455 results match your criteria Knee Collateral Ligament Injuries MRI

Posterior oblique ligament of the knee: state of the art.

EFORT Open Rev 2021 May 4;6(5):364-371. Epub 2021 May 4.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Thessalia, University Hospital of Larissa, Larissa, Greece.

The posterior oblique ligament (POL) is the predominant ligamentous structure on the posterior medial corner of the knee joint. A thorough understanding of the anatomy, biomechanics, diagnosis, treatment and rehabilitation of POL injuries will aid orthopaedic surgeons in the management of these injuries.The resulting rotational instability, in addition to valgus laxity, may not be tolerated by athletes participating in pivoting sports. Read More

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biomechanical evaluations of suture anchors for repairing grade 3 superficial medial collateral ligament injury in a porcine model.

J Orthop Surg (Hong Kong) 2021 May-Aug;29(2):23094990211021536

Department of Orthopaedic Surgery, School of Medicine, Jichi Medical University, Shimotsuke, Japan.

Purpose: To clarify the biomechanical and radiological outcomes of superficial medial collateral ligament (sMCL) repair using suture anchors in a large animal model.

Methods: The right sMCLs of nine male castrated pigs was completely detached at the femoral attachment. sMCL repair surgery was performed using two suture anchors. Read More

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Multiple Ligament Knee Reconstructions.

Arthroscopy 2021 05;37(5):1378-1380

Twin Cities Orthopedics, Edina-Crosstown. Edina, Minnesota, U.S.A.. Electronic address:

Patients with multiligament knee injuries require a thorough examination (Lachman, posterior-drawer, varus, valgus, and rotational testing). Diagnoses are confirmed with magnetic resonance imaging as well as stress radiographs (posterior, varus, and valgus) when indicated. Multiple systematic reviews have reported that early (<3 weeks after injury) single-stage surgery and early knee motion improves patient-reported outcomes. Read More

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Measurement of distance between femoral insertion of fibular collateral ligament and popliteus tendon: A magnetic resonance imaging based study.

J Clin Orthop Trauma 2021 Jun 17;17:139-142. Epub 2021 Mar 17.

Department of Orthopaedics, Atal Bihari Vajpayee Institute of Medical Sciences, Dr Ram Manohar Lohia Hospital, New Delhi, 110001, India.

Background: Fibular collateral ligament (FCL), popliteus tendon (PT) and popliteofibular ligament are key components of posterolateral corner (PLC) of the knee. These structures play a vital role in stabilizing the knee against varus and external rotation. The Anatomical location of these structures should be well understood for adequate reconstruction of PLC injuries. Read More

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Magnetic resonance imaging of medial collateral ligament avulsion fractures of the knee in children: a potentially underestimated injury.

Pediatr Radiol 2021 Mar 30. Epub 2021 Mar 30.

Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.

Background: Literature regarding medial collateral ligament (MCL) injuries is focused on adults with superficial MCL disruptions. However, children follow different injury patterns, with avulsion fractures at ligament attachment sites occurring commonly. Such avulsions have not been characterized for pediatric MCL injuries. Read More

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MRI-Detected Knee Ligament Sprains and Associated Internal Derangement in Athletes Competing at the Rio de Janeiro 2016 Summer Olympics.

Open Access J Sports Med 2021 8;12:23-32. Epub 2021 Mar 8.

Department of Radiology, Boston University School of Medicine, Boston, MA, USA.

Purpose: Describe the frequency and severity of knee ligament sprains diagnosed by MRI in athletes participating at the 2016 Summer Olympic Games, their association with certain sports and assess correlations with additional knee structural injury.

Patients And Methods: All knee MRIs performed in the Olympic Village and polyclinics during the 2016 Olympics were retrospectively, blindly reviewed for ligament sprains and associated knee injuries. In addition to the absence or presence of these abnormalities, athletes were stratified by age, gender and sport. Read More

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High incidence of superficial and deep medial collateral ligament injuries in 'isolated' anterior cruciate ligament ruptures: a long overlooked injury.

Knee Surg Sports Traumatol Arthrosc 2021 Mar 4. Epub 2021 Mar 4.

Fortius Clinic, 17 Fitzhardinge St, London, W1H 6EQ, UK.

Purpose: In anterior cruciate ligament (ACL) injuries, concomitant damage to peripheral soft tissues is associated with increased rotatory instability of the knee. The purpose of this study was to investigate the incidence and patterns of medial collateral ligament complex injuries in patients with clinically 'isolated' ACL ruptures.

