663 results match your criteria Collateral Ligament Pathology Knee


Arthroscopic Transosseous Repair of a Medial Meniscal Posterior-Root Tear.

JBJS Essent Surg Tech 2021 Oct-Dec;11(4). Epub 2021 Oct 7.

Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota.

Meniscal root tears are soft-tissue and/or osseous injuries characterized by an avulsion of, or tear within 1 cm of, the native meniscal insertion. These injuries account for 10% to 21% of all meniscal tears, affecting nearly 100,000 patients annually. Medial meniscal posterior-root tears (MMPRTs) expose the tibiofemoral joint to supraphysiologic contact pressure, decreased contact area, and altered knee kinematics similar to a total meniscectomy. Read More

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October 2021

Observation on the Effect of MRI Image Scanning on Knee Pain in Football Injury.

Authors:
Weidong Yu

Scanning 2022 25;2022:7348978. Epub 2022 May 25.

College of Physical Education, Fuyang Normal University, Fuyang, Anhui 236037, China.

To study the effect of football injury on knee pain based on MRI image scanning, in this paper, a total of 31 knee injuries of 29 male professional football players from December 2012 to April 2015 were used as the experimental group. The players were 23.6 ± 3. Read More

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The lateral femoral notch sign and coronal lateral collateral ligament sign in magnetic resonance imaging failed to predict dynamic anterior tibial laxity.

BMC Musculoskelet Disord 2022 Apr 29;23(1):402. Epub 2022 Apr 29.

Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No.138, Sheng-Li Road, Tainan, Taiwan, 70428.

Purpose: To investigate the relationship between the lateral femoral notch sign as well as the coronal lateral collateral ligament (LCL) sign and anterior tibial translation using the GNRB arthrometer in patients with anterior cruciate ligament (ACL) injuries.

Methods: Forty-six patients with ACL injuries were retrospectively included from May 2020 to February 2022; four patients were excluded due to incomplete data. Magnetic resonance imaging (MRI) were reviewed for the lateral femoral notch sign and the coronal LCL sign. Read More

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Development of an Ultrasound Technique to Evaluate the Popliteal Complex in the Horse.

Animals (Basel) 2022 Mar 22;12(7). Epub 2022 Mar 22.

Large Animal Teaching Hospital, Department of Medicine and Surgery, University of Copenhagen, 1165 Copenhagen, Denmark.

The popliteal tendon and muscle are major stabilizers of the human and dog knee, more specifically the postero-lateral corner. Injury to this complex causes posterior knee pain, and it is generally associated with other injured structures such as the lateral collateral ligament, lateral meniscus, and/or the cranial cruciate ligament. The popliteal complex is poorly reported in the horse, and its specific function has not been determined. Read More

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Anatomy and ultrasound imaging of the tibial collateral ligament: A narrative review.

Clin Anat 2022 Jul 11;35(5):571-579. Epub 2022 Apr 11.

Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.

Medial knee pain is commonplace in clinical practice and ultrasound assessment of the tibial collateral ligament-medial meniscus complex is increasingly becoming a valuable examination tool in the outpatient setting. In the pertinent literature, basic sonographic protocols have been proposed to evaluate the medial compartment of the knee joint. Using high-frequency ultrasound probes and high-level ultrasound machines; we matched the histo-anatomical features of the tibial collateral ligament-medial meniscus complex and its different sonographic patterns in physiological/pathological conditions to define a standardized (layer-by-layer) sonographic approach. Read More

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High Rates of Damage to the Medial Patellofemoral Ligament, Lateral Trochlea, and Patellar Crest After Acute Patellar Dislocation: Magnetic Resonance Imaging Analysis.

Arthroscopy 2022 Aug 12;38(8):2472-2479. Epub 2022 Feb 12.

Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy; Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Mile End Hospital, London, England; School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Stoke on Trent, England.

Purpose: The primary outcome of interest of this study was to determine the frequency, location, and extent of chondral injuries and medial patellofemoral ligament (MPFL) tears, along with the rate of loose bodies, in the knee after acute primary patellar dislocation. The secondary outcome of interest was to conduct a multivariate analysis to investigate whether the presence of pathoanatomic abnormalities, including structural differences in the knees of the patients, is associated with the features of the lesions.

Methods: Patients who underwent magnetic resonance imaging after primary acute patellar dislocation were identified from our institutional databases. Read More

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Lateral Collateral Ligament and Proximal Tibiofibular Joint Reconstruction for Tibiofibular Instability.

Arthrosc Tech 2022 Feb 23;11(2):e251-e256. Epub 2022 Jan 23.

Steadman Clinic, Vail, Colorado, U.S.A.

