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https://www.readbyqxmd.com/read/28812041/anthropometric-and-skeletal-parameters-predict-2-strand-semitendinosus-tendon-size-in-double-bundle-anterior-cruciate-ligament-reconstruction
#1
Daisuke Chiba, Eiichi Tsuda, Shizuka Sasaki, Xizhe Liu, Yasuyuki Ishibashi
BACKGROUND: Few studies have examined whether skeletal parameters predict hamstring graft size during anterior cruciate ligament reconstruction (ACLR). PURPOSE/HYPOTHESIS: The purpose of this study was to examine whether preoperative anthropometric and radiographic skeletal parameters could predict hamstring graft size during ACLR. We hypothesized that both anthropometric and skeletal parameters can be used to predict graft size in our double-bundle procedure and that the use of skeletal parameters will improve the accuracy of graft size prediction...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28812035/bioabsorbable-versus-metal-screw-in-the-fixation-of-tibial-tubercle-transfer-a-cadaveric-biomechanical-study
#2
Janne T Nurmi, Ari Itälä, Raine Sihvonen, Petri Sillanpää, Pekka Kannus, Harri Sievänen, Teppo L N Järvinen
BACKGROUND: In tibial tubercle transfer (TTT) procedures, the osteotomized and transferred tibial tubercle is usually fixed into the host bone using metal screws. PURPOSE: To compare the strength of fixation provided by a single bioabsorbable screw versus a metal screw for TTT. STUDY DESIGN: Controlled laboratory study. METHODS: Twenty-two pairs of human cadaveric tibiae were used to compare the fixation strength of a single 4...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28808736/the-role-of-isolated-posterior-cruciate-ligament-reconstruction-in-knees-with-combined-posterior-cruciate-ligament-and-posterolateral-complex-injury
#3
REVIEW
Dong-Yeong Lee, Young-Jin Park, Dong-Hee Kim, Hyun-Jung Kim, Dae-Cheol Nam, Jin-Sung Park, Sun-Chul Hwang
PURPOSE: This is a meta-analysis comparing biomechanical outcomes to determine whether an isolated posterior cruciate ligament (PCL) reconstruction can restore normal knee kinematics in a combined PCL/posterolateral complex (PLC) injury and whether double-bundle (DB) PCL reconstruction is superior in controlling posterior and rotational laxity compared with single-bundle (SB) PCL reconstruction in a PCL/PLC-deficient knee. METHODS: A number of electronic databases were searched for relevant articles published through August 2016 that compared biomechanical outcomes of PCL reconstruction in patients who underwent reconstruction for combined PCL/PLC deficiencies...
August 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28808629/return-to-sport-following-tibial-plateau-fractures-a-systematic-review
#4
Greg A J Robertson, Seng J Wong, Alexander M Wood
AIM: To systemically review all studies reporting return to sport following tibial plateau fracture, in order to provide information on return rates and times to sport, and to assess variations in sporting outcome for different treatment methods. METHODS: A systematic search of CINAHAL, Cochrane, EMBASE, Google Scholar, MEDLINE, PEDro, Scopus, SPORTDiscus and Web of Science was performed in January 2017 using the keywords "tibial", "plateau", "fractures", "knee", "athletes", "sports", "non-operative", "conservative", "operative", "return to sport"...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28808625/epidemiology-of-open-fractures-in-sport-one-centre-s-15-year-retrospective-study
#5
Alexander M Wood, Greg A J Robertson, Kirsty MacLeod, Anna Porter, Charles M Court-Brown
AIM: To describe the epidemiology of sport-related open fractures from one centre's adult patient population over a 15-year period. METHODS: A retrospective review of a prospectively-collected database was performed: The database contained information all sport-related open fractures, sustained from 1995 to 2009 in the Edinburgh, Mid and East Lothian Populations. RESULTS: Over the 15-year period, there were 85 fractures recorded in 84 patients...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28807955/bilateral-pathologic-mid-tibial-stress-fractures-initial-presentation-of-mild-primary-hyperparathyroidism
#6
Fahim Merali, Mark Leung
No abstract text is available yet for this article.
August 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28807526/the-effect-of-fixed-charge-density-and-cartilage-swelling-on-mechanics-of-knee-joint-cartilage-during-simulated-gait
#7
Lasse P Räsänen, Petri Tanska, Štefan Zbýň, Corrinus C van Donkelaar, Siegfried Trattnig, Miika T Nieminen, Rami K Korhonen
The effect of swelling of articular cartilage, caused by the fixed charge density (FCD) of proteoglycans, has not been demonstrated on knee joint mechanics during simulated walking before. In this study, the influence of the depth-wise variation of FCD was investigated on the internal collagen fibril strains and the mechanical response of the knee joint cartilage during gait using finite element (FE) analysis. The FCD distribution of tibial cartilage was implemented from sodium ((23)Na) MRI into a 3-D FE-model of the knee joint ("Healthy model")...
