1,738 results match your criteria Knee Anterior Cruciate Ligament Injuries MRI


Predictors of Healing Ligament Size and Magnetic Resonance Signal Intensity at 6 Months After Bridge-Enhanced Anterior Cruciate Ligament Repair.

Am J Sports Med 2019 Apr 15:363546519836087. Epub 2019 Apr 15.

Investigation performed at Boston Children's Hospital, Boston, Massachusetts, USA.

Background: Primary repair of the anterior cruciate ligament (ACL) augmented with a tissue engineered scaffold to facilitate ligament healing is a technique under development for patients with ACL injuries. The size (the amount of tissue) and signal intensity (the quality of tissue) of the healing ligament as visualized on magnetic resonance imaging (MRI) have been shown to be related to its strength in large animal models.

Hypothesis: Both modifiable and nonmodifiable risk factors could influence the size and signal intensity of the repaired ligament in patients at 6 months after surgery. Read More

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http://dx.doi.org/10.1177/0363546519836087DOI Listing
April 2019
1 Read

Do variants of the intercondylar notch predispose children to the injury of the anterior cruciate ligament?

Clin Anat 2019 Apr 4. Epub 2019 Apr 4.

Department of Diagnostic Imaging, Polish Mother's Memorial Hospital-Research Institute in Lodz, Rzgowska 281/289, 93-338 Lodz, Poland.

Differences in knee development result in morphological variations observed among individuals. Some of them predispose to significant knee injuries. Although the anatomical risk factors are well established in adults; there is still a need for further research in this area in the group of children. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/ca.23382
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http://dx.doi.org/10.1002/ca.23382DOI Listing
April 2019
5 Reads

Correlation Between Magnetic Resonance Imaging and Surgical Exploration of the Anterolateral Structures of the Acute Anterior Cruciate Ligament-Injured Knee.

Am J Sports Med 2019 Apr;47(5):1186-1193

Orthopaedic Unit and Kirk Kilgour Sports Injury Centre, S. Andrea Hospital, University of Rome Sapienza, Rome, Italy.

Background:: Combined anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstruction is associated with improved clinical outcomes as compared with isolated intra-articular reconstruction, but the indications are not precisely defined. It may be the case that patients with proven anterolateral injury on preoperative imaging are most likely to benefit, but the accuracy of magnetic resonance imaging (MRI) is not known.

Purpose/hypothesis:: To evaluate the correlation between MRI and surgical exploration in acute ACL-injured knees. Read More

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http://dx.doi.org/10.1177/0363546519831686DOI Listing
April 2019
1 Read
4.362 Impact Factor

Factors Associated With a Delay in Achieving Full Knee Extension Before Anterior Cruciate Ligament Reconstruction.

Orthop J Sports Med 2019 Mar 8;7(3):2325967119829547. Epub 2019 Mar 8.

Department of Orthopaedics, Jacobs School of Medicine and Biomedical Science, SUNY University at Buffalo, Buffalo, New York, USA.

Background: Arthrofibrosis commonly occurs after an acute anterior cruciate ligament (ACL) injury and following ACL reconstruction and can lead to poor outcomes. Preoperative stiffness has been shown to be associated with postoperative stiffness; however, few studies have examined predictors of preoperative delay in obtaining full knee extension.

Purpose: To examine demographic and injury factors as predictors of time required to achieve full knee extension preoperatively in patients with an acute ACL injury. Read More

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http://dx.doi.org/10.1177/2325967119829547DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410389PMC
March 2019
3 Reads

Single-tunnel anatomic double-bundle anterior cruciate ligament reconstruction has the same effectiveness as double femoral, double tibial tunnel: A prospective randomized study.

Medicine (Baltimore) 2019 Mar;98(11):e14851

Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu.

Purpose: To investigate whether single femoral, single tibial tunnel anatomic double-bundle anterior cruciate ligament (ACL) reconstruction is equal to or superior to double femoral, double tibial tunnel ACL double-bundle anatomic reconstruction in terms of restoring the stability and functions of the knee joint.

Methods: A prospective clinical study was performed to compare 30 cases of single-tunnel ACL double-bundle anatomic reconstruction to 28 cases of double-tunnel ACL double-bundle anatomic reconstruction, with average follow-up of 36 months. All graft tendons were hamstring tendon autografts. Read More

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http://dx.doi.org/10.1097/MD.0000000000014851DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6426548PMC
March 2019
1 Read

ACL rupture in the immediate build-up to the Olympic Games: return to elite alpine ski competition 5 months after injury and ACL repair.

BMJ Case Rep 2019 Mar 15;12(3). Epub 2019 Mar 15.

Chirurgie Orthopédique, Centre Orthopédique Santy, Hôpital privé Jean Mermoz, Lyon, France.

Anterior cruciate ligament (ACL) rupture in the immediate build-up to a major international competition can preclude an athletes' participation due to the prolonged period of rehabilitation that is typically required after ACL reconstruction. ACL repair is an alternative strategy that has been postulated to confer the advantage of rapid rehabilitation and earlier return to sport. A 33-year-old professional alpine skier sustained a right knee ACL rupture in September 2017. Read More

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http://dx.doi.org/10.1136/bcr-2018-227735DOI Listing
March 2019
1 Read

Deep Learning for Detection of Complete Anterior Cruciate Ligament Tear.