Instability of the proximal tibiofibular joint (PTFJ) can be post-traumatic or due to accumulative injuries and may also be underdiagnosed pathology that can present with symptoms of lateral and/or medial knee pain. It can be associated with subtle instability and subluxation or frank dislocation of both the PTFJ and the native knee joint. Previously described techniques have been either nonanatomic, require secondary hardware removal, disrupt native anatomy, or fail to account for the inherent stabilizing effect of the lateral collateral ligament, which is likely additionally injured or lax in these patients. Read More

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February 2022

Diagnostic accuracy of point-of-care knee ultrasound for evaluation of meniscus and collateral ligaments pathology in comparison with MRI.

Acta Radiol 2021 Dec 1:2841851211058280. Epub 2021 Dec 1.

Radiology Department, Faculty of Medicine, 68791Ain Shams University, Cairo, Egypt.

Background: Although magnetic resonance imaging (MRI) is often the "gold standard" for diagnosing knee problems, it has many limitations. Therefore, ultrasonography has been suggested as an effective rapid alternative in many knee abnormalities, especially after injuries of the meniscus and collateral ligaments.

Purpose: To determine the diagnostic accuracy of point-of-care ultrasound (POCUS) in detecting injuries of the meniscus and collateral ligament compared to MRI. Read More

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December 2021

Patellar dislocation is associated with increased tibial but not femoral rotational asymmetry.

Knee Surg Sports Traumatol Arthrosc 2022 Jul 1;30(7):2342-2351. Epub 2021 Dec 1.

Department of Orthopaedic Surgery, Western Health, 160 Gordon Street, Footscray, VIC, 3011, Australia.

Purpose: Patellar dislocation is associated with a range of anatomical abnormalities affecting the trochlea, extensor mechanism and the tibia. The relationship between patellofemoral instability and rotational abnormalities of the posterior condyles, trochlear groove and proximal tibia has not been adequately determined. This study aimed to identify the frequency and severity of anatomical risk factors to determine their relative contribution to patellofemoral instability. Read More

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Deletion of Hyaluronan-Binding Protein Involved in Hyaluronan Depolymerization (HYBID) Results in Attenuation of Osteoarthritis in Mice.

Am J Pathol 2021 11 12;191(11):1986-1998. Epub 2021 Aug 12.

Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan. Electronic address:

Hyaluronan (HA)-binding protein involved in HA depolymerization (HYBID) is involved in cartilage destruction via HA depolymerization in human knee osteoarthritis. However, the role of HYBID in the progression of osteoarthritis remain elusive. This study sought to examine whether genetic depletion of Hybid could suppress surgically induced osteoarthritis of mouse knee joints. Read More

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November 2021

Numerical Analysis of the , with Sprains of Different Degrees after Trauma.

Comput Math Methods Med 2021 24;2021:2109348. Epub 2021 Jul 24.

Instituto Politécnico Nacional, Escuela Superior de Ingeniería Mecánica y Eléctrica, Sección de Estudios de Posgrado e Investigación, Unidad Profesional Adolfo López Mateos "Zacatenco", Avenida Instituto Politécnico Nacional, s/n Edificio 5, 2do. Piso, Col. Lindavista, C.P. 07738 Ciudad de México, Mexico.

Nowadays, cruciate ligament injuries have increased in incidence, since practicing a sport or physical activity has become a trend in current societies. Although this lifestyle generates multiple benefits, as a consequence, injury has also increased. Due to its nature and complexity, the ligaments of the knee are those that are most frequently affected, mainly the (anterior cruciate ligament). Read More

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November 2021

Imaging Characteristics of the Proximal Lateral Collateral Ligament of the Knee: Findings on Ultrasound and MRI With Histologic Correlation.

J Ultrasound Med 2022 Apr 4;41(4):827-834. Epub 2021 Jun 4.

Department of Radiology, University of Michigan, Ann Arbor, Michigan.

Objectives: Determine prevalence of increased signal intensity of the lateral collateral ligament (LCL) of the knee on MRI and decreased echogenicity on ultrasound, and compare with cadaveric histologic evaluation.

Methods: After IRB approval of this prospective study with informed consent, patients having knee MRI were additionally evaluated with ultrasound. Signal intensities of LCL on MRI (low, intermediate, high), echogenicity at ultrasound (hyperechoic, hypoechoic, anechoic), and extent of findings were assessed. Read More

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The effects of posterior cruciate ligament rupture on the biomechanical and histological characteristics of the medial collateral ligament: an animal study.

J Orthop Surg Res 2021 May 21;16(1):330. Epub 2021 May 21.

Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.

Background: To investigate the effect of complete rupture of the posterior cruciate ligament (PCL) on the biomechanics and histology of the medial collateral ligament (MCL).

