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knee ligaments pathology

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https://www.readbyqxmd.com/read/29898472/mucoid-degeneration-of-the-anterior-cruciate-ligament-characterization-of-natural-history-femoral-notch-width-index-and-patient-reported-outcome-measures
#1
Andrew J Hotchen, Charis Demetriou, Dennis Edwards, Joel T K Melton
The presentation and clinical course of mucoid degeneration of the anterior cruciate ligament (MD-ACL) are poorly documented within the literature. Subsequently, it is under-diagnosed and the optimal management strategy remains ill-defined. Here, we characterize the syndrome associated with MD-ACL and compare the natural clinical course with the outcomes of arthroscopic management. Thirty-one patients with radiological features of MD-ACL over a 2-year period had their clinical notes retrospectively reviewed...
June 13, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29887503/incidence-and-risk-factors-of-knee-injuries-associated-with-ipsilateral-femoral-shaft-fractures-a-multicentre-retrospective-analysis-of-429-femoral-shaft-injuries
#2
Seong-Eun Byun, Hyun-Chul Shon, Jai Hyung Park, Hyoung Keun Oh, Young-Ho Cho, Ji Wan Kim, Jae-Ang Sim
A femoral shaft fracture is usually a high-energy injury and, thus, is likely to be accompanied by an injury of adjacent joints such as a knee ligament injury. However, these associated injuries are often neglected because of severe pain and deformity. The purpose of the current study is to evaluate the incidence, type and risk factors of ipsilateral knee injuries associated with femoral shaft fractures. A total of 429 femoral shaft fractures were included in this study from January 2010 to September 2015. There were 320 males and 109 females, with mean age of 40...
June 4, 2018: Injury
https://www.readbyqxmd.com/read/29881886/greater-magnitude-tibiofemoral-contact-forces-are-associated-with-reduced-prevalence-of-osteochondral-pathologies-2-3-years-following-anterior-cruciate-ligament-reconstruction
#3
David John Saxby, Adam L Bryant, Ans Van Ginckel, Yuanyuan Wang, Xinyang Wang, Luca Modenese, Pauline Gerus, Jason M Konrath, Karine Fortin, Tim V Wrigley, Kim L Bennell, Flavia M Cicuttini, Christopher Vertullo, Julian A Feller, Tim Whitehead, Price Gallie, David G Lloyd
PURPOSE: External loading of osteoarthritic and healthy knees correlates with current and future osteochondral tissue state. These relationships have not been examined following anterior cruciate ligament reconstruction. We hypothesised greater magnitude tibiofemoral contact forces were related to increased prevalence of osteochondral pathologies, and these relationships were exacerbated by concomitant meniscal injury. METHODS: This was a cross-sectional study of 100 individuals (29...
June 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29852514/intra-articular-biocompatibility-of-multistranded-long-chain-polyethylene-suture-tape-in-a-canine-acl-model
#4
Patrick A Smith, Chantelle C Bozynski, Keiichi Kuroki, Sarah M Henrich, Coen A Wijdicks, James L Cook
The purpose of this study was to assess intra-articular use of a nonabsorbable braided suture tape for its biocompatibility when implanted adjacent to the native anterior cruciate ligament (ACL) in a canine model. Establishing biocompatibility of suture tape in the knee is an important foundational step for clinicians considering use of suture tape augmentation for ACL reconstruction or repair. The study hypothesis was that a nonabsorbable braided suture tape would be biocompatible in the knee with no resultant adverse functional consequences, and no significant intra-articular synovial reactions or articular cartilage degeneration attributable to direct exposure to the suture tape, whether intact or transected...
May 31, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29842918/intra-articular-clearance-of-labeled-dextrans-from-naive-and-arthritic-rat-knee-joints
#5
Timothy K Mwangi, Ian Berke, Eduardo H Nieves, Richard D Bell, Samuel B Adams, Lori A Setton
OBJECTIVE: Determine the effects of arthritis on the trans-synovial clearance of small and large model compounds following local delivery to the knee joint in a rat model. DESIGN: Intra-articular delivery was studied in rat knee joints in an osteoarthritis model of knee joint instability (medial collateral ligament and meniscus transection model or MMT). Fluorescently-labeled 10 kDa or 500 kDa dextran was injected in the arthritic or unoperated control (naive) joints 3 weeks after surgical destabilization, and the temporal clearance pattern was evaluated via in vivo regional fluorescence imaging, dextran concentrations in plasma and draining lymph nodes, and by quantification of fluorescence in histological synovium sections...