July 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28806971/factors-contributing-to-the-variability-of-a-predictive-score-for-cranial-cruciate-ligament-deficiency-in-labrador-retrievers
#8
Devin P Cunningham, Ayman A Mostafa, Wanda J Gordan-Evans, Randy J Boudrieau, Dominique J Griffon
BACKGROUND: We recently reported that a conformation score derived from the tibial plateau angle (TPA) and the femoral anteversion angle (FAA), best discriminates limbs predisposed to, or affected by cranial cruciate ligament disease (CCLD), from those that are at low risk for CCLD. The specificity and sensitivity of this score were high enough to support further investigations toward its use for large-scale screening of dogs by veterinarians. The next step, which is the objective of the current study, is to determine inter-observer variability of that CCLD score in a large population of Labrador Retrievers...
August 14, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28806840/changes-of-sagittal-and-axial-alignments-of-patella-after-open-and-closed-wedge-high-tibial-osteotomy-a-systematic-review-and-meta-analysis
#9
O-Sung Lee, Soyeon Ahn, Yong Seuk Lee
No abstract text is available yet for this article.
August 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28806709/in-vivo-kinematics-of-early-stage-osteoarthritic-knees-during-pivot-and-squat-activities
#10
Keisuke Matsuki, Kei O Matsuki, Tomonori Kenmoku, Satoshi Yamaguchi, Takahisa Sasho, Scott A Banks
Kinematic changes have been shown to accompany severe knee osteoarthritis, but no studies have analyzed early-stage osteoarthritic knee kinematics in the transverse plane during functional activities. The purpose of this study was to analyze kinematics of early-stage osteoarthritic knees using model registration techniques. Fifteen early-stage osteoarthritic knees from eight females with a mean age of 52 years old (range, 43-57years old) were involved in this study. A radiologist confirmed with plain radiographs that knees had Kellgren-Lawrence grade-1 or -2 arthritic changes...
August 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28805694/progenitor-cells-from-cartilage-grade-specific-differences-in-stem-cell-marker-expression
#11
Marija Mazor, Annabelle Cesaro, Mazen Ali, Thomas M Best, Eric Lespessaille, Hechmi Toumi
Recent research has confirmed the presence of Mesenchymal stem cell (MSC)-like progenitors (MPC) in both normal and osteoarthritic cartilage. However, there is only limited information concerning how MPC markers are expressed with osteoarthritis (OA) progression. The purpose of this study was to compare the prevalence of various MPC markers in different OA grades. Human osteoarthritic tibial plateaus were obtained from ten patients undergoing total knee replacement. Each sample had been classified into a mild or severe group according to OARSI scoring...
August 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28804716/open-wedge-high-tibial-osteotomy-with-distal-tubercle-osteotomy-lessens-change-in-patellar-position
#12
Hoon Park, Hyun Woo Kim, Jin Hwa Kam, Dong Hoon Lee
The purpose of this study was to investigate the change in patellar position after open wedge high tibial osteotomy (OWHTO) with distal tubercle osteotomy (DTO), comparing outcomes of conventional OWHTO in young adults with proximal tibia varus deformity but no arthritic manifestations. Thirty-three patients (mean age, 31.8 years) subjected to OWHTO/DTO were matched with 30 patients (mean age, 33.5 years) undergoing conventional OWHTO. Patellar position, as measured in pre- and postoperative standing lateral radiographs, was compared...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28803758/association-between-body-weight-and-proximal-tibial-bone-mineral-density-after-bilateral-total-knee-arthroplasty
#13
Yoshinori Ishii, Hideo Noguchi, Junko Sato, Hana Ishii, Koji Todoroki, Shin-Ichi Toyabe
BACKGROUND: Proximal tibial bone mineral density (BMD) has been studied for its potential impact on subsidence and loosening of the tibial component after total knee arthroplasty (TKA). However, no known studies of proximal tibial BMD after TKA have evaluated the effect of major impact factors such as body weight (BW), muscle strength, and level of activity. We aim to determine whether factors such as level of activity, quadriceps strength, BW, gender, age, and prosthetic design affect proximal tibial BMD over the mid- to long-term following TKA...
