of the knee.It is Y-shaped and is attached to the posterior portion of the head of the fibula.From there it goes to its two insertions; the medial one goes over popliteus muscle and blends with the oblique popliteal ligament, the lateral one to the Lateral epicondyle of the femur and blends there with the lateral head of gastrocnemius. Layer 1 IT band biceps tendon Layer 2 Lateral retinaculum patellofemoral ligaments Layer 3 Joint capsule LCL arcuate ligament fabellofibular ligament popliteofibular ligament 46. Not a simple hinge joint Structures found in the posterolateral corner include the tibia, fibula, lateral femur, iliotibial band (IT band), the long and short heads of the biceps femoris tendon, the fibular (lateral) collateral ligament (FCL), the popliteus tendon, the popliteofibular ligament, the lateral gastrocnemius tendon, and th

Unraveling the Posterolateral Corner of the Knee

  1. Posterolateral corner tear includes popliteofibular ligament, grade 1 popliteus muscle strain, inferior meniscopopliteal fascicle tear and arcuate sprain. A radial tear in the anterior horn and a vertical tear in the posterior horn red-red zone of the medial meniscus and an oblique peripheral tear at the posterior body-horn junction of the.
  2. Injury of the posterolateral corner with partial-thickness tearing of the popliteofibular ligament and arcuate ligament with hemorrhage and edema extending into the popliteus hiatus and stress-related edema along the tip of the proximal fibula. Tear of the lower meniscopopliteal segment. No fibular fracture
  3. The static components are the popliteofibular ligament (PFL), popliteotibial and popliteomeniscal fascicles. The dynamic component is the popliteus muscle-tendon unit. The other structures comprising the PLC are the patellofibular ligament (popliteofibular ligament), posterolateral joint capsule, arcuate ligament, lateral coronary ligament and.

MRI of the posterolateral corner injury: A concise review

  1. This cadaveric study of 22 knees described the anatomy of the deeper structures of the posterolateral corner, the popliteus-tendon complex, arcuate ligament complex, the popliteofibular ligament, and the coronary ligament. Most variations occurred in the popliteofibular ligament; the variations and the different nomenclatures used in the literature for these structures make it difficult to.
  2. ation or in situations.
  3. The popliteofibular ligament (PFL) is an important stabilizer of the knee found within the posterolateral corner (PLC) of the joint. Injuries to the PLC can cause substantial patient morbidity. Accurate PFL visualization has been historically challenging, impeding injury diagnosis and treatment
  4. POSTGRAD ORTH Deiary Kader Posterolateral Complex Components: - Biceps, ITB, Popliteus, Popliteofibular ligament, arcuate ligament, LCL Function - Resists External and Varus rotation Mechanism of Injury - Direct blow to anteromedial tibia - Hyperextension/varus 24 arcuate 25
  5. The popliteofibular ligament: rediscovery of a key element in posterolateral stability. Am J Sport Med. 1996; 24 (3): 311-316. Search in Google Scholar. 9. Pasque C, Noyes FR, Gibbons M, Levy M, Grood E. The role of the popliteofibular ligament and the tendon of popliteus in providing stability in the human knee. J Bone Joint Surg. 2003; 85 (2.
  6. The Posteriolateral compartment (PLC) can be described as consisting of 5 structures (2 muscles and 3 ligaments); the lateral head of the gastrocnemius, the popliteus, the popliteofibular ligament, the lateral collateral ligament (LCL), and the arcuate ligament-fabellofibular ligament complex
  7. popliteofibular ligament in 94% of 115 knees. Both Wa-tanabe et al. and Hunziker et al.5 showed that different combinations among the lateral collateral, popliteofibular, arcuate, and fabellofibular ligaments can be encountered in different knees. Surgeons usually reconstruct the lat-eral collateral, the popliteofibular ligament, or both, de

The arcuate ligament hides partially the PFL and it blends with it. In its distal two-thirds the orientation of the fibres of the popliteofibular ligament is nearly vertical and similar to that of the LCL. In its proximal one-third it fuse with the popliteal tendon and is orientated more obliquely Fibular collateral ligament sprain and posterolateral corner tear involves rupture of popliteofibular ligament and arcuate sprain. Start Your Membership Today! Learn from our world renowned faculty. 35+ Mastery Video Courses 400+ Scrollable Cases and Reports 600+ CME Available Free Trial.

LaPrade RF, Tso A, Wentorf FA. Force measurements on the fibular collateral ligament, popliteofibular ligament, and popliteus tendon to applied loads. Am J Sports Med 2004; 32:1695-1701. Pasque C, Noyes FR, Gibbons M, Levy M, Grood E. The role of the popliteofibular ligament and the tendon of popliteus in providing stability in the human knee include biceps tenodesis [1,2], arcuate complex [3], pro-ximal bone block advancements [4], and extracapsular iliotibial band sling [5]. However, current techniques have shifted to more anatomical reconstruction of the three major functional components of the PLC: the lat-eral collateral ligament (LCL), popliteofibular ligament The fabellofibular ligament is an inconsistent ligament that arises from the fabella, an osseous or cartilaginous body adjacent to the gastrocnemius tendon, and inserts at the lateral base of the fibular head between the popliteofibular ligament and the arcuate ligament 88, 97