Methods: Patients who underwent ACL reconstruction for complete 'presumed isolated' ACL rupture between 2015 and 2019 were retrospectively included in this study. Read More

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Coronal Lateral Collateral Ligament Sign: A Novel Magnetic Resonance Imaging Sign for Identifying Anterior Cruciate Ligament-Deficient Knees in Adolescents and Summarizing the Extent of Anterior Tibial Translation and Femorotibial Internal Rotation.

Am J Sports Med 2021 03 22;49(4):928-934. Epub 2021 Feb 22.

Division of Orthopaedic Surgery, Rady Children's Hospital, San Diego, California, USA.

Background: Incompetence of the anterior cruciate ligament (ACL) confers knee laxity in the sagittal and axial planes that is measurable with clinical examination and diagnostic imaging.

Hypothesis: An ACL-deficient knee will produce a more vertical orientation of the lateral collateral ligament (LCL), allowing for the entire length of the LCL to be visualized on a single coronal slice (coronal LCL sign) on magnetic resonance imaging.

Study Design: Cohort study (diagnosis); Level of evidence, 3. Read More

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Predictive Value of the Magnetic Resonance Imaging-Based Coronal Lateral Collateral Ligament Sign on Adolescent Anterior Cruciate Ligament Reconstruction Graft Failure.

Am J Sports Med 2021 03 22;49(4):935-940. Epub 2021 Feb 22.

Division of Orthopaedic Surgery, Rady Children's Hospital, San Diego, California, USA.

Background: The coronal lateral collateral ligament (LCL) sign is the presence of the full length of the LCL visualized on a single coronal magnetic resonance imaging (MRI) slice at the posterolateral corner of the knee. The coronal LCL sign has been shown to be associated with elevated measures of anterior tibial translation and internal rotation in the setting of anterior cruciate ligament (ACL) tear.

Hypothesis: The coronal LCL sign (with greater anterior translation, internal rotation, and posterior slope of the tibia) will indicate a greater risk for graft failure after ACL reconstructive surgery. Read More

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The accuracy of MRI in the diagnosis of anterior cruciate ligament injury.

Ann Transl Med 2020 Dec;8(24):1657

Department of Gynaecology, Shijiazhuang Third Hospital, Shijiazhuang, China.

Background: Anterior cruciate ligament (ACL) injury can cause damage to the meniscus and articular cartilage, and may even lead to osteoarthritis. This study aimed to analyze the accuracy and feasibility of magnetic resonance imaging (MRI) imaging signs in the diagnosis of knee joint ACL injury.

Methods: A total of 78 patients admitted to our hospital from June 2018 to October 2019 with highly suspected ACL injury were selected for this prospective study. Read More

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December 2020

Evaluation of 3-Dimensional Magnetic Resonance Imaging (3D MRI) in Diagnosing Anterior Talofibular Ligament Injury.

Med Sci Monit 2021 Jan 16;27:e927920. Epub 2021 Jan 16.

Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland).

BACKGROUND It is challenging to entirely show the anterior talofibular ligament (ATFL) and accurately diagnose ATFL injury with traditional 2-dimensional (2D) magnetic resonance imaging (MRI). With the introduction of 3.0T MRI, a 3-dimensional (3D) MRI sequence can achieve images with high spatial resolution. Read More

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January 2021

Stress Radiographs for Ligamentous Knee Injuries.

Arthroscopy 2021 01;37(1):15-16

Norwegian School of Sports Sciences, Oslo Sports Trauma Research Center, Oslo, Norway; University of Oslo, Ulleval Hospital, Oslo, Norway.

Stress radiographs can provide an objective, quantifiable assessment of ligamentous knee injury. Commonly utilized techniques include varus, valgus, and posterior stress radiographs and can be used to augment findings on physical examination and magnetic resonance imaging. Both in vitro and in vivo studies have demonstrated reliability and validity of stress radiographs for diagnosing isolated and multiple ligament knee injuries. Read More

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January 2021

[Diagnostic value of a 3D-SPACE-sequence with compressed sensing technology for the knee joint].

Radiologe 2021 Feb 21;61(2):203-212. Epub 2020 Dec 21.

Radiologisches Zentrum für Diagnostik und Therapie München, Oberföhringer Straße 2, 81679, München, Deutschland.

Backround: SPACE (3D fast spin echo acquisition) sequences require long scan times for three-dimensional assessment of acute injury of the knee joint and are flawed due to geometric blurring. Their implementation into routine diagnostic imaging was not feasible until recently.

