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knee ligaments pathology

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https://www.readbyqxmd.com/read/29233184/effects-of-angelicae-pubescentis-and-loranthi-decotion-on-repairing-knee-joint-cartilages-in-rats
#1
Shun Lyu, Bin Ji, Wenwu Gao, Xianqi Chen, Xiaotao Xie, Junjie Zhou
BACKGROUND: Knee osteoarthritis (KOA) is a common orthopedics disease and its pathological changes at early stage are the damage and loss of articular cartilage. Traditional Chinese medicine (TCM) prescription contains multiple components and has the unique advantages of the diversity of targets.We compared the traditional Chinese medical formulae (Angelicae Pubescentis and Loranthi decotion, APLD, or Duhuo Jisheng) with a western medicine (glucosamine sulfate, GS) to treat the rat arthritis models, and tracked the outcomes...
December 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29225019/primary-versus-revision-anterior-cruciate-ligament-reconstruction-patient-demographics-radiographic-findings-and-associated-lesions
#2
Justin J Mitchell, Mark E Cinque, Grant J Dornan, Lauren M Matheny, Chase S Dean, Brad Kruckeberg, Gilbert Moatshe, Jorge Chahla, Robert F LaPrade
PURPOSE: The purpose of this study was to evaluate the differences in intra-articular pathology, demographic characteristics, and radiographic characteristics of the knee associated with primary anterior cruciate ligament reconstruction (ACLR) versus revision ACLR at the time of initial presentation with either a native anterior cruciate ligament tear or an anterior cruciate ligament graft tear. Secondarily, we aimed to investigate risk factors for concomitant medial and lateral meniscal tears and cartilage injuries at the time of ACLR...
December 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29201194/protective-effect-of-zoledronic-acid-on-articular-cartilage-and-subchondral-bone-of-rabbits-with-experimental-knee-osteoarthritis
#3
Guorong She, Ziqi Zhou, Zhengang Zha, Fei Wang, Xiaoting Pan
Subchondral bone reabsorption and remodeling are responsible for the initiation and progression of osteoarthritis (OA). Zoledronic acid (ZOL), a third-generation bisphosphonate (BIS), is an inhibitor of bone reabsorption. However, the intervention effect of ZOL on OA has not been fully characterized and remains to be directly demonstrated in animal experiments. The present study examined the microscopic and macroscopic changes in the anterior cruciate ligament transection (ACLT) model of OA in rabbits and evaluated the effects of ZOL on cartilage degeneration and subchondral bone loss...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29189474/pediatric-acl-reconstruction-and-return-to-the-operating-room-revision-is-less-than-half-of-the-story
#4
Christopher J DeFrancesco, Eileen P Storey, John M Flynn, Theodore J Ganley
BACKGROUND: Although there are several causes of unplanned return to the operating room (RTOR) following pediatric anterior cruciate ligament (ACL) reconstruction (ACLR), prior outcomes studies focus primarily on the risk of graft failure. We sought to comprehensively describe indications for RTOR in pediatric primary ACLR patients, estimate associated rates of RTOR, and assess the impact of concomitant meniscal procedures on these rates. METHODS: This retrospective cohort study considered patients who underwent primary ACLR at an urban, pediatric tertiary care hospital between 2013 and 2015...
November 20, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29152439/anterior-cruciate-ligament-ganglion-cyst-and-mucoid-degeneration-a-review
#5
REVIEW
Raju Vaishya, Abdulrazaq Esin Issa, Amit Kumar Agarwal, Vipul Vijay
Mucoid degeneration and ganglion cyst are two distinct non-traumatic lesions of the anterior cruciate ligament (ACL) that most commonly occur discretely but occasionally coexist. They are relatively uncommon, and their exact aetiopathogenesis is still not clear. ACL ganglion cyst occurs more frequently among relatively younger patients compared to mucoid degeneration. They could be asymptomatic and discovered incidentally while evaluating the knee for other pathologies. Symptomatic cases of the two conditions present with nonspecific chronic pain, painful limitation of terminal flexion and extension, and mechanical block (among other symptoms), similar to that of other internal derangement pathologies of the knee...