J Digit Imaging 2019 Mar 11. Epub 2019 Mar 11.

Department of Radiology, Columbia University Irving Medical Center, 622 West 168th St., MC 28, New York, NY, 10032, USA.

Deep learning for MRI detection of sports injuries poses unique challenges. To address these difficulties, this study examines the feasibility and incremental benefit of several customized network architectures in evaluation of complete anterior cruciate ligament (ACL) tears. Two hundred sixty patients, ages 18-40, were identified in a retrospective review of knee MRIs obtained from September 2013 to March 2016. Read More

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http://dx.doi.org/10.1007/s10278-019-00193-4DOI Listing
March 2019
2 Reads
1.200 Impact Factor

Review of magnetic resonance imaging features of complications after anterior cruciate ligament reconstruction.

Singapore Med J 2019 Feb;60(2):63-68

The Orchard Imaging Centre, Singapore.

The anterior cruciate ligament (ACL) is an important stabiliser of the knee and is commonly torn in sports injuries. Common indications for imaging after ACL reconstruction include persistent symptoms, limitation of motion and re-injury. Important postoperative complications include graft failure, impingement, arthrofibrosis and graft degeneration. Read More

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http://dx.doi.org/10.11622/smedj.2019017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395843PMC
February 2019
3 Reads

3D bone-shape changes and their correlations with cartilage T1ρ and T2 relaxation times and patient-reported outcomes over 3-years after ACL reconstruction.

Osteoarthritis Cartilage 2019 Feb 23. Epub 2019 Feb 23.

Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA; Program of Advanced Musculoskeletal Imaging (PAMI), Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH, USA. Electronic address:

Purpose: (1) To identify bone-shape changes from baseline to 3-years after anterior cruciate ligament reconstruction (ACLR). (2) to assess association between changes in bone-shape from baseline to 6-months and changes in cartilage matrix and patient functions and symptoms from baseline to 3-years after ACLR.

Methods: Bilateral knees of 30 patients with unilateral ACL injuries were scanned at baseline, 6-months, 1-, 2-, and 3-years after ACLR. Read More

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http://dx.doi.org/10.1016/j.joca.2019.01.017DOI Listing
February 2019
7 Reads

ASSESSMENT OF THE REGENERATION CAPACITY OF SEMITENDINOSUS AND GRACILIS TENDONS.

Acta Ortop Bras 2018 ;26(6):379-383

Knee Surgery and Arthroscopy Group, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo, SP Brazil.

Objectives: To evaluate the regenerative capacity of gracilis (G) and semitendinosus (ST) tendons, to examine the sensitivity and specificity of signs and symptoms in the assessment of hamstring tendons, and to assess the thickness and insertion site of regenerated tendons.

Methods: Thirty sequential knees were subjected to anterior cruciate ligament reconstruction with semitendinosus and gracilis tendons. After surgery, the patients were followed up clinically with physical examination and magnetic resonance imaging (MRI). Read More

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http://dx.doi.org/10.1590/1413-785220182606168849DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6362683PMC
January 2018
2 Reads

Patient-reported outcomes 1 to 5 years after ACL reconstruction: effect of combined injury, and associations with MRI-defined osteoarthritis features.

Arthritis Care Res (Hoboken) 2019 Feb 14. Epub 2019 Feb 14.

La Trobe Sport & Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Bundoora, Australia.

Objective: Persistent symptoms and poor quality of life (QoL) are common following anterior cruciate ligament reconstruction (ACLR). We aimed to determine the influence of a combined ACL injury (i.e. Read More

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http://dx.doi.org/10.1002/acr.23854DOI Listing
February 2019
8 Reads

Avulsion Fracture of the Anterior Intercondylar Eminence in an Eight-year-old Child: ACase Report.

J Orthop Case Rep 2018 Sep-Oct;8(5):32-35

Department of Orthopaedic and Trauma Surgery, AZ Delta Hospital, Campus Torhout, Belgium.

Introduction: Avulsion fractures of the tibial intercondylar eminence are rare and occur mostly in children. The purpose of this paper is to present a case of this rare pathology and to underline the importance of early diagnosis.

Case Report: A male 8-year-old child presented with pain in his left knee and difficulties to walk after a combined injury of falling and contact trauma. Read More

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http://dx.doi.org/10.13107/jocr.2250-0685.1198DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6367294PMC
February 2019
3 Reads

Comparison of anatomical risk factors for noncontact anterior cruciate ligament injury using magnetic resonance imaging.

J Clin Orthop Trauma 2019 Jan-Feb;10(1):143-148. Epub 2017 Aug 14.

Kasturba Medical College, Manipal University, Mangalore, Karnataka, India.

Purpose: To compare the significance of the tibio-femoral geometrical indices (notch width index, medial and lateral tibial slopes) and patellar tendon- tibial shaft angle in predicting non-contact ACL injuries and to compare these factors between genders.