Popliteus: Assessment and rehabilitatio

The arcuate sign refers to an avulsed bone fragment related to the insertion of the posterolateral corner ligamentous structures (BFT, FCL, arcuate ligament, popliteofibular ligament). A bony arcuate injury may be more readily appreciated on plain radiographs than on MRI, but the latter best assesses the extent of associated ligamentous. The most notable example is that of the &dquo;short lateral ligament,&dquo; a term that has also been used to describe the fabellofibular ligament, the popliteofibular ligament, and the lateral limb of the posterior arcuate.12, 16, 23, 38 The popular description, attributed to Last,16 is that the fabellofibular ligament and the short lateral.

Arcuate fractures are often associated with cruciate ligament injuries.18 Due to their roles as both static and dynamic restraints, the popliteus and popliteofibular ligaments are vital components of any posterolateral reconstructive procedure. Directly posterior to the popliteofibular ligament courses the inferior lateral geniculate artery The pain may be accompanied by feelings of knee instability and giving way. a disruption in the fibres that frequently attach the rim of the posterior horn to the popliteus tendon, So then if one is corrected and the pain still persists, then it might be expected that the uncorrected issue was causing the pain B. Popliteofibular ligament . Surgical anatomy - posterior fibular head to popliteus tendon - 90% of people - quite consistent . Action - acts as check rein to popliteus - important resistance to varus rotation and posterior translation . MRI Anatomy . C. Posterolateral capsule + fabellofibular ligament + arcuate ligament . These are much more. Fibular head avulsion fractures are rare and are so-called the arcuate signal. Avulsion fracture of the iliotibial band and anterolateral ligament is known as a Segond fracture, and it is another rare entity. We describe the case of a 27-year-old woman who was hit by a car and suffered polytrauma, mainly suffering injuries to both knees. Radiographs of the knees showed a Segond fracture. The MRI, shown in figure 1, revealed an avulsion fracture of the semimembranosus, a torn ACL and a complex complete PLC injury comprising a distal biceps femoris tendon avulsion fracture, grade 3 LCL, arcuate ligament and popliteus muscle-tendon-ligament unit tear as wells as extensive injury to the peroneal nerve consisting of a longitudinal.

  1. arcuate ligament n. 1. A thickening of the fascia of the lumbar quadrate muscle, between the transverse process of the first lumbar vertebra and the twelfth rib on either side, that gives attachment to a portion of the diaphragm; lateral arcuate ligament. 2. A tendinous thickening of the fascia of the greater psoas muscle that extends from the body of.
  2. The PLC structures are best identified using the coronal and axial MRI planes. Some investigators have found superior visualization of the ligaments by the use of a coronal oblique plane with the popliteus tendon as the key structure (Fig. 2)
  3. Popliteofibular ligament. What ligament is just below the lateral geniculate vessels? lateral geniculate. What vessel is this? posterolateral corner. If you tear the LCL along with one of the smaller adjacent ligaments (popliteus, arcuate, popliteofibular ligament), this is what type of injury. iliotibial band
  4. Arcuate Ligament. Fibular Collat ligament . Popliteus tendon . Popliteofibular ligament fibers originate from the popliteal tendon and insert onto the fibula deep to the arcuate ligament and its fibers orientation are opposite from the arcuate ligament ; See Pictures - posterior & lateral; Details of Sectioning Studie
  5. the arcuate ligament complex, the oblique popliteal ligament, the ligaments of Wrisberg and Humphrey, and the PCL (Figure 2).25 Two or 3 (anteroinferior, posteroinferior, and posterosuperior) clearly delin-eated but highly variable popliteomeniscal fascicle attachments blend into the lateral meniscus to hel

The Posterolateral Corner of the Knee : American Journal

fabellofibular ligament is an inconsistent ligament that arises from the fabella, an osseous or cartilaginous body adjacent to the gastrocnemius tendon, and inserts at the lateral base of the fibular head between the popliteofibular ligament and the arcuate ligament (Fig. 3) The key anatomic structures of the lateral knee include the arcuate ligament, popliteus muscle belly and tendon, popliteofibular ligament, fabellofibular ligament, posterolateral capsule and LCL. The IT band and biceps tendon help provide dynamic posterolateral stabilization

Popliteal Ligament - an overview ScienceDirect Topic

Popliteofibular ligament Arcuate ligament Fabellofibular ligament. Muscles: Several muscles cross at the knee joint that can assist in resisting the motion. Primary resisters of knee extension: Biceps femurs, Semimembranosus, Semitendinosus Thirty human cadaveric knee specimens were investigated. The lateral collateral ligament, popliteus tendon, popliteofibular ligament, fabellofibular ligament, arcuate ligament, oblique popliteal ligament, posterior meniscofemoral ligament, and popliteal hiatus (including the popliteomeniscal ligaments) were studied - Popliteus tendon and popliteofibular ligament (PFL) - Fabellofibular ligament (FFL) - Lateral gastrocnemius muscles and tendon - fibular collateral ligament (FCL) and biceps femoris (BF) and their common insertion (conjoined tendon). * Arcuate complex: Group of ligaments with common attachment to tip of fibular styloid: Arcuate, PFL, FF