Objectives: By comparing conventional MRI (magnetic resonance imaging) sequences to 3D (three-dimensional) sequences, it was investigated whether the compressed sensing (CS) technique is inferior to the established 2D sequences with shorter examination times. Read More

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February 2021

Timing of magnetic resonance imaging affects the accuracy and interobserver agreement of anterolateral ligament tears detection in anterior cruciate ligament deficient knees.

Knee Surg Relat Res 2020 Nov 27;32(1):64. Epub 2020 Nov 27.

Department of Orthopedic Surgery, Changi General Hospital, Singapore, Singapore.

Purpose: We aimed to identify the anterolateral ligament (ALL) tears in anterior cruciate ligament (ACL)-deficient knees using standard 1.5-Tesla magnetic resonance imaging (MRI).

Methods: We included all patients who underwent primary ACL reconstruction at our center between 2012 and 2015. Read More

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November 2020

Anterior Cruciate Ligament Injury in Association With Other Knee Injuries in King Abdulaziz University Hospital, Saudi Arabia.

Cureus 2020 Sep 4;12(9):e10240. Epub 2020 Sep 4.

Orthopaedic Surgery, College of Medicine, King Abdulaziz University, Jeddah, SAU.

Purpose The purpose of this study was to study the association of anterior cruciate ligament (ACL) injury with meniscal, collateral ligament, and bone injuries using magnetic resonance imaging (MRI) for clinical correlation during ACL repair. Methods This was a retrospective cohort study conducted on 136 patients diagnosed with ACL injury by MRI at King Abdulaziz University Hospital (KAUH) between September 2010 and September 2018. Results The medial meniscus was injured in approximately half (49. Read More

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September 2020

The Stieda fracture revisited.

Skeletal Radiol 2021 May 9;50(5):945-953. Epub 2020 Oct 9.

Department of Radiology, Stanford University Medical Center, Grant Building S062A, 300 Pasteur Drive, Stanford, CA, 94305, USA.

Objective: This study aimed to evaluate injury patterns associated with Stieda avulsion fractures of the medial femoral condyle at the attachment of the proximal MCL.

Materials And Methods: Knee radiographs and MRI scans of 11 patients with Stieda fractures were evaluated by two fellowship-trained MSK radiologists for fracture origin, integrity of the deep and superficial components of the MCL, medial retinacular structures, posterior oblique ligament, other ligamentous injuries, meniscal tears, and osteochondral injuries. The mechanism of injury and subsequent clinical management were recorded. Read More

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Anatomical Risk Factors for Anterior Cruciate Ligament Injury Are Not Important As Patellar Instability Risk Factors in Patients with Acute Knee Injury.

J Knee Surg 2020 Sep 17. Epub 2020 Sep 17.

Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, Michigan.

To compare in magnetic resonance imaging the anatomical risk factors for anterior cruciate ligament (ACL) injury and patellar dislocation among patients who suffered acute knee injury, 105 patients with acute knee injury resulting in 38 patellar dislocations (patella group), 35 ACL injuries (ACL group), and 32 meniscus or medial collateral ligament injuries (control group) were included. These groups were compared for risk factors for patellar dislocation (patellar height, trochlear dysplasia, and quadriceps angle of action) and for ACL injury (intercondylar width, posterior inclination of tibial plateaus, and depth of the medial plateau). Univariate analysis found statistically significant differences ( < 0. Read More

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September 2020

Injury to the Popliteal Artery and Vein During Open Fibular Collateral Ligament Reconstruction: A Case Report.

JBJS Case Connect 2020 Jul-Sep;10(3):e1900666

1Department of Orthopaedic Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio 2Department of Orthopaedic Surgery, University Hospitals Regional Hospitals, Richmond Heights, Ohio 3Department of Orthopaedic Surgery, TriPoint Medical Center, Painesville, Ohio 4Precision Orthopaedic Specialties, Inc., Chardon, Ohio.

Case: We present a case involving a 26-year-old male who sustained an iatrogenic injury to the right popliteal artery and vein during open fibular collateral ligament reconstruction. The lesions were repaired immediately and required subsequent procedures on postoperative day 1.

Conclusions: Iatrogenic vascular injuries during knee surgery can be devastating for patients and may lead to increased medical costs, unexpected hospital admissions, and additional surgical procedures. Read More

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A novel arthroscopically assisted reduction technique for three patterns of posterolateral tibial plateau fractures.

J Orthop Surg Res 2020 Sep 3;15(1):376. Epub 2020 Sep 3.

Intensive Care Unit, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, 150 Ximen Street, Linhai, 317000, Zhejiang Province, China.