Methods: Retrospective case control study evaluating 66 MRI knee of patients of age group of 18-60 years with 33 cases of noncontact ACL injury and 33 age matched controls. Notch width index, medial and lateral tibial slopes and patellar tendon tibial shaft angles were calculated and compared for statistical significance and was also compared between the genders. Read More

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http://dx.doi.org/10.1016/j.jcot.2017.08.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349608PMC
August 2017
2 Reads

Bone Bruises Associated with Anterior Cruciate Ligament Injury as Indicators of Injury Mechanism: A Systematic Review.

Sports Med 2019 Mar;49(3):453-462

Division of Physical Therapy, Center for Human Movement Science, School of Medicine, The University of North Carolina at Chapel Hill, CB# 7135 Bondurant Hall, Chapel Hill, NC, 27599-7135, USA.

Background: Anterior cruciate ligament (ACL) injury is one of the most common injuries in sports, and the injury mechanisms are not completely clear. Bone bruises seen on magnetic resonance imaging (MRI) following ACL injuries may provide significant information for determining ACL injury mechanisms.

Objective: The aim was to determine ACL injury mechanisms through an evaluation of locations of bone bruises associated with ACL injury. Read More

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http://dx.doi.org/10.1007/s40279-019-01060-6DOI Listing
March 2019
10 Reads

An Abnormal Tibial Position Is Associated With Alterations in the Meniscal Matrix: A 3-Year Longitudinal Study After Anterior Cruciate Ligament Reconstruction.

Orthop J Sports Med 2019 Jan 10;7(1):2325967118820057. Epub 2019 Jan 10.

Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA.

Background: An altered tibial position is still present despite anterior cruciate ligament (ACL) reconstruction. It has been demonstrated that an abnormal tibial position after an ACL injury may play a role in subsequent injuries to the meniscus, which can lead to early cartilage degeneration.

Purpose: To determine changes in both the tibial position and the meniscal matrix present before and after ACL reconstruction as well as to evaluate the association between these 2 variables in ACL-injured knees 3 years after reconstruction. Read More

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http://dx.doi.org/10.1177/2325967118820057DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6329038PMC
January 2019
5 Reads

[CORRELATION BETWEEN MRI AND ARTHROSCOPIC FINDINGS IN THE DIAGNOSIS OF KNEE PATHOLOGY IN YOUNG AND ADULT PATIENTS].

Harefuah 2019 Jan;158(1):7-11

Orthopedic Surgery Department, Hillel Yaffe Medical Center.

Background: MRI is increasingly used as a diagnostic tool for sports injuries involving the knees before referral to arthroscopy.

Objectives: Since degenerative changes increase with age, we aimed to evaluate whether age affects the accuracy of MRI.

Methods: This is a retrospective study of patients with knee injury whose evaluation included both MRI and arthroscopy. Read More

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January 2019
6 Reads

Posterior Tibial Slope and Risk of Posterior Cruciate Ligament Injury.

Am J Sports Med 2019 Feb 14;47(2):312-317. Epub 2019 Jan 14.

The Steadman Clinic, Vail, Colorado, USA.

Background:: Recent biomechanical studies have identified sagittal plane posterior tibial slope as a potential risk factor for posterior cruciate ligament (PCL) injury because of its effects on the kinematics of the native and surgically treated knee. However, the literature lacks clinical correlation between primary PCL injuries and decreased posterior tibial slope.

Purpose/hypothesis:: The purpose of this study was to retrospectively compare the amount of posterior tibial slope between patients with PCL injuries and age/sex-matched controls with intact PCLs. Read More

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http://dx.doi.org/10.1177/0363546518819176DOI Listing
February 2019
11 Reads

[Anterior cruciate ligament rupture in children with open growth plate : Diagnostics and treatment].

Authors:
R Eberl

Unfallchirurg 2019 Jan;122(1):17-21

Privatklinikum Graz Ragnitz, Berthold-Linder-Weg 15, 8047, Graz, Österreich.

Anterior cruciate ligament (ACL) ruptures in pediatric patients with open growth plate are of concern and the number of injuries is increasing. The possibilities for diagnostics using magnetic resonance imaging (MRI) have improved and are without radiation exposure to the growing skeleton. The MRI should be performed routinely in every case of adequate trauma also to recognize additional injuries to the knee joint. Read More

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http://dx.doi.org/10.1007/s00113-018-0589-1DOI Listing
January 2019
3 Reads

Anterolateral ligament injury has a synergic impact on the anterolateral rotatory laxity in acute anterior cruciate ligament-injured knees.

Knee Surg Sports Traumatol Arthrosc 2019 Jan 11. Epub 2019 Jan 11.

Department of Orthopedic Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, South Korea.

Purpose: To investigate the prevalence of the anterolateral ligament (ALL) injuries and its role in rotatory laxity in acute anterior cruciate ligament (ACL)-injured knees.

Methods: Two-hundred and ninety-six consecutive patients with acute ACL injuries were evaluated retrospectively, excluding those with other ligament injury and undetectable path of ALL in MRI. Patients were divided into two groups based on the degree of ACL injury in arthroscopy (complete versus partial group). Read More

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http://dx.doi.org/10.1007/s00167-019-05347-zDOI Listing
January 2019
2 Reads
2.837 Impact Factor

Confirming the Presence of Unrecognized Meniscal Injuries on Magnetic Resonance Imaging in Pediatric and Adolescent Patients With Anterior Cruciate Ligament Tears.