September 13, 2017: Curēus
https://www.readbyqxmd.com/read/29067474/restoring-tibiofemoral-alignment-during-acl-reconstruction-results-in-better-knee-biomechanics
#6
Frantzeska Zampeli, Ioannis Terzidis, João Espregueira-Mendes, Jim-Dimitris Georgoulis, Manfred Bernard, Evangelos Pappas, Anastasios D Georgoulis
PURPOSE: Anterior cruciate ligament (ACL) reconstruction (ACLR) aims to restore normal knee joint function, stability and biomechanics and in the long term avoid joint degeneration. The purpose of this study is to present the anatomic single bundle (SB) ACLR that emphasizes intraoperative correction of tibiofemoral subluxation that occurs after ACL injury. It was hypothesized that this technique leads to optimal outcomes and better restoration of pathological tibiofemoral joint movement that results from ACL deficiency (ACLD)...
October 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29066269/contact-versus-noncontact-anterior-cruciate-ligament-injuries-is-mechanism-of-injury-predictive-of-concomitant-knee-pathology
#7
Hytham S Salem, Weilong J Shi, Bradford S Tucker, Christopher C Dodson, Michael G Ciccotti, Kevin B Freedman, Steven B Cohen
PURPOSE: To determine if mechanism of injury is predictive of concomitant knee pathology found at the time of anterior cruciate ligament (ACL) reconstruction. METHODS: All patients aged 16 to 35 who underwent ACL reconstruction at our institution between January 2009 and December 2015 were retrospectively reviewed. Mechanism of injury was determined from patient history. The presence of meniscal or chondral damage was determined from operative records, while collateral ligament injuries were determined by the treating surgeon's diagnosis after physical examination and their review of magnetic resonance imaging findings...
October 21, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29059114/findings-associated-with-knee-pathology-on-mri-in-patients-without-osteoarthritis
#8
James D Wylie, Christopher A Makarewich, Zach M Working, Lance Jacobson, Robert L Schmidt, Julia R Crim, Robert T Burks
INTRODUCTION: We conducted a retrospective study in patients with minimal or no radiographically evident knee osteoarthritis to determine whether presenting signs and symptoms were predictive of knee pathology that was evident on MRI and could be treated with nonarthroplasty knee surgery or could alter nonsurgical treatment. METHODS: We reviewed records of patients for whom sports medicine orthopaedic surgeons had ordered an MRI of the knee. Univariate analysis identified factors that were associated with positive MRI findings (eg, surgically treatable lesion, meniscal tear) or a finding that could alter treatment...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29059112/the-posteromedial-corner-of-the-knee-anatomy-pathology-and-management-strategies
#9
Andrew P Dold, Stephanie Swensen, Eric Strauss, Michael Alaia
The posteromedial corner of the knee encompasses five medial structures posterior to the medial collateral ligament. With modern MRI systems, these structures are readily identified and can be appreciated in the context of multiligamentous knee injuries. It is recognized that anteromedial rotatory instability results from an injury that involves both the medial collateral ligament and the posterior oblique ligament. Like posterolateral corner injuries, untreated or concurrent posteromedial corner injuries resulting in rotatory instability place additional strain on anterior and posterior cruciate ligament reconstructions, which can ultimately contribute to graft failure and poor clinical outcomes...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29040061/validation-of-a-novel-biomechanical-test-bench-for-the-knee-joint-with-six-degrees-of-freedom
#10
Christian H Heinrichs, Dominik Knierzinger, Hannes Stofferin, Werner Schmoelz
A novel biomechanical test bench has been developed for in-vitro evaluation of the knee joint. The test bench allows the kinematics of the knee joint to be studied in all six degrees of freedom. Flexion-extension knee movements are induced by quadriceps and hamstring muscle forces simulated by five pneumatic cylinders. The kinematics of the knee and the actively applied muscle forces are measured simultaneously. The aim of this study was to validate the sensitivity and reproducibility of this novel test bench...