Materials And Methods: Seventy-two male rabbits were randomly divided into two groups: the ruptured group was treated with complete PCL amputation, while the intact group was only subjected to PCL exposure without amputation. Eighteen rabbits were randomly sacrificed at 8, 16, 24, and 40 weeks after the operation, and their specimens were processed for mechanical tensile testing, nano-indentation experiments, hematoxylin-eosin (HE) staining, and picrosirius-polarization staining. Read More

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Heterotrophic calcification of medial collateral ligament of knee joint: A case report.

J Pak Med Assoc 2021 Feb;71(2(B)):756-758

Sialkot College of Physical Therapy, Amin Welfare & Teaching Hospital, Sialkot, Pakistan.

Soft-tissue calcification is characterised by the deposit of calcium in the damaged collagen fibres. The pathology of the phenomenon is not fully known. Trauma, spinal cord injury and traumatic brain injury have been reported as possible risk factors. Read More

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February 2021

Methylene blue prevents osteoarthritis progression and relieves pain in rats via upregulation of Nrf2/PRDX1.

Acta Pharmacol Sin 2022 Feb 8;43(2):417-428. Epub 2021 Apr 8.

State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.

Oxidative stress-related cartilage degeneration, synovitis, and joint pain play vital roles in the progress of osteoarthritis (OA). Anti-oxidative stress agents not only prevent structural damage progression but also relieve OA-related pain. In this study, we investigated the therapeutic effect of methylene blue (MB), a classical and important anti-oxidant with strong neural affinity. Read More

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February 2022

Ultrasound-Guided Perimeniscal Injections: Anatomical Description and Feasibility Study.

J Ultrasound Med 2022 Jan 31;41(1):217-224. Epub 2021 Mar 31.

Radiology Department, APHM, Marseille, France.

Objectives: To anatomically describe the ultrasound (US)-guided perimeniscal injection technique, and evaluate its feasibility in the treatment of meniscal pain.

Methods: This work was initially undertaken in four cadaveric specimens with US-guided medial and lateral perimeniscal injection of China ink, followed by cadaveric dissection to assess injectate distribution, and potential injury to intra-articular and peri-articular structures. Then, 35 consecutive patients who underwent US-guided perimeniscal corticosteroid injection under local anesthesia for the treatment of symptomatic medial (30/35) or lateral (5/35) degenerative meniscal tear were retrospectively evaluated. Read More

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January 2022

Calcium calmodulin kinase II activity is required for cartilage homeostasis in osteoarthritis.

Sci Rep 2021 03 11;11(1):5682. Epub 2021 Mar 11.

Barts and the London School of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK.

WNT ligands can activate several signalling cascades of pivotal importance during development and regenerative processes. Their de-regulation has been associated with the onset of different diseases. Here we investigated the role of the WNT/Calcium Calmodulin Kinase II (CaMKII) pathway in osteoarthritis. Read More

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Connecting fibers between ATFL's inferior fascicle and CFL transmit tension between both ligaments.

Knee Surg Sports Traumatol Arthrosc 2021 Aug 1;29(8):2511-2516. Epub 2021 Mar 1.

MIFAS By Grecmip (Minimally Invasive Foot and Ankle Society), Merignac, France.

Purpose: The lateral ligament complex of the ankle has been extensively studied. Recently an anatomical study described a connection between anterior talofibular ligament inferior fascicle (ATFLif) and calcaneofibular ligament (CFL). The applicability and the mechanical role of these connections have not yet been studied and need to be clarified. 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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Percutaneous Medial Collateral Ligament Release Improves Medial Compartment Access During Knee Arthroscopy.

Arthrosc Sports Med Rehabil 2021 Feb 27;3(1):e105-e114. Epub 2020 Dec 27.

Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, U.S.A.

Purpose: To quantify intraoperative joint space widening afforded by the outside-in, percutaneous release of the medial collateral ligament (MCL) and to evaluate its impact on medial compartment width and functional outcomes at 6-week follow-up for patients undergoing a partial medial meniscectomy without postoperative bracing.

Methods: Patients with posteromedial meniscus tears and no evidence of ipsilateral knee pathology, undergoing partial medial meniscectomy, were enrolled. Intraoperatively, medial compartment width was quantified with fluoroscopy before and after the percutaneous MCL release with an 18-gauge spinal needle proximal to the joint line. Read More

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February 2021

The posterior fibulotalocalcaneal ligament complex: a forgotten ligament.

Knee Surg Sports Traumatol Arthrosc 2021 May 24;29(5):1627-1634. Epub 2021 Jan 24.

Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.

Purpose: The purpose of the present anatomical study was to define the exact morphology of the posterior fibulotalocalcaneal ligament complex (PFTCLC), both for a better orientation and understanding of the anatomy, especially during hindfoot endoscopy.