J Pediatr Orthop 2019 Jan 8. Epub 2019 Jan 8.

Elite Sports Medicine, Connecticut Children's Medical Center.

Background: Prior research has shown decreased accuracy of meniscal injury detection using magnetic resonance imaging (MRI) for anterior cruciate ligament (ACL)-deficient adult patients as well as ACL-deficient pediatric and adolescent patients. The objectives of this study were the following: (1) assess the diagnostic ability of MRI in detecting meniscal injuries for pediatric and adolescent patients undergoing arthroscopic ACL reconstruction and (2) characterize the unrecognized meniscal injuries.

Methods: The sensitivity, specificity, positive predictive value, and negative predictive value of meniscal tears (medial, lateral, or both) on MRI were calculated for the 107 patients in this cohort. Read More

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http://dx.doi.org/10.1097/BPO.0000000000001331DOI Listing
January 2019
9 Reads

Anatomic single-bundle anterior cruciate ligament reconstruction using a calcium phosphate-hybridized tendon graft: a randomized controlled trial with 2 years of follow-up.

J Orthop Surg Res 2018 Dec 29;13(1):327. Epub 2018 Dec 29.

Department of Orthopaedic Surgery, Tsukuba Gakuen Hospital, 2573-1 Kamiyokoba, Tsukuba, Ibaraki, 305-0854, Japan.

Background: To improve tendon-to-bone healing in anterior cruciate ligament (ACL) reconstruction, a novel technique via calcium phosphate (CaP)-hybridized tendon graft using an alternate soaking process was developed. The purpose of this study was to evaluate the clinical results of anatomic single-bundle ACL reconstruction using the CaP-hybridized tendon graft with up to 2 years follow-up, and compare the outcome with conventional ACL reconstruction and preoperative data.

Methods: Ninety patients who required anatomic single-bundle ACL reconstruction were randomized to undergo either the CaP-hybridized tendon graft method (CaP group, n = 45) or the conventional method (conventional group, n = 45). Read More

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http://dx.doi.org/10.1186/s13018-018-1045-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6310947PMC
December 2018
5 Reads

Magnetic resonance imaging appearances of the capsulo-osseous layer of the iliotibial band and femoral attachments of the iliotibial band in the normal and pivot-shift ACL injured knee.

Skeletal Radiol 2019 May 28;48(5):729-740. Epub 2018 Dec 28.

Department of Clinical Imaging, Imperial College Healthcare NHS Trust, Praed Street, London, W2 1NY, UK.

Background: Biomechanical evidence suggests that the anterolateral structures of the knee may be important restraints against anterolateral rotatory instability (ALRI) in the setting of anterior cruciate ligament (ACL) injury.

Objective: To describe the anatomy and presence of injury of the capsule-osseous layer of the iliotibial band (CITB), the iliotibial band, and its deep distal femoral attachments in patients with a 'normal' knee (no pivot-shift bone marrow edema (BME) pattern) and patients with a pivot-shift BME pattern indicative of a pivot-shift injury associated with ACL tears.

Methods: Group 1: 20 consecutive patients with no MRI evidence of pivot-shift injury and group 2: 20 consecutive patients with a pivot-shift BME pattern on MRI were identified. Read More

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http://dx.doi.org/10.1007/s00256-018-3128-9DOI Listing
May 2019
4 Reads
1.743 Impact Factor

Assessment of the Anterolateral Ligament of the Knee by Magnetic Resonance Imaging.

Joints 2018 Sep 2;6(3):153-156. Epub 2018 Nov 2.

Orthopaedic Unit and "Kirk Kilgour" Sports Injury, S. Andrea Hospital, University of Rome "Sapienza," Rome, Italy.

 The purpose of this study was to describe the anatomy of the anterolateral ligament (ALL) of the knee by the use of 1.5 Tesla (T) magnetic resonance imaging (MRI) in a series of young patients without knee injuries.  Subjects aged 18 years or older without an anterior cruciate ligament injury, as confirmed on MRI, were included. Read More

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1675163
Publisher Site
http://dx.doi.org/10.1055/s-0038-1675163DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6301852PMC
September 2018
18 Reads

Comparison of 2 femoral tunnel drilling techniques in anterior cruciate ligament reconstruction. A prospective randomized comparative study.

BMC Musculoskelet Disord 2018 Dec 22;19(1):454. Epub 2018 Dec 22.

Department of Orthopaedic Surgery, Qindao University Medical College Affiliated Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China.

Background: To evaluate the length and position of femoral tunnel,and exam whether knee stability and clinical functional outcomes are superior in AMP method.

Methods: From August 2014 to February 2015, we prospectively recruited 104 patients undergoing anterior cruciate ligament reconstruction. They were randomized to anteromedial portal or transtibial method. Read More

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https://bmcmusculoskeletdisord.biomedcentral.com/articles/10
Publisher Site
http://dx.doi.org/10.1186/s12891-018-2376-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6303949PMC
December 2018
12 Reads

Association between gait mechanics and ultrasonographic measures of femoral cartilage thickness in individuals with ACL reconstruction.

Gait Posture 2018 09 24;65:221-227. Epub 2018 Jul 24.

