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https://www.readbyqxmd.com/read/28822094/quantitative-knee-cartilage-measurement-at-mr-imaging-of-patients-with-anterior-cruciate-ligament-tear
#1
Kazuki Kato, Tamotsu Kamishima, Eiji Kondo, Tomohiro Onodera, Shota Ichikawa
In previous studies, numerous approaches were proposed that assess knee cartilage volume quantitatively using 3D magnetic resonance (MR) imaging. However, the clinical use of these approaches is limited because 3D MR is prone to metal artifacts in postoperative cases. Our purpose in this study was to validate a method for knee cartilage volume quantification using conventional MR imaging in patients who underwent anterior cruciate ligament (ACL) reconstruction surgery. The study included 16 patients who underwent MR imaging before and 1 year after ACL reconstruction surgery...
August 18, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28821971/multiscale-mechanics-of-the-cervical-facet-capsular-ligament-with-particular-emphasis-on-anomalous-fiber-realignment-prior-to-tissue-failure
#2
Sijia Zhang, Vahhab Zarei, Beth A Winkelstein, Victor H Barocas
The facet capsular ligaments encapsulate the bilateral spinal facet joints and are common sources of painful injury due to afferent innervation. These ligaments exhibit architectural complexity, which is suspected to contribute to the experimentally observed lack of co-localization between macroscopic strain and microstructural tissue damage. The heterogeneous and multiscale nature of this ligament, combined with challenges in experimentally measuring its microscale mechanics, hinders the ability to understand sensory mechanisms under normal or injurious loading...
August 18, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28821912/the-remnant-preservation-technique-reduces-the-amount-of-bone-tunnel-enlargement-following-anterior-cruciate-ligament-reconstruction
#3
Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Tomoyuki Nakagawa, Hiroyuki Shiozawa, Takashi Ohsawa, Hirotaka Chikuda
PURPOSE: The aim of the present study was to investigate the correlation between postoperative tunnel enlargement after ACLR and remnant tissue preservation using the hamstring tendon. METHODS: One hundred and ninety-two subjects (male, n = 101; female, n = 91; mean age 27.1) who had undergone double-bundle ACL reconstruction were included in the present study. The patients were divided into two groups: the remnant tissue preservation group (Group R) and the non-remnant tissue preservation group (Group N)...
August 18, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#4
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
August 18, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28820323/non-surgical-model-for-alveolar-bone-regeneration-by-bone-morphogenetic-protein-2-7-gene-therapy
#5
Mariko Kawai, Yo-Hei Kataoka, Junya Sonobe, Hiromitsu Yamamoto, Masakazu Inubushi, Takuya Ishimoto, Takayoshi Nakano, Hiroki Maruyama, Jun-Ichi Miyazaki, Toshio Yamamoto, Kazuhisa Bessho, Kiyoshi Ohura
BACKGROUND: Alveolar bone is a critical tissue for tooth retention; however, once alveolar bone is lost, it may not spontaneously regenerate. Currently, bone grafts or artificial bone are commonly used for alveolar bone regeneration therapy. However, these therapies require surgical procedures, which present risks, particularly in aged patients. Therefore, the development of alveolar bone regeneration techniques that do not require surgical procedures is critical. It is well known that stem cells present in the periosteal and periodontal ligament may be induced to differentiate into osteogenic cells...
August 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28819679/neuromuscular-electrical-stimulation-is-effective-in-strengthening-the-quadriceps-muscle-after-anterior-cruciate-ligament-surgery
#6
REVIEW
Annette V Hauger, M P Reiman, J M Bjordal, C Sheets, L Ledbetter, A P Goode
PURPOSE: Reduced ability to contract the quadriceps muscles is often found immediately following anterior cruciate ligament (ACL) surgery. This can lead to muscle atrophy and decreased function. Application of neuromuscular electrical stimulation (NMES) may be a useful adjunct intervention to ameliorate these deficits following ACL surgery. The purpose of this review was to determine whether NMES in addition to standard physical therapy is superior to standard physical therapy alone in improving quadriceps strength or physical function following ACL surgery...