October 17, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/29020716/improving-joint-pain-and-function-in-osteoarthritis
#11
REVIEW
Claire Owens, Philip G Conaghan
Osteoarthritis has become a major chronic pain condition. It affects more than 10% of adults and accounts for almost 10% of health service resources. The impact of osteoarthritis is amplified by underuse of effective muscle strengthening exercises and a focus on often less effective and poorly tolerated analgesic therapies. Although traditionally considered to be primarily a disease of cartilage, there is now ample evidence that typical clinical osteoarthritis involves multiple tissue pathologies. Increased BMI is associated with a higher incidence of knee osteoarthritis...
December 2016: Practitioner
https://www.readbyqxmd.com/read/28987873/hip-joint-biomechanics-in-those-with-and-without-post-traumatic-knee-osteoarthritis-after-anterior-cruciate-ligament-injury
#12
E Wellsandt, J A Zeni, M J Axe, L Snyder-Mackler
BACKGROUND: Anterior cruciate ligament injury results in altered kinematics and kinetics in the knee and hip joints that persist despite surgical reconstruction and rehabilitation. Abnormal movement patterns and a history of osteoarthritis are risk factors for articular cartilage degeneration in additional joints. The purpose of this study was to determine if hip joint biomechanics early after anterior cruciate ligament injury and reconstruction differ between patients with and without post-traumatic knee osteoarthritis 5years after reconstruction...
December 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28952012/comparison-of-a-fast-5-min-knee-mri-protocol-with-a-standard-knee-mri-protocol-a-multi-institutional-multi-reader-study
#13
Erin FitzGerald Alaia, Alex Benedick, Nancy A Obuchowski, Joshua M Polster, Luis S Beltran, Jean Schils, Elisabeth Garwood, Christopher J Burke, I-Yuan Joseph Chang, Soterios Gyftopoulos, Naveen Subhas
PURPOSE: To compare diagnostic performance of a 5-min knee MRI protocol to that of a standard knee MRI. MATERIALS AND METHODS: One hundred 3 T (100 patients, mean 38.8 years) and 50 1.5 T (46 patients, mean 46.4 years) MRIs, consisting of 5 fast, 2D multi-planar fast-spin-echo (FSE) sequences and five standard multiplanar FSE sequences, from two academic centers (1/2015-1/2016), were retrospectively reviewed by four musculoskeletal radiologists. Agreement between fast and standard (interprotocol agreement) and between standard (intraprotocol agreement) readings for meniscal, ligamentous, chondral, and bone pathology was compared for interchangeability...
September 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28945482/clinical-outcomes-of-meniscal-allograft-transplantation-with-or-without-other-procedures-a-systematic-review-and-meta-analysis
#14
Bum-Sik Lee, Hyun-Jung Kim, Chang-Rack Lee, Seong-Il Bin, Dae-Hee Lee, Na-Jin Kim, Chang-Wan Kim
BACKGROUND: While additional procedures correcting accompanying pathological conditions can improve the clinical outcomes of meniscal allograft transplantation (MAT), whether those outcomes are comparable or poorer than those of isolated MAT has yet to be clarified. PURPOSE:  To evaluate whether there is a difference in clinical outcomes between isolated MAT and MAT combined with other procedures (combined MAT). STUDY DESIGN: Meta-analysis and systematic review...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28938385/preoperative-evaluation-and-optimization-for-reconstruction-of-segmental-bone-defects-of-the-tibia
#15
Philip K McClure, Hamza M Alrabai, Janet D Conway
Reconstruction of segmental bone defects requires a large commitment both on the part of the patient and the physician. Investing in preoperative evaluation and optimization is the only logical way to pursue such an endeavor. Unfortunately, detailed studies regarding segmental bone defects and preoperative factors are relatively lacking owing to the relatively low incidence of the problem. Fortunately, other orthopaedic pathologies (arthritis, ligamentous injuries about the knee) have high prevalence and consistency, allowing detailed analysis of preoperative factors...