Department of Kinesiology & Health Science, Utah State University, Logan, UT, USA.

Background: Individuals with anterior cruciate ligament reconstruction (ACLR) are at greater risk for knee osteoarthritis, which may be in part due to altered gait biomechanics. Articular cartilage thickness is typically imaged using magnetic resonance imaging, which is costly and lacks portability. Ultrasonography may provide an alternative imaging method for articular cartilage. Read More

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http://dx.doi.org/10.1016/j.gaitpost.2018.07.174DOI Listing
September 2018
2 Reads

Anatomical Risk Factors of Anterior Cruciate Ligament Injury.

Chin Med J (Engl) 2018 Dec;131(24):2960-2967

Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China.

Background: Nowadays, the anterior cruciate ligament (ACL) injury has been one of the most common diseases of the knee joint. The relationships between the ACL injury and the anatomical structures are still controversial. This study aimed to identify the anatomical risk factors of ACL injury by magnetic resonance imaging (MRI) of the knee. Read More

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http://www.cmj.org/text.asp?2018/131/24/2960/247207
Publisher Site
http://dx.doi.org/10.4103/0366-6999.247207DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6302639PMC
December 2018
7 Reads

The utility of indirect imagistic signs in the diagnosis of anterior cruciate ligament ruptures.

Rom J Morphol Embryol 2018 ;59(3):741-745

Discipline of Psychiatry, Department of Neurosciences, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania;

We conducted a retrospective study, between 2013 and 2018. The study was conducted by analyzing the comparative imaging of two groups of patients. The two groups comprise 42 patients, 14 women and 28 men aged between 17 and 70 years old, to whom objective variables of statistical relevance were tracked. Read More

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December 2018
3 Reads

Influence of anterolateral ligament injuries on stability and second-look arthroscopic findings after allograft transtibial anterior cruciate ligament reconstruction.

Knee 2019 Jan 6;26(1):132-141. Epub 2018 Dec 6.

Department of Orthopaedic Surgery, Dankook University College of Medicine, Cheonan, Republic of Korea.

Background: The purpose of this study was to evaluate the influence of anterolateral ligament (ALL) injuries on stability and second-look arthroscopic findings after anterior cruciate ligament (ACL) reconstruction.

Methods: One-hundred and nineteen consecutive patients underwent a second-look arthroscopic surgery after ACL reconstruction and magnetic resonance imaging (MRI) examination of the ALL. The patients were divided into an ALL intact group (n = 39) and ALL injured group (n = 80). Read More

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http://dx.doi.org/10.1016/j.knee.2018.10.003DOI Listing
January 2019
3 Reads

Deep-learning-assisted diagnosis for knee magnetic resonance imaging: Development and retrospective validation of MRNet.

PLoS Med 2018 11 27;15(11):e1002699. Epub 2018 Nov 27.

Department of Radiology, Stanford University, Stanford, California, United States of America.

Background: Magnetic resonance imaging (MRI) of the knee is the preferred method for diagnosing knee injuries. However, interpretation of knee MRI is time-intensive and subject to diagnostic error and variability. An automated system for interpreting knee MRI could prioritize high-risk patients and assist clinicians in making diagnoses. Read More

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http://dx.plos.org/10.1371/journal.pmed.1002699
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http://dx.doi.org/10.1371/journal.pmed.1002699DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258509PMC
November 2018
32 Reads

Gait speed is more challenging than cognitive load on the stride-to-stride variability in individuals with anterior cruciate ligament deficiency.

Knee 2019 Jan 22;26(1):88-96. Epub 2018 Nov 22.

Department of Physiotherapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.

Background: Several investigations have studied gait variability of individuals with anterior cruciate ligament (ACL) deficiency; however, the effect of dual-tasking on the gait variability of these individuals remained unclear. The aim of the present study was to determine the effect of gait speed and dual-tasking on knee flexion-extension variability in subjects with and without ACL deficiency.

Methods: The knee flexion-extension Lyapunov exponent (LyE) was measured in 22 ACL-deficient (Mean±SD) (25. Read More

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http://dx.doi.org/10.1016/j.knee.2018.11.009DOI Listing
January 2019
1 Read
1.702 Impact Factor

Isolated Tear Of Posterolateral Bundle Of Anterior Cruciate Ligament.

J Ayub Med Coll Abbottabad 2018 Jul-Sep;30(3):468-469

Department of Radiology, Dallah Hospital, Riyadh, Saudi Arabia.

Anterior cruciate ligament injuries are very commonly encountered during routine MRI reporting and various signs have been described for their identification. However, the diagnosis of isolated bundle tears is difficult using MRI, thus can be easily overlooked, especially isolated tear of posterolateral bundle. We present a case of a young male with "Gap" and "Footprint" signs on MRI knee joint, which are considered highly specific of posterolateral ACL bundle tear. Read More

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January 2019
15 Reads

Anterolateral ligament injuries on magnetic resonance imaging and pivot-shift testing for rotational laxity.

J Clin Orthop Trauma 2018 Oct-Dec;9(4):312-316. Epub 2017 Oct 7.

Department of Radiology, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, FL, United States.