August 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28819604/posterior-knee-loose-bodies-treated-by-posterior-knee-arthroscopy
#7
Ho Lam Chai, Tun Hing Lui
INTRODUCTION: The posterior portion of the knee joint, which includes the tibial attachment of the posterior cruciate ligament and the posterior horn of the menisci, has been called a "blind spot" because it is difficult to observe this area under arthroscopy through standard anterior portals. Posteromedial, posterolateral, and posterior transseptal portals have been developed for visualization and instrumentation of the posteromedial and posterolateral compartments of the knee joint...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28819597/case-report-oblique-fracture-of-the-ulnar-sesamoid-bone-of-the-metacarpophalangeal-joint-a-rare-pathology
#8
Dauwe Jan, Van der Cruyssen Fréderic, De Smet Luc
INTRODUCTION: Fractures of the sesamoid bones of the metacarpophalangeal joint (MCPJ) are a rare pathology in hand trauma. Only a few case reports and case series were found in literature. The diagnosis of an ulnar sesamoid bone fracture of the MCPJ is difficult and can pose a differential diagnostic problem with Stener lesions or ulnar collateral ligament (UCL) instability. This pathology is frequently missed with subsequent poor functional outcomes. Correct and early diagnosis is important as this will allow for correct treatment with full recovery of function without sequelae...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28819516/a-severed-ip-ligament-as-a-cause-for-trans-vaginal-uterine-bleeding-post-termination-of-pregnancy-a-case-report
#9
Madeeha Dean, Nicole Stamatopoulos, Thierry Vancaillie
Uterine perforation is an uncommon yet serious complication of surgical management of first and second trimester termination of pregnancies. The rate of uterine perforation is under reported, as patients are usually asymptomatic. Although uncommon, uterine perforation can cause life-threatening complications for some patients. This case report discusses a second trimester surgical termination resulting in uterine perforation and haemorrhage secondary to an avulsion of the infundibulopelvic ligament and prolapse of the left fallopian tube and ovary into the uterine cavity...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28818360/clinical-and-arthroscopic-outcome-of-single-bundle-anterior-cruciate-ligament-reconstruction-comparison-of-remnant-preservation-versus-conventional-technique
#10
Sungwook Choi, Myung-Ku Kim, Yong Suk Kwon, Hyunseong Kang
BACKGROUND: The purpose of this study was to compare the clinical outcomes and second-look arthroscopic findings of remnant preservation technique with those of conventional anterior cruciate ligament (ACL) reconstruction in single bundle ACL reconstructions. METHODS: One hundred sixty two consecutive patients underwent ACL reconstruction by one surgeon, with 93 patients receiving remnant preservation technique (Group A) and 69 patients receiving conventional ACL reconstruction (Group B)...
August 14, 2017: Knee
https://www.readbyqxmd.com/read/28818107/patellofemoral-kinematics-in-dogs-with-cranial-cruciate-ligament-insufficiency-an-in-vivo-fluoroscopic-analysis-during-walking
#11
Stanley E Kim, Geoffrey J Zann, Selena Tinga, Erica J Moore, Antonio Pozzi, Scott A Banks
BACKGROUND: Complete rupture of the cranial cruciate ligament (CrCL) in dogs causes profound disturbance to stifle joint biomechanics. The objective of this study was to characterize the effects of cranial cruciate ligament (CrCL) insufficiency on patellofemoral (PF) kinematics in dogs during walking. Ten client-owned dogs (20-40 kg) with natural unilateral complete CrCL rupture were included. Dogs underwent computed tomographic scans to create digital bone-models of the patella and femur...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28818088/assessment-of-the-effect-of-left-atrial-cryoablation-enhanced-by-ganglionated-plexi-ablation-in-the-treatment-of-atrial-fibrillation-in-patients-undergoing-open-heart-surgery
#12
Jiří Bárta, Radim Brát
BACKGROUND: The aim of our study was to investigate, whether enhancement of left atrial cryoablation by ablation of the autonomic nervous system of left atrium leads to influencing the outcomes of surgical treatment of atrial fibrillation in patients with structural heart disease undergoing open-heart surgery. METHODS: The observed patient file consisted of 100 patients, who have undergone a combined open-heart surgery at our department between July 2012 and December 2014...
August 17, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28817645/translation-cultural-adaptation-and-validation-of-simplified-chinese-version-of-the-anterior-cruciate-ligament-return-to-sport-after-injury-acl-rsi-scale
#13
Tianwu Chen, Peng Zhang, Yunxia Li, Kate Webster, Jian Zhang, Wei Yao, Yue Yin, Chingchong Ai, Shiyi Chen
PURPOSE: To translate and cross-culturally adapt the anterior cruciate ligament-return to sport after injury (ACL-RSI) into simplified Chinese [ACL-RSI (Cn)]. METHOD: In this diagnostic study, the translation, cross-culturally adaptation, and validation of the ACL-RSI was performed according to international guidelines. A total of 112 patients with ACL reconstruction participated in this study. All were capable of competitive sports before the injury and completed the Knee Injury and Osteoarthritis Outcome (KOOS), the International Knee Documentation Committee (IKDC), the Tampa Scale of Kinesiophobia (TSK), and the Tegner activity score...
