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Knee arthroscopy

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https://www.readbyqxmd.com/read/29662913/high-rate-of-missed-lateral-meniscus-posterior-root-tears-on-preoperative-magnetic-resonance-imaging
#1
Aaron J Krych, Isabella T Wu, Vishal S Desai, Naveen S Murthy, Mark S Collins, Daniel B F Saris, Bruce A Levy, Michael J Stuart
Background: Lateral meniscus posterior root tears (LMPRTs), if left untreated, can cause devastating effects to the knee, with rapid articular cartilage degeneration and loss of the meniscus as a secondary stabilizer. Detection and surgical repair of these defects have been linked to favorable outcomes, but preoperative identification of LMPRTs continues to be challenging. Purpose: To determine the rate of LMPRTs diagnosed preoperatively on magnetic resonance imaging (MRI) in a consecutive series of arthroscopically confirmed LMPRTs...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29644038/calcific-tendonitis-of-the-quadriceps-tendon
#2
S A Webb, M A Hopper, J Chitnavis
A 61-year-old woman presented with chronic anterior pain and stiffness in the distal left thigh. Examination revealed swelling and tenderness immediately proximal to the patella. Radiographs showed opacities in the distal anterior thigh whilst MRI identified enlargement of the distal quadriceps tendon with splayed fibres separated by solid conglomerates. Dystrophic calcification of the quadriceps tendon was diagnosed. Blood tests revealed no systemic abnormalities in calcium handling. Arthroscopy of the left knee identified calcific deposits in the supra-patella pouch with surrounding synovitis...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29629804/quantitative-assessment-of-degenerative-cartilage-and-subchondral-bony-lesions-in-a-preserved-cadaveric-knee-propagation-based-phase-contrast-ct-versus-conventional-mri-and-ct
#3
Tobias Geith, Emmanuel Brun, Alberto Mittone, Sergei Gasilov, Loriane Weber, Silvia Adam-Neumair, Alberto Bravin, Maximilian Reiser, Paola Coan, Annie Horng
OBJECTIVE: The aim of this study was to quantitatively assess hyaline cartilage and subchondral bone conditions in a fully preserved cadaveric human knee joint using high-resolution x-ray propagation-based phase-contrast imaging (PBI) CT and to compare the performance of the new technique with conventional CT and MRI. MATERIALS AND METHODS: A cadaveric human knee was examined using an x-ray beam of 60 keV, a detector with a 90-mm2 FOV, and a pixel size of 46 × 46 μm2 ...
April 9, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29626617/dynamic-sonographic-visualization-of-an-occult-posterior-lateral-meniscocapsular-separation-a-case-report
#4
Allison Schroeder, Volker Musahl, Christopher Urbanek, Kentaro Onishi
Meniscocapsular separation describes detachment of the meniscus from the knee joint capsule. Diagnosis is challenging with conventional examination and imaging methods. We report a case of an 18-year-old female softball catcher with unrevealing MRI despite continued left knee locking and discomfort with deep squatting. Meniscocapsular separation was revealed only on dynamic sonographic exam, where knee flexion revealed a 3.1 mm gap that developed between the capsule and peripheral meniscus. Arthroscopy confirmed the sonographic findings, and repair resulted in complete resolution of symptoms...
April 4, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29613930/operative-experience-during-orthopaedic-residency-compared-with-early-practice-in-the-u-s
#5
Jessica M Kohring, Michael O Bishop, Angela P Presson, John J Harrast, J Lawrence Marsh, Theodore W Parsons, Charles L Saltzman
BACKGROUND: The goal of surgical education is to prepare the trainee for independent practice; however, the relevance of the current residency experience to practice remains uncertain. The purpose of this study was to identify the surgical procedures most frequently performed in orthopaedic residency and in early surgical practice and to identify surgical procedures performed more often or less often in orthopaedic residency compared with early surgical practice. METHODS: This retrospective cohort study included American Medical Association (AMA) Current Procedural Terminology (CPT) codes (n = 4,329,561 procedures) reported by all U...