October 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28933331/-comparison-of-the-arthroscopic-finding-in-the-knee-joint-and-the-mri-retrospective-study
#16
K Šimeček, P Látal, J Duda, M Šimeček
PURPOSE OF THE STUDY Our retrospective study presents the comparison of the preoperative magnetic resonance imaging of the knee joint - MRI - and the arthroscopic finding - ASC. Its aim is to find out how a positive or a negative finding of MRI corresponds with the operative finding and how much the experience of radiologist contributes to the conformity. MATERIAL AND METHODS The MRI findings of knee joints treated surgically at two departments in 2013 and 2014 were assessed. The MRI was performed in a total of 470 patients who subsequently underwent an arthroscopic surgery...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28918500/current-evidence-advocates-use-of-a-new-pathologic-tibial-tubercle-posterior-cruciate-ligament-distance-threshold-in-patients-with-patellar-instability
#17
REVIEW
Nickolas Boutris, Domenica A Delgado, John S Labis, Patrick C McCulloch, David M Lintner, Joshua D Harris
PURPOSE: To determine (1) whether a correlation exists between tibial tubercle-posterior cruciate ligament (TT-PCL) and tibial tubercle-trochlear groove (TT-TG) distances in patellar instability patients; (2) reliability when measuring TT-PCL distance; (3) whether TT-PCL distances measured on MRI are equivalent to those on CT; and (4) whether a correlation exists between TT-PCL distance and number of instability events or recurrence of instability following stabilization surgery. METHODS: A systematic review was performed using PRISMA guidelines...
September 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28914334/the-clinical-and-radiological-results-of-individualized-surgical-treatment-depending-on-pathologic-abnormalities-in-recurrent-patellar-dislocation-low-recurrence-rate-but-unintended-patella-baja
#18
Do Kyung Lee, Joon Ho Wang, Seung Hoon Kang, Jun Ho Kim, Russel Haque, Byung Hoon Lee
PURPOSE: To evaluate the clinical and radiological outcomes and chondral lesion change using individualized surgery for recurrent patellar dislocation. METHODS: A total of 31 knees with recurrent patellar dislocation underwent surgery depending on individual pathologic abnormalities. Pathologic abnormalities including medial laxity, lateral tightness, increased tibial tuberosity (TT)-to-trochlear groove distance (>20 mm), and patella alta (Caton-Deschamps ratio >1...
September 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28893426/outcomes-after-double-bundle-anterior-cruciate-ligament-reconstruction
#19
Ji Hyun Ahn, Ho Won Kang, Kug Jin Choi
PURPOSE: To identify the risk factors predicting unsatisfactory postoperative clinical outcomes after double-bundle (DB) anterior cruciate ligament (ACL) reconstruction using multivariate logistic regression. METHODS: Inclusion criteria were consecutive DB ACL reconstructions from January 2006 to September 2012 with a minimum 3-year follow-up. Exclusion criteria included (1) a delay to surgery from initial injury of more than 4 years (210 weeks); (2) contralateral knee pathology; (3) the lack of postoperative 3-dimensional computed tomography; (4) single-bundle ACL reconstruction; (5) revision ACL reconstruction; (6) meniscus allograft transplantation after total or subtotal meniscectomy; (7) multiple ligament surgeries...
September 8, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28890904/thirty-year-experience-with-acl-reconstruction-using-patellar-tendon-a-critical-evaluation-of-revision-and-reoperation
#20
Andrew J Riff, Timothy J Luchetti, Alexander E Weber, Jaskarndip Chahal, Bernard R Bach
BACKGROUND: During the preoperative discussion prior to anterior cruciate ligament reconstruction (ACLR), patients are often interested in data regarding rates of revision reconstruction, reoperation, concomitant pathologic changes, and future contralateral ACL injury. PURPOSE: To analyze a single surgeon's experience with primary and revision ACLR over a 30-year interval, focusing on incidence and risk factors for revision and reoperation. STUDY DESIGN: Case series; Level of evidence, 4...
August 2017: Orthopaedic Journal of Sports Medicine
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