2017: PloS One
https://www.readbyqxmd.com/read/28817414/systematic-selection-of-key-logistic-regression-variables-for-risk-prediction-analyses-a-five-factor-maximum-model
#14
Timothy E Hewett, Kate E Webster, Wendy J Hurd
GENERAL AND CRITICAL REVIEW FORMAT: The evolution of clinical practice and medical technology has yielded an increasing number of clinical measures and tests to assess a patient's progression and return to sport readiness after injury. The plethora of available tests may be burdensome to clinicians in the absence of evidence that demonstrates the utility of a given measurement. OBJECTIVE: Thus, there is a critical need to identify a discrete number of metrics to capture during clinical assessment to effectively and concisely guide patient care...
August 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28817244/key-developments-that-impacted-the-field-of-mechanobiology-and-mechanotransduction
#15
Michelle Wall, David Butler, Alicia El Haj, Josephine C Bodle, Elizabeth G Loboa, Albert J Banes
Advances in mechanobiology have evolved through insights from multiple disciplines including structural engineering, biomechanics, vascular biology, and orthopaedics. In this paper, we reviewed the impact of key reports related to the study of applied loads on tissues and cells and the resulting signal transduction pathways. We addressed how technology has helped advance the burgeoning field of mechanobiology (over 33,600 publications from 1970-2016). We analyzed the impact of critical ideas and then determined how these concepts influenced the mechanobiology field by looking at the citation frequency of these reports as well as tracking how the overall number of citations within the field changed over time...
August 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28816943/spinal-cord-compression-syndrome-caused-by-intraspinal-epidural-fibrous-cord-three-case-reports
#16
Yingjie Zhou, Xubin Chai, Huailiang Zheng, Renqian Song, Xiaofei Qin
RATIONALE: The spinal cord compression caused by intraspinal epidural fibrous cord. PATIENT CONCERNS: All patients in this study had spinal cord compression syndrome caused by an intraspinal epidural fibrous cord, manifested as abnormally increased epidural adipose tissue by imaging. DIAGNOSE: These abnormal fibrous connective tissue strips were not identical to the known pathological tissue such as "meningovertebral ligament." Instead, it might be a novel pathogenic cause for the spinal cord compression...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816942/surgical-interventions-for-cervical-spondylosis-due-to-ossification-of-posterior-longitudinal-ligament-a-meta-analysis
#17
Di Wu, Cheng-Zhao Liu, Hao Yang, Hua Li, Nan Chen
BACKGROUND: Aim of this study was to evaluate the effectiveness of various surgical interventions for the management of cervical spondylosis due to the ossification of posterior longitudinal ligament (OPLL). METHODS: After a comprehensive literature search in electronic databases, studies were selected by following pre-determined eligibility criteria. Random effects meta-analyses were performed to estimate the effect sizes of various surgical approaches in improving Japanese Orthopedic Association (JOA) scores at latest follow-up and meta-regression analyses were carried out to examine the factors affecting the change in JOA score...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816907/a-little-bit-of-immobilization-goes-a-long-way-commentary-on-an-article-by-christopher-l-camp-md-et-al-timing-of-postoperative-mechanical-loading-affects-healing-following-anterior-cruciate-ligament-reconstruction-analysis-in-a-murine-model
#18
https://www.readbyqxmd.com/read/28816898/timing-of-postoperative-mechanical-loading-affects-healing-following-anterior-cruciate-ligament-reconstruction-analysis-in-a-murine-model
#19
Christopher L Camp, Amir Lebaschi, Guang-Ting Cong, Zoe Album, Camila Carballo, Xiang-Hua Deng, Scott A Rodeo
BACKGROUND: Following anterior cruciate ligament (ACL) reconstruction, the mechanical loading of the tissues has a significant impact on tendon-to-bone healing. The purpose of this study was to determine the effect of the timing of the initiation of mechanical loading on healing of a tendon graft in a bone tunnel. METHODS: ACL reconstruction using a flexor tendon autograft was performed in 56 mice randomized to 4 groups with differing times to initiation of postoperative mechanical loading: (1) immediate, (2) 5 days, (3) 10 days, or (4) 21 days following surgery...
August 16, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28816879/atlas-fractures-and-atlas-osteosynthesis-a-comprehensive-narrative-review
#20
Frank Kandziora, Jens R Chapman, Alexander R Vaccaro, Gregory D Schroeder, Matti Scholz
Most atlas fractures are the result of compression forces. They are often combined with fractures of the axis and especially with the odontoid process. Multiple classification systems for atlas fractures have been described. For an adequate diagnosis, a computed tomography is mandatory. To distinguish between stable and unstable atlas injury, it is necessary to evaluate the integrity of the transverse atlantal ligament (TAL) by magnetic resonance imaging and to classify the TAL lesion. Studies comparing conservative and operative management of unstable atlas fractures are unfortunately not available in the literature; neither are studies comparing different operative treatment strategies...
September 2017: Journal of Orthopaedic Trauma
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