Maintaining anterolateral rotational stability of the knee requires a complex set of structures, most notably the anterior cruciate ligament. However, lateral knee structures such as the anterolateral ligament (ALL) also play an important role. There has been controversy over the role the ALL plays in an ACL deficient knee to maintain rotational stability. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09765662173038
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http://dx.doi.org/10.1016/j.jcot.2017.10.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224696PMC
October 2017
17 Reads

Correlation of Meniscal Tear with Timing of Anterior Cruciate Ligament Reconstruction in Patients without Initially Concurrent Meniscal Tear.

J Knee Surg 2018 Nov 16. Epub 2018 Nov 16.

Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.

The incidence of meniscal tear was reported to increase with the delay of anterior cruciate ligament reconstruction (ACLR). The tear may occur concurrently with the ACL injury or after the ACL injury. Few studies had focused on the patients whose meniscus is intact during ACL injury. Read More

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1675783
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http://dx.doi.org/10.1055/s-0038-1675783DOI Listing
November 2018
17 Reads

Does the pre-operative status of the anterior cruciate ligament affect the outcomes following medial open-wedge high tibial osteotomy?

Knee 2018 Dec 8;25(6):1197-1205. Epub 2018 Nov 8.

Department of Orthopedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.

Background: This study aimed to assess the morphological degeneration of the anterior cruciate ligament (ACL) through magnetic resonance imaging (MRI) and arthroscopy. It analyzed whether the pre-operative ACL status would affect the radiologic and clinical outcomes following medial open-wedge high tibial osteotomy (MOWHTO).

Methods: A total of 150 knees were enrolled that underwent MOWHTO concomitant arthroscopic debridement for the treatment of varus osteoarthritis. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09680160183027
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http://dx.doi.org/10.1016/j.knee.2018.10.010DOI Listing
December 2018
17 Reads

[Evaluation of the MRI Findings on a Tendon Graft after the Anatomic Anterior Cruciate Ligament Reconstruction in Patients with Versus without the Application of Platelet-Rich Fibrin - Results of the Prospective Randomised Study].

Acta Chir Orthop Traumatol Cech 2018 ;85(5):343-350

Klinika ortopedie a traumatologie pohybového ústrojí Lékařské fakulty Univerzity Karlovy a Fakultní nemocnice Plzeň.

PURPOSE OF THE STUDY The purpose of the prospective randomised study was to assess the benefits of the platelet-rich fibrin (PRF) application during the anatomic anterior cruciate ligament reconstruction (ACLR) for tendon graft healing. MATERIAL AND METHODS The study included 40 patients with an isolated rupture of the anterior cruciate ligament in the knee. The MRI findings on the tendon graft were evaluated at 6 months and 12 months after the surgery in a total of 33 patients, namely in 10 women/23 men (21 right knee/12 left knee), with the mean age of 29. Read More

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February 2019
2 Reads

Detachment and Intra-Articular Migration of a Bone Patella Tendon Bone Graft in ACL Reconstruction.

J Long Term Eff Med Implants 2018 ;28(2):155-160

Trauma and Orthopaedic Department, East Surrey Hospital, Surrey and Sussex Healthcare NHS Trust.

The frequency of anterior cruciate ligament (ACL) reconstruction performed worldwide has been significantly increasing per year. Despite the common nature of the procedure, controversy remains regarding the natural history of ACL injuries, surgical technique, graft choice, and long-term outcomes. We present a case report of a 33-year-old male who had a history of an ACL reconstruction that was performed 12 years ago using bone patella tendon bone (BPTB) graft, by using a press-fit femoral technique. Read More

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http://dx.doi.org/10.1615/JLongTermEffMedImplants.2018026583DOI Listing
January 2018
15 Reads

Abnormal tibial alignment is a risk factor for lateral meniscus posterior root tears in patients with anterior cruciate ligament ruptures.

Knee Surg Sports Traumatol Arthrosc 2019 Feb 4;27(2):590-595. Epub 2018 Oct 4.

Department of Orthopaedic Surgery, Henry Ford Health System, Henry Ford Hospital, 2799 W. Grand Blvd, Detroit, MI, 48202, USA.

Purpose: The purpose of this study was to identify if abnormal tibial alignment was a risk factor for lateral meniscus posterior root tears (LMPRT) in patients with acute anterior cruciate ligament (ACL) ruptures.

Methods: The medical charts of 200 patients treated for ACL ruptures between 2013 and 2016 were retrospectively reviewed and evaluated. MRI images and reports were assessed for concurrent meniscal tears. Read More

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http://dx.doi.org/10.1007/s00167-018-5171-4DOI Listing
February 2019
19 Reads
2.837 Impact Factor

The unhappy triad of the knee re-revisited.

Int Orthop 2019 Jan 1;43(1):223-228. Epub 2018 Oct 1.

"La Sapienza" University of Rome, Sant'Andrea Hospital, Traumatology Sports Center "Kilk Kilgour", Via Di Grottarossa, 1035-1039, Rome, RM, Italy.

Aim Of The Study: To describe the surgical findings of the anterolateral complex in patients with the "unhappy triad" lesion of the knee.