Background: Posterolateral tibial plateau fractures (PTPF) remain a challenge for orthopedics surgeons because the special anatomical structures of the posterolateral corner of knee joint including the fibular head, the lateral collateral ligament, and the peroneal nerve, which impedes the exposure of the fracture fragments and need irregular implants to get a stable fixation. The purpose of present study was to introduce a new articular fracture fragments restoration technique for three patterns of PTPF and investigate the relationship between associated soft injuries and fracture patterns.

Methods: From May 2016 to April 2018, 31 patients with PTPF who had undertaken arthroscopically assisted reduction and fixation (AARF) were enrolled in present study. Read More

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September 2020

In recreational alpine skiing, the ACL is predominantly injured in all knee injuries needing hospitalisation.

Knee Surg Sports Traumatol Arthrosc 2021 Jun 14;29(6):1790-1796. Epub 2020 Aug 14.

Department of Sport Science of the University of Innsbruck, 6020, Innsbruck, Austria.

Purpose: The knee joint still represents the most frequent anatomical injury location accounting for about one-third of all injuries in recreational alpine skiers. However, comprehensive information on current knee injury patterns in this populations is sparse.

Methods: During the winter seasons 2016/17 and 2019/20, this retrospective questionnaire-based study was conducted in an Austrian sportclinic situated in a large ski area. Read More

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The signal intensity of preoperative magnetic resonance imaging has predictive value for determining the arthroscopic reparability of the anterior talofibular ligament.

Knee Surg Sports Traumatol Arthrosc 2021 May 8;29(5):1535-1543. Epub 2020 Aug 8.

Department of Orthopedic Surgery, College of Medicine, Kyung Hee University, 23 Kyunghee-daero, Dongdaemun-gu, Seoul, 02447, South Korea.

Purpose: Arthroscopic all-inside anterior talofibular ligament (ATFL) repair is a common surgical technique for chronic ankle instability (CAI), and the condition of the ATFL remnants is associated with its reparability. ATFL reparability can affect the clinical course, but the relationship between magnetic resonance imaging (MRI) findings and the intraoperative ATFL reparability is still unclear. The purpose of this study was to investigate the relationship between ATFL signal intensities according to MRI and intraoperative ATFL reparability. Read More

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Surgical Treatment of Combined ACL, PCL, and Lateral Side Injuries.

Sports Med Arthrosc Rev 2020 Sep;28(3):94-99

Department of Orthopaedic Surgery.

A knee dislocation that involves at least 2 of the 4 major ligament groups-such as the anterior cruciate ligament, the posterior cruciate ligament, or the posterolateral corner-is a catastrophic event for an athlete or trauma patient. Careful evaluation of these patients is needed to avoid disastrous outcomes. Surgeons must be cognizant of a number of key treatment concerns-such as tunnel crowding, controversies over graft fixation methods, and sparsity of level I clinical data-to make proper ligament repair decisions. Read More

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September 2020

Surgical Treatment of Combined ACL PCL Medial Side Injuries.

Sports Med Arthrosc Rev 2020 Sep;28(3):e18-e24

Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, Rochester, MN.

The multiple ligament knee injury involving the medial collateral ligament, anterior cruciate ligament, and posterior cruciate ligament is typically the result of a high-energy trauma or knee dislocation event. Optimal treatment strategies are debated, specifically in regard to timing of surgery, reconstruction/repair techniques, and postoperative protocols. This review details the stepwise treatment of these complex patients from diagnosis to postoperative rehabilitation and summarizes the current literature. Read More

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September 2020

Routine knee MRI: how common are peripheral nerve abnormalities, and why does it matter?

Skeletal Radiol 2021 Feb 29;50(2):321-332. Epub 2020 Jul 29.

The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD, 21287, USA.

Objective: To evaluate the frequency, MRI appearance, and clinical significance of peripheral nerve abnormalities encountered on routine knee MRI.

Materials And Methods: A retrospective review was performed to identify consecutive patients who underwent routine knee MRI from March 2015-2018 and had peripheral nerve abnormalities. MRIs were reviewed for the presence of tibial (TN) and common peroneal nerve (CPN) abnormalities (including hyperintensity, bulbous enlargement, discontinuity, architectural distortion, skeletal muscle denervation). Read More

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February 2021

The anterior talofibular ligament-posterior talofibular ligament angle decreased after ankle lateral stabilization surgery.

Knee Surg Sports Traumatol Arthrosc 2021 May 28;29(5):1510-1515. Epub 2020 Jul 28.

Sports Medicine Center of Fudan University, Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, No. 12 Urumq Middle Road, Shanghai, 20040, China.