Evidence-Based Clinical Anatomy of the Popliteofibular

The popliteofibular ligament: a cadaveric ultrasound study

The arcuate popliteal ligament is located in close proximity to the fibular collateral ligament, the oblique popliteal ligament, and the fibula. Last medically reviewed on January 21, 2018 7- Oblique popliteal ligament (OPL): arises from semimembranosus fascicles and the lateral tibial condyle, joining the arcuate ligament at its femoral insertion (Fig. 4 on page 9). 8- Fabellofibular ligament (FFL): originates at fabela and is inserted on the styloid process (Fig. 9 on page 15, Fig. 11 on page 17, Fig. 12 on page 18)

An Unusual Case of Lateral Knee Calcific Tendonitis within

tendon, patellofemoral ligament, patellar retinaculum, common peroneal nerve, lateral collateral ligament (LCL), fabellofibular ligament, coronary ligament, arcuate ligament, popliteofibular ligament, popliteus tendon, and lateral joint capsule (Figure 1). The primary static stabilizer of the lateral knee is the LCL and rarely constitutes a stability. These structures have been termed the arcuate ligament complex. 4 The latter acts as a unit and resists excessive posterior translation, varus, and external rotation. Static components include the lateral collateral ligament, the popliteofibular ligament, the arcuate liga - ment complex, the fabellofibular ligament, and th 2. Arcuate complex avulsion fracture - Arcuate complex is the group of muscles and ligaments responsible for the stability of posterolateral knee. Its constituents include the FCL, biceps femoris, popliteus muscle and tendon, popliteofibular ligaments, fabellofibular and arcuate ligaments, and lateral gastrocnemius muscl Finally, a hyperechoic extension from the popliteus tendon at the joint line may be seen, which attaches to the fibular styloid, called the popliteofibular ligament (see Fig. 7-16B). 16 Other supporting structures of the posterolateral corner, such as the arcuate ligament and the possible fabellofibular ligament, are difficult to identify

Anatomy, biomechanics, and physical findings in

Tearing of the popliteofibular ligament (PFL) - The PFL is not as commonly mentioned as other main ligament of the knee. However, it is an important ligament that connects the popliteus muscle at the musculotendinous junction to the posterior and medial portion of the fibular styloid. Tearing of the fabellofibular ligament (arcuate. 3D-SPACE MRI of operated group revealed lesions in popliteofibular ligament in 15(75%), fabellofibular ligament in 3(15%), arcuate ligament in 9(45%), popliteomeniscal fascicle in 5(25%). Conservative-management group showed lesions in 25(100%), 15(60%), 16(64%), 13(52%), respectively condyle), the arcuate ligament (a strong fibrous plate running from the dorsal joint capsule at the level of the femur inferolaterally over the popliteus muscle to the fibular head), the popliteofibular ligament (running vertically from the popliteal tendon to the fibular head) and the posterolateral joint capsule.The arcuate an

PPT - Posterolateral Corner of the Knee: MRI, AnatomyLigament Injury Specialist in Aurangabad | DrLigaments of the Knee - Recon - OrthobulletsThe Knee | Musculoskeletal KeyPosterolateral Corner Injury - RadsourceKnee Ligaments and Other Knee Stabilizers | Bone and Spine

It usually includes some combination of injuries to the popliteus tendon, popliteofibular ligament and the arcuate ligament. It is quite often injured in conjunction with the posterior cruciate ligament and or the lateral collateral ligament, and with less frequency, the anterior cruciate ligament, lateral hamstring (biceps femoris) and. The arcuate sign is used to describe an avulsed bone fragment related to the insertion site of the arcuate complex, which consists of the fabellofibular, popliteofibular, and arcuate ligaments7. The nerve is susceptible to injury because of its fixed attachment in the region o The PLC is not consistently defined in the orthopaedic-radiologic literature but most anatomic dissections and biomechanical studies include the popliteal tendon, the lateral collateral ligament, the popliteofibular ligament, the posterolateral capsule, the arcuate ligament and the fabellofibular ligament [1-4] Meniscofibular Ligament: Morphology and Functional Significance of a Relatively Unknown Anatomical Structure 2012 / K. Natsis, G. Paraskevas, N. Anastasopoulos, T. Papamitsou, A. Sioga Academic research paper on topic A Rare Case of Traumatic Bilateral Fibular Head Fracture Posterolateral corner injury, with tear of the popliteal fibular ligament, posterolateral and posteromedial meniscocapsular rupture with hemorrhage, lateral meniscopopliteal complex tear, and partial tear of the popliteus tendon at the origin. Oblique tear of the posterior body of the medial meniscus measuring 2-2.5cm in length Arcuate complex - Lateral collateral ligament Static restraint to varus Static restraint to external rotation of the tibia Arcuate ligament - static -Variable - Reinforces posterolateral capsule Popliteus muscle - dynamic - Reinforces posterior lateral capsule - Internally rotates tibia Popliteofibular ligament