Methods: Twenty-three fresh frozen specimens were dissected in order to clarify the morphology of the PFTCLC.

Results: In all specimens, the ligament originated from the posteromedial border of the lateral malleolus between the posterior tibiofibular ligament (superior border) and the calcaneofibular ligament (CFL), (inferior border). Read More

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Valgus stress radiography following superficial medial collateral ligament reconstruction using a modified LaPrade technique with adjustable loop femoral fixation.

Acta Orthop Belg 2020 Jun;86(2):280-286

Purpose of this study was to assess postoperative laxity of MCL reconstructions utilizing a modified LaPrade superficial MCL reconstruction. We retrospectively reviewed post-operative valgus stress radiographs in 23 multiligament injured patients who underwent concurrent sMCL and cruciate ligament reconstruction by a single surgeon. Post- operatively, 23 patients underwent valgus stress radiographs that were assessed at a mean of 8. Read More

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One-Stage Anatomical Revision Anterior Cruciate Ligament Reconstruction: Results According to Tunnel Overlaps.

Arthroscopy 2021 04 23;37(4):1223-1232. Epub 2020 Nov 23.

Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Purpose: To present clinical results according to tunnel overlap in 1-stage anatomical revision anterior cruciate ligament reconstruction (ACLR).

Methods: All patients who underwent revision ACLR performed by a single surgeon (J.H. Read More

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The Pathoanatomy of Posterolateral Corner Ligamentous Disruption in Multiligament Knee Injuries Is Predictive of Peroneal Nerve Injury.

Am J Sports Med 2020 12 19;48(14):3541-3548. Epub 2020 Oct 19.

Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, Connecticut, USA.

Background: A description of the precise locations of ligamentous and myotendinous injury patterns of acute posterolateral corner (PLC) injuries and their associated osseous and neurovascular injuries is lacking in the literature.

Purpose: To characterize the ligamentous and myotendinous injury patterns and zones of injury that occur in acute PLC injuries and determine associated rates of peroneal nerve palsies and vascular injuries, as well as fracture and dislocation.

Study Design: Case series; Level of evidence, 4. Read More

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December 2020

Mechanosensitive Control of Articular Cartilage and Subchondral Bone Homeostasis in Mice Requires Osteocytic Transforming Growth Factor β Signaling.

Arthritis Rheumatol 2021 03 1;73(3):414-425. Epub 2021 Feb 1.

University of California, San Francisco.

Objective: Transforming growth factor β (TGFβ) signaling plays a complex tissue-specific and nonlinear role in osteoarthritis (OA). This study was conducted to determine the osteocytic contributions of TGFβ signaling to OA.

Methods: To identify the role of osteocytic TGFβ signaling in joint homeostasis, we used 16-week-old male mice (n = 9-11 per group) and female mice (n = 7-11 per group) with an osteocyte-intrinsic ablation of TGFβ receptor type II (TβRII mice) and assessed defects in cartilage degeneration, subchondral bone plate (SBP) thickness, and SBP sclerostin expression. Read More

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Refining surgical models of osteoarthritis in mice and rats alters pain phenotype but not joint pathology.

PLoS One 2020 29;15(9):e0239663. Epub 2020 Sep 29.

Pain Centre Versus Arthritis, School of Life Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom.

The relationship between osteoarthritis (OA) structural change and pain is complex. Surgical models of OA in rodents are often rapid in onset, limiting mechanistic utility and translational validity. We aimed to investigate the effect of refining surgical small rodent models of OA on both joint pathology and pain behaviour. Read More

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December 2020

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 2022 May 17;35(6):676-683. 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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The mechanism of medial collateral ligament repair in knee osteoarthritis based on the TLR4/MyD88/NF-κB inflammatory signaling pathway.

J Musculoskelet Neuronal Interact 2020 09;20(3):398-403

Department of Orthopedics, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, P.R. China.

Objectives: To explore the role of medial collateral ligament repair in knee osteoarthritis based on TLR4/ MyD88/ NF-κ inflammatory signaling pathway.

Methods: The modified Hulth method was used to establish models, which were divided into a repair group, a model group, and a sham operation group. The repair group was treated with medial ligament repair technology. Read More

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September 2020

Leukocyte-rich platelet-rich plasma application in post-traumatic osteoarthritis with popliteal cyst: a case report.

Regen Med 2020 06 10;15(6):1695-1702. Epub 2020 Aug 10.

H Ben Taub Department of Physical Medicine & Rehabilitation, Baylor College of Medicine, Houston, TX 77030, USA.

To describe the successful treatment of a Baker's cyst in the setting of post-traumatic osteoarthritis using ultrasound-guided injection of platelet-rich plasma. Outpatient sports clinic. 29-year old male basketball player. 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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