April 4, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29601214/a-novel-clinical-test-for-assessing-patellar-cartilage-changes-and-its-correlation-with-magnetic-resonance-imaging-and-arthroscopy
#6
Paul Khoo, Abhijeet Ghoshal, Damien Byrne, Ramesh Subramaniam, Raymond Moran
Controversy still exists regarding the best clinical assessment test for chondromalacia patellae (CMP). Our study aims to evaluate the specificity and sensitivity of a novel clinical test for CMP, the "Patella Slide Test" (PST) against the findings of magnetic resonance imaging (MRI) and arthroscopy. We included 221 consecutive patients planned for elective knee arthroscopic surgery. An MRI scan of the symptomatic knee was performed prior to surgery. On the day of surgery, each patient was examined using the PST followed by a knee arthroscopy to assess the quality of the chondral surfaces of the patellofemoral joint...
March 30, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29600679/-diagnostic-value-of-mri-for-posterior-root-tear-of-medial-and-lateral-meniscus
#7
Yue-Nan Qian, Fang Liu, Yi-Long Dong, Chun-Yuan Cai
OBJECTIVE: To explore diagnostic value of MRI on posterior root tear of medial and lateral meniscus. METHODS: From January 2012 to January 2016, clinical data of 43 patients with meniscal posterior root tear confirmed by arthroscopy were retrospective analyzed, including 25 males and 18 females, aged from 27 to 69 years old with an average age of(42.5±8.3)years old;27 cases on the right side and 16 cases on the left side. MRI examinations of 43 patients with tear of posterior meniscus root confirmed by knee arthroscopies were retrospectively reviewed...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29600217/double-posterior-cruciate-ligament-sign-on-magnetic-resonance-imaging-imaging-variants-mimics-and-clinical-implications
#8
Raju Vaishya, Vipul Vijay, Abhishek Vaish, Amit K Agarwal, Nitin P Ghonge
Introduction: Double posterior cruciate ligament (PCL) sign is a sign on magnetic resonance imaging (MRI) which is suggestive of a bucket- handle tear (BHT) of the meniscus. We undertook this study to assess the presence of a double PCL sign and its correlation with arthroscopic findings. We also discussed the various mimics and variants of the double PCL sign. Case Report: All the patients with a double PCL sign on the MRI and who underwent knee arthroscopy between January 2012 and December 2016 (total of 5 cases, 4 males and one female) were included in the study...
November 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29594177/2018-international-olympic-committee-consensus-statement-on-prevention-diagnosis-and-management-of-pediatric-anterior-cruciate-ligament-injuries
#9
Clare L Ardern, Guri Ekås, Hege Grindem, Håvard Moksnes, Allen F Anderson, Franck Chotel, Moises Cohen, Magnus Forssblad, Theodore J Ganley, Julian A Feller, Jón Karlsson, Mininder S Kocher, Robert F LaPrade, Mike McNamee, Bert Mandelbaum, Lyle Micheli, Nicholas G H Mohtadi, Bruce Reider, Justin P Roe, Romain Seil, Rainer Siebold, Holly J Silvers-Granelli, Torbjørn Soligard, Erik Witvrouw, Lars Engebretsen
In October 2017, the International Olympic Committee hosted an international expert group of physical therapists and orthopaedic surgeons who specialize in treating and researching pediatric anterior cruciate ligament (ACL) injuries. The purpose of this meeting was to provide a comprehensive, evidence-informed summary to support the clinician and help children with ACL injury and their parents/guardians make the best possible decisions. Representatives from the following societies attended: American Orthopaedic Society for Sports Medicine; European Paediatric Orthopaedic Society; European Society for Sports Traumatology, Knee Surgery, and Arthroscopy; International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine; Pediatric Orthopaedic Society of North America; and Sociedad Latinoamericana de Artroscopia, Rodilla, y Deporte...