Purpose: The angle between the anterior talofibular ligament (ATFL) and the posterior talofibular ligament (PTFL) is increased in patients with chronic ATFL injury. This study aimed to compare the AFTL-PTFL angle before versus after ankle lateral stabilization surgery, and to evaluate whether the ATFL-PTFL angle correlates with the ligament injury severity.

Methods: This retrospective study included 48 patients with mechanical ankle instability treated between 2016 and 2018. Read More

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The mechanism and cause of anterior cruciate ligament tear in the Korean military environment.

Knee Surg Relat Res 2019 Nov 28;31(1):13. Epub 2019 Nov 28.

Department of Orthopaedic Surgery, Gil Hospital, Gachon University of Medicine and Science, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea.

Purpose: Anterior cruciate ligament (ACL) injury is very common but few studies have analyzed the injury mechanism and cause of ACL tear in a specific environment such as a military institution. The purpose of this study was to analyze the injury mechanism and cause of ACL injury in the military environment. Additionally, this study could provide outcomes that may aid future studies on prevention of ACL injury in military personnel. Read More

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November 2019

Risk Factors for Grade 3 Pivot Shift in Knees With Acute Anterior Cruciate Ligament Injuries: A Comprehensive Evaluation of the Importance of Osseous and Soft Tissue Parameters From the SANTI Study Group.

Am J Sports Med 2020 08 6;48(10):2408-2417. Epub 2020 Jul 6.

Kansas City University of Medicine and Biosciences, Kansas City, Missouri, USA.

Background: Preoperative grade 3 pivot shift has been reported to be associated with higher rates of anterior cruciate ligament (ACL) failure, persistent instability, and inferior patient-reported outcomes. The etiology of a high-grade pivot shift is multifactorial, and numerous factors have been suggested to be responsible. More attention has recently been focused on injury to the anterolateral structures (ALS) as a risk factor for a grade 3 pivot shift. Read More

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Radiological Identification of Injury to the Kaplan Fibers of the Iliotibial Band in Association With Anterior Cruciate Ligament Injury.

Am J Sports Med 2020 07 24;48(9):2213-2220. Epub 2020 Jun 24.

OrthoSport Victoria Research Unit, Richmond, Australia.

Background: Recent biomechanical studies have demonstrated that the Kaplan fibers (KFs) of the iliotibial band play a role in the control of anterolateral rotation of the knee. However, controversy exists regarding whether the KFs are injured in conjunction with anterior cruciate ligament (ACL) injury.

Purpose: To establish the prevalence of radiological injury to the KFs in the ACL-injured knee; to evaluate the effect of the time interval between injury and magnetic resonance imaging (MRI) on diagnosis of KF injury; and to assess for any association between KF injury and other qualitative radiological findings. Read More

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Deep MCL injury cases with arthroscopic findings of hypermobile medial meniscus: A report of six cases of arthroscopic meniscal suture repair.

Asia Pac J Sports Med Arthrosc Rehabil Technol 2020 Oct 9;22:1-4. Epub 2020 Jun 9.

Department of Sports Orthopedic Surgery, Kanto Rosai Hospital, 1-1 Kizuki Sumiyoshi-cho, Nakahara-ku, Kawasaki city, Kanagawa-pref, Japan.

MRI did not detect any abnormality in the medial meniscus besides high-intensity changes at the meniscofemoral portion of the deep medial collateral ligament. Although pure valgus stress test proved no medial joint widening at 0° and 30°, when an examiner applied knee valgus and tibial external rotation force, the patient experienced pain in the anteromedial knee joint that coincided with their refractory symptoms in individual specific activity. Arthroscopy investigation confirmed that the anterior to middle segment of the medial meniscus had excessively slid into the central direction by a probe-drawing manoeuvre; synchronous meniscal movement in the valgus and external rotation test was also observed. Read More

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October 2020

The risk of concomitant injuries of the contralateral side in valgus injured knee by lateral bumper impact - "Windswept injury mechanism".

Injury 2020 Aug 6;51(8):1863-1866. Epub 2020 May 6.

Department of Orthopaedics Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea. Electronic address:

Purpose: Valgus injury of high energy of the lateral bumper impact can lead blows to the inside of the knee that push the knee outwards or indirect injury where a varus force is applied to the contralateral knee, which injury pattern named as "Windswept injury mechanism" in this study. The objective of this study was to establish injury pattern in the contralateral side knee on the basis of this pattern recognition to enhance a diagnosis of interrelated osseous and soft-tissue injuries.

Methods: Sixteen patients by "Windswept injury mechanism" were identified, who visited a level 1 trauma center between Jan 2007 and Dec 2016. Read More

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