May 26, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29806434/-effect-of-icariin-on-serum-bone-turnover-markers-expressions-and-histology-changes-in-mouse-osteoarthritis-model
#6
Kanda Gao, Shuyang Wang, Qiugen Wang
Objective: To investigate the effects of icariin (ICA) on serum bone turnover markers expressions and histological changes of cartilage and subchondral bone in mouse osteoarthritis (OA) model. Methods: Eighty 8-week-old male C57BL/6J mouse were randomly divided into 8 groups ( n =10). The OA model was established by anterior cruciate ligament transaction (ACLT). Group A: sham operation/early-stage normal saline administration; group B: sham operation/early-stage ICA administration; group C: ACLT/early-stage normal saline administration; group D: ACLT/early-stage ICA administration; group E: sham operation/late-stage normal saline administration; group F: sham operation/late-stage ICA administration; group G: ACLT/late-stage normal saline administration; group H: ACLT/late-stage ICA administration...
August 1, 2017: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29789252/a-history-of-anterior-cruciate-ligament-reconstruction-at-the-national-football-league-combine-results-in-inferior-early-national-football-league-career-participation
#7
Matthew T Provencher, James P Bradley, Jorge Chahla, Anthony Sanchez, Brendin R Beaulieu-Jones, Justin W Arner, Nicholas I Kennedy, George Sanchez, Mitchell I Kennedy, Gilbert Moatshe, Mark E Cinque, Robert F LaPrade
PURPOSE: To evaluate whether players with a history of an anterior cruciate ligament reconstruction (ACLR) before the National Football League (NFL) Combine played or started fewer games and/or participated in fewer eligible snaps compared with NFL Combine participants without a history of knee injury or surgery. METHODS: We performed a retrospective review of all players who participated in the NFL Combine between 2009 and 2015 and who had a history of an ACLR...
May 19, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29754495/evaluation-of-anterior-intermeniscal-ligament-in-discoid-lateral-meniscus-cases-and-presenting-the-accompanying-meniscal-pathologies-with-mri
#8
Ali Koç, Turgut Tursem Tokmak, Özgür Karabıyık, Gamze Türk
Background Although several studies were conducted to put forth the biomechanical function of anterior intermeniscal ligament (AIML) on the stability of meniscal structures, there are few data on the etiology of the early degeneration of discoid type compared to the normal shaped ones. Purpose To determine the AIML subtypes and accompanying meniscal pathologies in discoid lateral menisci (DLM) on knee MRI exams. Material and Methods Knee MRI exams of 171 individuals with DLM were reviewed. DLMs and AIMLs were typed according to Watanabe's classification and Nelson-Laprade classification, respectively...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29752638/avoiding-complications-with-mpfl-reconstruction
#9
REVIEW
Marvin K Smith, Brian C Werner, David R Diduch
PURPOSE OF REVIEW: To discuss the potentially significant complications associated with medial patellofemoral ligament (MPFL) reconstruction. Additionally, to review the most current and relevant literature with an emphasis on avoiding these potential complications. RECENT FINDINGS: Multiple cadaveric studies have characterized the anatomy of the MPFL and the related morphologic abnormalities that contribute to recurrent lateral patellar instability. Such abnormalities include patella alta, excessive tibial tubercle to trochlear grove (TT-TG) distance, trochlear dysplasia, and malalignment...