March 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29589491/risk-factors-for-progression-of-articular-cartilage-damage-after-anatomical-anterior-cruciate-ligament-reconstruction
#10
A Nakamae, N Adachi, M Deie, M Ishikawa, T Nakasa, Y Ikuta, M Ochi
Aims To investigate the risk factors for progression of articular cartilage damage after anatomical anterior cruciate ligament (ACL) reconstruction. Patients and Methods A total of 174 patients who underwent second-look arthroscopic evaluation after anatomical ACL reconstruction were enrolled in this study. The graded condition of the articular cartilage at the time of ACL reconstruction was compared with that at second-look arthroscopy. Age, gender, body mass index (BMI), ACL reconstruction technique, meniscal conditions, and other variables were assessed by regression analysis as risk factors for progression of damage to the articular cartilage...
March 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29588914/association-of-acl-laxity-tests-with-arthroscopic-findings-in-chronic-acl-and-pcl-deficient-knees
#11
S Sazali, A Rusdi, H T Siti
An anterior cruciate ligament (ACL) injury may be diagnosed by clinical examination and radiological investigation using magnetic resonance imaging or by arthroscopy.1,2 Based on our experience, the ACL tear in concomitant chronic ACL and posterior cruciate ligament (PCL) deficient knees may produce knee laxity, which is more difficult to assess on clinical examination, which in turn may affect the management algorithm of the patient. Our hypothesis is that, in a concomitant chronic ACL and PCL injury, posterior capsular contracture and abnormal reattachment of torn ACL will result in less clinical and subjective laxity, preoperatively...
January 2018: Surgery Journal
https://www.readbyqxmd.com/read/29580593/multimodal-perioperative-analgesia-regimen-to-improve-patient-outcomes-after-total-knee-arthroplasty-a-multidisciplinary-quality-improvement-project
#12
Rebecca E Donahue, George R Bradbury, Michael E Zychowicz, Virginia C Muckler
PURPOSE: The primary aim of this quality improvement project was to improve mobilization for patients after total knee arthroscopy by developing and implementing a standardized, evidence-based, multimodal analgesia regimen and patient-educational video. Secondary outcomes included opioid consumption, pain, and length of stay. DESIGN: A pre-post implementation design was used to compare two independent samples. METHODS: Patients were screened based on inclusion and exclusion criteria 1-2 weeks before surgery...
April 2018: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/29567561/medical-image-analysis-of-knee-joint-lipoma-arborescens-and-arthroscopic-treatment
#13
Guangyu Zhu, Xiangdong Tian, Dongfeng Du, Ming Lei, Lei Guan, Jian Wang, Yetong Tan, Chen Yang, Xinxin Zheng
OBJECTIVE: Arthroscopy is a minimally invasive surgical procedure on a joint in which examination and treatment of knee damage is performed using a surgical device known as the arthroscope. Lipoma arborescens (LA), an infrequent intra-articular lesion, originates from mature adipose cells under subsynovial tissue. The synovial membrane is pale yellow with large villous projections. It is caused by various underlying factors. We found many patients with LA and processed them appropriately...
January 12, 2018: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/29552485/graft-retensioning-technique-using-an-adjustable-loop-fixation-device-in-arthroscopic-anterior-cruciate-ligament-reconstruction
#14
Joseph T Gamboa, Edward C Shin, Neil P Pathare, Patrick J McGahan, James L Chen
Anterior cruciate ligament (ACL) tears are an unfortunate and devastating injury in the athletic patient. Surgical reconstruction of the ACL with a taut graft construct is necessary to restore knee stability and help expedite the patient's return to an active lifestyle. Arthroscopy-assisted ACL reconstruction can be a technically involved procedure, where strong fixation limits graft motion to allow sufficient healing within the tibial and femoral tunnels at the bone-tendon interfaces. Loss of tension in a graft can cause symptomatic anterior or rotatory instability and potential retear of the ACL graft...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29552470/cartilage-repair-in-the-knee-using-umbilical-cord-wharton-s-jelly-derived-mesenchymal-stem-cells-embedded-onto-collagen-scaffolding-and-implanted-under-dry-arthroscopy
#15
Boguslaw Sadlik, Grzegorz Jaroslawski, Mariusz Puszkarz, Adrian Blasiak, Tomasz Oldak, Dominika Gladysz, Graeme P Whyte
Cell-based cartilage repair procedures are becoming more widely available and have shown promising potential to treat a wide range of cartilage lesion types and sizes, particularly in the knee joint. More recently, techniques have evolved from 2-step techniques that use autologous chondrocyte expansion to 1-step techniques that make use of mesenchymal stem cells (MSCs) embedded onto biocompatible scaffolding. Our 1-step technique has been further developed to provide cell-based cartilage repair using MSCs that have the potential to be used in an off-the-shelf manner, without the need for autologous tissue harvest...