Method: One hundred and twenty-five consecutive patients presenting with acute anterior cruciate ligament (ACL) tears were selected for this study. Only cases, evaluated with a valgus stress test under fluoroscopy, with a medial opening more than 5 mm of the medial collateral ligament (MCL) were included in the study (11 patients). Read More

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http://dx.doi.org/10.1007/s00264-018-4181-7DOI Listing
January 2019
5 Reads

Can the Anterolateral Ligament Be Reliably Identified in Anterior Cruciate Ligament-Intact and Anterior Cruciate Ligament-Injured Knees on 3-T Magnetic Resonance Imaging?

Orthop J Sports Med 2018 Sep 24;6(9):2325967118796452. Epub 2018 Sep 24.

Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio, USA.

Background: The anterolateral ligament (ALL) has been described as an extracapsular stabilizer of knee rotational stability. Investigators have shown a renewed interest in the ALL and further evaluated its anatomy and biomechanical role as a knee stabilizer. The appearance of the ALL on magnetic resonance imaging (MRI) remains inconsistent across the literature. Read More

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http://journals.sagepub.com/doi/10.1177/2325967118796452
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http://dx.doi.org/10.1177/2325967118796452DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6153540PMC
September 2018
13 Reads

[Anterior Cruciate Ligament Tears - Influence on Terminal Extension].

Acta Chir Orthop Traumatol Cech 2018 ;85(1):22-28

Ortopedická klinika 1. lékařské fakulty Univerzity Karlovy a Nemocnice Na Bulovce, Praha.

PURPOSE OF THE STUDY The aim of this paper was to compare terminal extension in normal and anterior cruciate ligament (ACL) deficient knees, and therefore to determine the role of the ACL during this motion. MATERIAL AND METHODS Ten knees with ACL tears (7 knees with recent ACL tears, 3 knees with long-standing tears) and 10 normal contralateral knees have been examined using MRI in passive hyperextension, 20° flexion and 20° flexion with a 9 kg posteriorly directed load on the femur. Movements of the femoral condyles on the tibia were calculated using previously described methods. Read More

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January 2019
4 Reads

Meniscal repair concurrent with anterior cruciate ligament reconstruction restores posterior shift of the medial meniscus in the knee-flexed position.

Knee Surg Sports Traumatol Arthrosc 2019 Feb 24;27(2):361-368. Epub 2018 Sep 24.

Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.

Purpose: The purpose of this study was to evaluate the shape and shift of the medial meniscus before and after meniscal repair concurrent with anterior cruciate ligament (ACL) reconstruction using magnetic resonance imaging (MRI) at 90° of knee flexion.

Methods: This study included 18 patients with ACL-deficient knees without meniscus tears (group A), 11 patients with medial meniscus tears alone (group M), and 15 patients with ACL-deficient knees complicated with medial meniscus tears (group AM). The posterior segment shape was evaluated using open MRI at 90° of knee flexion preoperatively and at 3 months postoperatively. Read More

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http://dx.doi.org/10.1007/s00167-018-5157-2DOI Listing
February 2019

Tunnel osteolysis post-ACL reconstruction: a systematic review examining select diagnostic modalities, treatment options and rehabilitation protocols.

Knee Surg Sports Traumatol Arthrosc 2019 Feb 21;27(2):524-533. Epub 2018 Sep 21.

Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada.

Purpose: The purpose of this systematic review was to (1) identify the optimal diagnostic modality for tunnel widening in skeletally mature patients; (2) identify potentially modifiable risk factors for tunnel widening, such as graft type, and (3) determine what elements of a post-operative rehabilitation program exert the most influence on TW.

Methods: The electronic databases MEDLINE, EMBASE, PubMed, and Cochrane Library were searched from database inception to January 2018. Studies that discussed tunnel widening following anterior cruciate ligament reconstruction (ACLR) of skeletally mature patients and written in English were included. Read More

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http://dx.doi.org/10.1007/s00167-018-5142-9DOI Listing
February 2019

Uncovered Medial Meniscus Sign on Knee MRI: Evidence of Lost Brake Stop Mechanism of the Posterior Horn Medial Meniscus.

AJR Am J Roentgenol 2018 Dec 21;211(6):1313-1318. Epub 2018 Sep 21.

1 Department of Radiology, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, South Korea.

Objective: The objective of our study was to evaluate the association between anterior tibial translation and injuries on the posterior horn medial meniscus (PHMM) and the integrity of the brake stop mechanism of the PHMM in the anterior cruciate ligament (ACL)-deficient knee.

Materials And Methods: This retrospective study included 85 consecutive patients with an arthroscopically confirmed complete ACL tear. Anterior tibial translation was quantitatively measured using sagittal MRI at the midpoint of the lateral femoral condyle. Read More

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http://dx.doi.org/10.2214/AJR.18.19611DOI Listing
December 2018
5 Reads

Intrasubstance Anterior Cruciate Ligament Injuries in the Pediatric Population.

Indian J Orthop 2018 Sep-Oct;52(5):513-521

Department of Orthopaedic Surgery and Rehabilitation Medicine, State University of New York (SUNY), Downstate Medical Center, Brooklyn, NY, USA.