May 12, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29653442/examination-under-anesthesia-in-patients-with-recurrent-patellar-dislocation-prognostic-study
#10
Ismail Fathalla, James Holton, Tanweer Ashraf
Surgical management of patellar instability is a matter of wide debate. While some authors believe that isolated medial patellofemoral ligament (MPFL) reconstruction is sufficient, others advocate procedures to treat the underlying pathology, namely, patella alta and trochlear dysplasia. Radiological studies have been traditionally used as a determinant of these pathologies and to determine the need for an additional procedure. The value of examination under anesthesia (EUA) in formulating a treatment plan remains unknown...
April 13, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29574492/the-anterior-knee-normal-variants-common-pathologies-and-diagnostic-pitfalls-on-mri
#11
REVIEW
Yong Wei Liu, Matthew R Skalski, Dakshesh B Patel, Eric A White, Anderanik Tomasian, George R Matcuk
The anterior aspect of the knee is host to an array of normal variants and potential pathology. These normal anatomic variants are often encountered and may mimic pathologies, leading to unnecessary work-up and treatments. On the other hand, there are several subtle abnormalities that may be easily overlooked or mistaken for variants or other injuries or diseases. Recognition of these diagnostic challenges is essential for radiologists to make an accurate diagnosis. This article reviews normal anatomical variants of ligaments, tendons, bones, and other important structures of the anterior knee, focusing on magnetic resonance imaging features...
March 25, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29544985/dynamic-tracking-influenced-by-anatomy-following-medial-patellofemoral-ligament-reconstruction-computational-simulation
#12
John J Elias, Kerwyn C Jones, S Cyrus Rezvanifar, Joseph N Gabra, Melanie A Morscher, Andrew J Cosgarea
BACKGROUND: Continued patellar instability can occur following medial patellofemoral ligament (MPFL) reconstruction. Computational simulation of function was used to investigate the influence of the lateral position of the tibial tuberosity, trochlear dysplasia and patella alta on lateral patellar tracking following MPFL reconstruction. METHODS: Multibody dynamic simulation models were developed to represent nine knees being treated for recurrent patellar instability...
March 2018: Knee
https://www.readbyqxmd.com/read/29516122/medial-meniscal-and-chondral-pathology-at-the-time-of-revision-anterior-cruciate-ligament-reconstruction-results-in-inferior-mid-term-patient-reported-outcomes
#13
Kate E Webster, Julian A Feller, Alexander Kimp, Brian M Devitt
PURPOSE: Anterior cruciate ligament (ACL) injuries are frequently not isolated injuries and damage to the menisci and articular cartilage surfaces is common. The concomitant presence of meniscal and chondral damage has the potential to influence patient outcomes following ACL reconstruction surgery and especially following revision ACL reconstruction where these findings are more common. However, study results regarding the mid-term outcome have been inconsistent. The purpose of this study was to compare mid-term patient-reported outcomes and return to sport in patients with and without meniscal and chondral pathology at the time of revision ACL reconstruction surgery...
April 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29498035/variations-in-internal-structure-composition-and-protein-distribution-between-intra-and-extra-articular-knee-ligaments-and-tendons
#14
Yalda A Kharaz, Elizabeth G Canty-Laird, Simon R Tew, Eithne J Comerford
Tendons and ligaments play key roles in the musculoskeletal system in both man and animals. Both tissues can undergo traumatic injury, age-related degeneration and chronic disease, causing discomfort, pain and increased susceptibility to wider degenerative joint disease. To date, tendon and ligament ultrastructural biology is relatively under-studied in healthy, non-diseased tissues. This information is essential to understand the pathology of these tissues with regard to function-related injury and to assist with the future development of tissue-engineered tendon and ligament structures...
March 2, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29453795/inflammatory-and-degenerative-phases-resulting-from-anterior-cruciate-rupture-in-a-non-invasive-murine-model-of-post-traumatic-osteoarthritis
#15
Sophie J Gilbert, Cleo S Bonnet, Paulina Stadnik, Victor C Duance, Deborah J Mason, Emma J Blain
Joint injury is the predominant risk factor for post-traumatic osteoarthritis development (PTOA). Several non-invasive mouse models mimicking human PTOA investigate molecular mechanisms of disease development; none have characterized the inflammatory response to this acute traumatic injury. Our aim was to characterize the early inflammatory phase and later degenerative component in our in vivo non-invasive murine model of PTOA induced by anterior cruciate ligament (ACL) rupture. Right knees of 12-week-old C57Bl6 mice were placed in flexion at a 30° offset position and subjected to a single compressive load (12N, 1...