January 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29549559/no-effectiveness-of-anticoagulants-for-thromboprophylaxis-after-non-major-knee-arthroscopy-a-systemic-review-and-meta-analysis-of-randomized-controlled-trials
#16
REVIEW
Gang Zheng, Qian Tang, Ping Shang, Xiao-Yun Pan, Hai-Xiao Liu
Arthroscopic knee surgery is the most commonly performed orthopedic procedure worldwide and whether thromboprophylaxis should be undertaken after knee arthroscopy is still controversial. To evaluate the efficacy of thromboprophylaxis for deep venous thrombosis (DVT) and venous thromboembolism (VTE) after knee arthroscopic surgery. A meta-analysis was conducted using data from eight randomized trials (4148 patients) to compare thromboprophylaxis with placebo or no prophylactic treatment in patients undergoing knee arthroscopy...
March 16, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29549388/the-safety-and-efficacy-of-magnetic-targeting-using-autologous-mesenchymal-stem-cells-for-cartilage-repair
#17
Naosuke Kamei, Mitsuo Ochi, Nobuo Adachi, Masakazu Ishikawa, Shinobu Yanada, L Scott Levin, Goki Kamei, Takaaki Kobayashi
PURPOSE: A new cell delivery system using magnetic force, termed magnetic targeting, was developed for the accumulation of locally injected cells in a lesion. The aim of this study was to assess the safety and efficacy of mesenchymal stem cell (MSC) magnetic targeting in patients with a focal articular cartilage defect in the knee. METHODS: MSC magnetic targeting for five patients was approved by the Ministry of Health Labour and Welfare of Japan. Autologous bone marrow MSCs were cultured and subsequently magnetized with ferucarbotran...
March 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29536694/-treatment-of-schatzker-iv-tibial-plateau-fractures-with-arthroscopy-combined-with-mippo-technique
#18
Jian-Wen Li, Feng Ye, Da-Wei Bi, Xiao-Dong Zheng, Jian-Liang Chen
OBJECTIVE: To discusses the clinical effects of arthroscopy combined with minimally invasive percutaneous plate osteosynthesis(MIPPO) technology in treating Schatzker IV tibial plateau fractures. METHODS: From January 2012 to January 2016, 19 patients with Schatzker type IV tibial plateau fractures were treated with arthroscopy combined with minimally invasive technique including 12 males and 7 females with an average age of 46.5 years old ranging from 19 to 78 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29536687/-analysis-of-the-characteristics-and-clinical-diagnosis-and-treatment-of-avulsion-fracture-of-the-lateral-edge-of-tibial-plateau
#19
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29534270/intra-articular-alpha-2-agonists-as-an-adjunct-to-local-anesthetic-in-knee-arthroscopy-a-systematic-review-and-meta-analysis
#20
Thomas James Ryan, Rhys Holyoak, Ruan Vlok, Thomas Melhuish, Anthony Hodge, Matthew Binks, Glenn Hurtado, Leigh White
The infiltration of local anesthetic has been shown to reduce postoperative pain in knee arthroscopy. Several studies have shown that the addition of agents such as magnesium and nonsteroidal antiinflammatory drugs (NSAIDs) result in an increased time to first analgesia and overall reduction in pain. The aim of this systematic review and meta-analysis was to determine whether the addition of an α-2 agonist (A2A) to intra-articular local anesthetic, results in a reduction in postoperative pain. Four major databases were systematically searched for relevant randomized controlled trials (RCTs) up to July 2017...
March 13, 2018: Journal of Knee Surgery
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