August 10, 2017: Knee
https://www.readbyqxmd.com/read/28803174/intraoperative-vascular-neuromonitoring-in-patients-with-subarachnoid-hemorrhage-a-pilot-study-using-combined-laser-doppler-spectrophotometry
#14
Emilija Schmitz, Barbara Bischoff, Dennis Wolf, Hubert Schmitt, Ilker Y Eyupoglu, Karl Roessler, Michael Buchfelder, Björn Sommer
OBJECTIVE: Intraoperative monitoring of cerebral microcirculation in patients with subarachnoid hemorrhage (SAH) may predict the postoperative neurological outcome. In this pilot study, we examined the value of a novel non-invasive real-time measurement technique to detect changes in local microcirculation. METHODS: We used the laser-Doppler spectrophotometry system "Oxygen-to-see(O2C)" in 14 patients with SAH Hunt & Hess grade 2 to 5, who underwent microsurgical clipping of cerebral aneurysms...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28803035/bone-tunnel-change-develops-within-two-weeks-of-double-bundle-anterior-cruciate-ligament-reconstruction-using-hamstring-autograft-a-comparison-of-different-postoperative-immobilization-periods-using-computed-tomography
#15
Ryo Shimizu, Nobuo Adachi, Minoru Ishifuro, Atsuo Nakamae, Masakazu Ishikawa, Masataka Deie, Mitsuo Ochi
BACKGROUND: The purpose of this study was to evaluate bone tunnel changes following anterior cruciate ligament (ACL) reconstruction during the early postoperative period using computed tomography (CT), and to understand the impact of postoperative immobilization on these changes. METHODS: Twenty patients who underwent double-bundle ACL reconstruction using hamstring tendon autografts were included. We subcategorized patients into two groups: patients who underwent isolated ACL reconstruction and had three days of knee immobilization (Group A, n=10); and patients with concomitant meniscus injuries who underwent ACL reconstruction and meniscus repair simultaneously (Group B, n=10) had their knees immobilized for two weeks after surgery...
August 9, 2017: Knee
https://www.readbyqxmd.com/read/28802725/body-mass-estimation-in-hominoids-age-and-locomotor-effects
#16
M Loring Burgess, Shannon C McFarlin, Antoine Mudakikwa, Michael R Cranfield, Christopher B Ruff
While there are a number of methods available for estimation of body mass in adult nonhuman primates, very few are available for juveniles, despite the potential utility of such estimations in both analyses of fossils and in museum collection based research. Furthermore, because of possible scaling differences, adult based body mass estimation equations may not be appropriate for non-adults. In this study, we present new body mass estimation equations for both adult and immature nonhuman hominoids based on joint and metaphyseal dimensions...
August 9, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28802422/management-of-neglected-acl-avulsion-fractures-a-case-series-and-systematic-review
#17
D K Chouhan, M S Dhillon, R John, A Khurana
INTRODUCTION: Neglected tibial eminence avulsion fractures of the anterior cruciate ligament (ACL) are uncommonly seen in modern times, but are fairly common due to a missed diagnosis/mismanagement in developing countries. OBJECTIVES: To determine the outcomes after open reduction and internal fixation of late presenting ACL avulsion fractures, and to review the literature for similar cases, in an attempt to evaluate the ideal surgical management in this unique scenario...
August 2017: Injury
https://www.readbyqxmd.com/read/28802221/in-vivo-mechanical-behaviour-of-the-anterior-cruciate-ligament-a-study-of-six-daily-and-high-impact-activities
#18
Elisa Roldán, Neil D Reeves, Glen Cooper, Kirstie Andrews
The anterior cruciate ligament (ACL) plays a key role in the stability of the knee joint restricting the rotation and anterior tibial translation. However, there is a lack of knowledge of the in vivo ACL mechanical behaviour during high impact manoeuvres. The motion of 12 young participants with healthy knees was captured while they performed the following activities: walking, running, cross-over cutting, sidestep cutting, jumping and jumping with one leg. The in vivo ACL length and strain were estimated using experimental kinematic data and three degree of freedom (DOF) knee model...
August 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28802056/different-nerve-ultrasound-patterns-in-charcot-marie-tooth-types-and-hnpp
#19
Luca Padua, Daniele Coraci, Marta Lucchetta, Ilaria Paolasso, Costanza Pazzaglia, Giuseppe Granata, Mario Cacciavillani, Marco Luigetti, Fiore Manganelli, Chiara Pisciotta, Giuseppe Piscosquito, Davide Pareyson, Chiara Briani
INTRODUCTION: Nerve ultrasound in Charcot-Marie-Tooth disease (CMT) has mostly focused on upper limbs. We performed an evaluation of a large cohort of CMT patients in which we sonographically characterized nerve abnormalities in different disease types, ages and nerves. METHODS: Seventy patients affected by different CMT types and hereditary neuropathy with liability to pressure palsies (HNPP) were evaluated, assessing median, ulnar, fibular, tibial and sural nerves bilaterally...
August 12, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28801168/please-don-t-move-evaluating-motion-artifact-from-peripheral-quantitative-computed-tomography-scans-using-textural-features
#20
Timo Rantalainen, Paola Chivers, Belinda R Beck, Sam Robertson, Nicolas H Hart, Sophia Nimphius, Benjamin K Weeks, Fleur McIntyre, Beth Hands, Aris Siafarikas
Most imaging methods, including peripheral quantitative computed tomography (pQCT), are susceptible to motion artifacts particularly in fidgety pediatric populations. Methods currently used to address motion artifact include manual screening (visual inspection) and objective assessments of the scans. However, previously reported objective methods either cannot be applied on the reconstructed image or have not been tested for distal bone sites. Therefore, the purpose of the present study was to develop and validate motion artifact classifiers to quantify motion artifact in pQCT scans...
August 8, 2017: Journal of Clinical Densitometry
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