February 17, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29453584/variations-in-the-attachments-of-the-medial-meniscal-anterior-horn-a-descriptive-cadaveric-study
#16
Innocent Ouko, James Kigera, Kevin Ongeti, Anne Pulei
PURPOSE: Meniscal tears are common in Kenya, with prevalence rates ranging from 45 to 78% of intracapsular knee pathology. Diagnosis of these injuries relies on the use of both clinical signs and symptoms as well as radiological investigations. In a few instances, radiological detection could be difficult, partly because of variant attachment patterns of the medial meniscal anterior horn. Some of these unusual attachments of the anterior horn of the medial meniscus could even be mistaken for meniscal tears...
February 16, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29424175/-experimental-study-on-staphylococcal-enterotoxin-promoting-tendon-bone-healing-after-reconstruction-of-anterior-cruciate-ligament-in-rabbits
#17
Chun-Bao Li, Chao Xue, Wei Qi, Ning Wang, Jing Xue, Xiao-Yong Wu, Juan-Li Zhu, Yang Liu, Yu-Jie Liu
OBJECTIVE: To explore highly agglutinative staphylococcin (HAS) pomoting on tendon-bone healing after reconstruction of anterior cruciate ligament(ACL) in rabbits. METHODS: Animal model of ACL reconstruction in 24 mature New Zealand white rabbits(3 months, 2.56 kg on average, either gender) were established using autologous digital long extensor tendon and randomly classified into 2 groups(HAS and control group), 12 rabbits for each group. HAS group was separately injected 0...
June 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29409066/extensor-mechanism-injury-in-the-pediatric-population-a-clinical-review
#18
William Cody Sessions, Matthew Herring, Walter H Truong
The extensor mechanism of the knee-consisting of the four muscles of the quadriceps, the quadriceps tendon, the patella, and the patellar ligament-is essential for lower extremity function during both standing and ambulation. The presence of articular cartilage and growing physes in the pediatric knee, coupled with the generation of significant tensile force, creates an opportunity for pathology unique to the pediatric population.Tibial tubercle fractures and patella injuries are quite rare, and even pediatric-trained orthopaedic surgeons may not be exposed to these injuries on a regular basis...
February 6, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29407520/effect-of-whole-body-vibration-on-sagittal-plane-running-mechanics-in-individuals-with-anterior-cruciate-ligament-reconstruction-a-randomized-crossover-trial
#19
Derek N Pamukoff, Melissa M Montgomery, Kevin H Choe, Tyler J Moffit, Michael N Vakula
OBJECTIVE: To examine the effect of whole-body vibration (WBV) on running biomechanics in individuals with anterior cruciate ligament reconstruction (ACLR). DESIGN: Single-blind randomized crossover trial. SETTING: Research laboratory. PARTICIPANTS: Individuals (N=20) with unilateral ACLR (age [± SD]=22.3 [±3.3] years; mass=71.8 [±15.3] kg; time since ACLR=44.9 [±22.8] months; 15 females, 10 patellar tendon autograft, 7 hamstrings autograft, 3 allograft; International Knee Documentation Committee Score=83...
May 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29402584/anteromedial-meniscofemoral-ligament-of-the-anterior-horn-of-the-medial-meniscus-clinical-magnetic-resonance-imaging-and-arthroscopic-features
#20
Young Mo Kim, Yong-Bum Joo
PURPOSE: To describe the clinical, arthroscopic, and magnetic resonance imaging (MRI) findings of knees with anomalous insertion of the anterior horn of the medial meniscus (AHMM) into the intercondylar notch via an anteromedial meniscofemoral ligament (AMMFL). METHODS: A total of 2,503 arthroscopic knee surgeries performed from July 2003 to October 2016 were reviewed retrospectively to identify knees with an AMMFL. Medical records, arthroscopic photographs, and MRI of identified cases were analyzed...
May 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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