Pediatric intrasubstance anterior cruciate ligament (ACL) tears have a significant epidemiologic impact as their numbers continue to grow globally. This review focuses on true pediatric intrasubstance ACL tears, which occur >400,000 times annually. Modifiable and non-modifiable risk factors include intercondylar notch width, ACL size, gender, landing mechanisms, and hormonal variations. Read More

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http://dx.doi.org/10.4103/ortho.IJOrtho_381_17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142791PMC
September 2018
2 Reads

Is anterolateral ligament rupture a reason for persistent rotational instability after anterior cruciate ligament reconstruction?

Knee 2018 Dec 13;25(6):1033-1039. Epub 2018 Sep 13.

Acıbadem Bakırköy Hospital, Orthopaedics and Traumatology Department, İstanbul, Turkey.

Background: The aim of the present study was to evaluate the clinical role of anterolateral ligament (ALL) rupture and its impact on rotational stability by comparing the clinical results and rotational stability between reconstructed anterior cruciate ligament (ACL) with intact ALL knees and reconstructed ACL with ALL injured knees.

Methods: A total of 69 patients who had undergone surgery for ACL reconstruction and had received a minimum of two years of follow-up were included. Patients were divided into two groups with respect to the presence of ALL rupture on knee magnetic resonance imaging. Read More

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http://dx.doi.org/10.1016/j.knee.2018.08.010DOI Listing
December 2018
6 Reads

Magnetic Resonance Imaging-Based Prevalence of Anterolateral Ligament Abnormalities and Associated Injuries in Knees with Acute Anterior Cruciate Ligament Injury.

J Knee Surg 2018 Sep 6. Epub 2018 Sep 6.

Department of Orthopaedic Surgery, Hanyang University Seoul Hospital, Seongdong-gu, Seoul, Republic of Korea.

The purpose of this study was to determine and compare the prevalence of anterolateral ligament abnormality and associated injuries among patients with complete and partial anterior cruciate ligament tears. In addition, the prevalence of associated injuries with anterolateral ligament abnormality was further analyzed. Of the 158 patients diagnosed with acute anterior cruciate ligament tear, 82 patients were diagnosed with acute complete anterior cruciate ligament confirmed by magnetic resonance imaging (MRI) and arthroscopic procedures (Group C), and 74 patients were diagnosed with acute partial anterior cruciate ligament tears confirmed by MRI (Group P). Read More

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http://dx.doi.org/10.1055/s-0038-1669449DOI Listing
September 2018
35 Reads

Epidemiology of Existing Extensor Mechanism Pathology in Primary Anterior Cruciate Ligament Ruptures in an Active-Duty Population.

Am J Orthop (Belle Mead NJ) 2018 Aug;47(8)

Tripler Army Medical Center, Honolulu, HI.

The purpose of this study is to determine the prevalence of potential graft-influencing pathologies of the extensor mechanism of the knee in patients presenting with a primary anterior cruciate ligament (ACL) rupture. We performed a retrospective review of the plain radiographs and magnetic resonance imaging (MRI) of all active-duty patients presenting with a primary ACL rupture at our institution between July 2006 and February 2009. Imaging was reviewed to determine the presence of a multipartite patella, unresolved Osgood-Schlatter's disease, and/or radiographic evidence suggestive of patella tendinopathy. Read More

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http://dx.doi.org/10.12788/ajo.2018.0068DOI Listing
August 2018
5 Reads

Imaging of the Postoperative Condition of Posterolateral Corner Injuries.

Semin Musculoskelet Radiol 2018 Sep 22;22(4):413-423. Epub 2018 Aug 22.

University of Toronto, Toronto, Ontario, Canada.

Posterolateral corner (PLC) injuries of the knee are often sustained in combination with anterior or posterior cruciate ligament injuries. A variety of surgical techniques including acute repair, nonanatomical reconstructions, and anatomical reconstructions have been used to treat grade III PLC injuries. Scant literature is available on postoperative imaging of the PLC. Read More

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http://dx.doi.org/10.1055/s-0038-1653957DOI Listing
September 2018
22 Reads

Knee Imaging Following Anterior Cruciate Ligament Reconstruction: The Surgeon's and Radiologist's Perspectives.

Semin Musculoskelet Radiol 2018 Sep 22;22(4):386-397. Epub 2018 Aug 22.

Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California.

Anterior cruciate ligament (ACL) tears are common injuries that if left untreated can result in chronic instability, cartilage damage, meniscal tears, and ligamentous injuries, eventually leading to early osteoarthritis. ACL reconstruction surgeries are therefore increasingly being performed. Despite the fact that most patients achieve excellent postoperative results, patients can present with recurrent instability and pain. Read More

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http://dx.doi.org/10.1055/s-0038-1653953DOI Listing
September 2018
4 Reads

Low Accuracy of Diagnostic Codes to Identify Anterior Cruciate Ligament Tear in Orthopaedic Database Research.

Am J Sports Med 2018 Oct 20;46(12):2894-2898. Epub 2018 Aug 20.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA.

Background: Database research is being used in orthopaedic literature with increased regularity. The main limitation of database research is the absence of diagnosis and treatment verification afforded by medical chart review. This absence may limit the accuracy of some conclusions and recommendations produced by database research. Read More

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http://dx.doi.org/10.1177/0363546518790507DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6407707PMC
October 2018
31 Reads