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Tibial plateau

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https://www.readbyqxmd.com/read/28938234/is-early-total-care-a-safe-and-effective-alternative-to-staged-protocol-for-the-treatment-of-schatzker-iv-vi-tibial-plateau-fractures-in-patients-older-than-50-years
#1
Amrut Borade, Harish Kempegowda, Raveesh Richard, Jove Graham, Michael Suk, Daniel S Horwitz
OBJECTIVES: To compare "Early Total Care" (ETC) with "Staged Protocol" (SP) for the treatment of Schatzker IV-VI tibial plateau fractures in patients older than 50 years regarding safety and effectiveness. DESIGN: Retrospective cohort study. SETTING: An academic level 1 US trauma center. PATIENTS/PARTICIPANTS: Eighty-one patients older than 50 years with Schatzker grade IV-VI tibial plateau fractures were included. INTERVENTION: Fifty-three patients were treated under SP with immediate external fixation followed by definitive internal fixation...
September 19, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28934935/treatment-and-outcomes-of-tumor-induced-osteomalacia-associated-with-phosphaturic-mesenchymal-tumors-retrospective-review-of-12-patients
#2
Qing-Yao Zuo, Hong Wang, Wei Li, Xiao-Hui Niu, Yan-Hong Huang, Jia Chen, Yu-Hua You, Bao-Yue Liu, Ai-Min Cui, Wei Deng
BACKGROUND: Tumor-induced osteomalacia (TIO) is a rare paraneoplastic syndrome characterized by severe hypophosphatemia and osteomalacia. Nonspecific symptoms make the diagnosis elusive. In addition, locating the responsible tumor(s) is challenging. The aim of this study was to investigate the clinical management and outcomes of TIO. METHODS: The clinical features, diagnostic procedures, treatment, and outcomes of 12 patients were reviewed retrospectively. RESULTS: The cohort comprised six men and six women (mean age 45...
September 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28924356/reproducibility-of-schatzker-classification-through-smartphone-applications
#3
Mauro Rodrigues Dos Santos, Junichiro Sado, Roberto Medeiros de Sousa, Osman Rodrigues Roriz
OBJECTIVE: To evaluate the intra-observer reproducibility of Schatzker classification for tibial plateau fractures through smartphone applications. METHODS: Radiographs were evaluated in two incidences (anteroposterior and profile) and CT slices (axial, sagittal and coronal) of 37 patients with tibial plateau fracture. Two evaluators, knee surgery experts, classified the cases by viewing the images of the isolated radiographs and then X-rays associated with CT slices in four different stages via smartphones and then presential assessment...
November 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28924102/microrna-483-5p-modulates-the-expression-of-cartilage-related-genes-in-human-chondrocytes-through-down-regulating-tgf-%C3%AE-1-expression
#4
Ronghua Xu, Jiayi Li, Bo Wei, Weiling Huo, Liming Wang
Transforming growth factor-β1 (TGF-β1) has been reported to improve chondrocytes phenotype and function. The expression levels of microRNA-483-5p (miR-483-5p), a potential regulator of TGF-β signaling pathway, were elevated in chondrocytes of patients with osteoarthritis. In this study, we aimed to explore the role of miR-483-5p for the expression of cartilage-related genes in chondrocytes. Human chondrocytes were harvested from femoral condyle and tibial plateau of different donors (n = 10) following amputation due to sarcomas not involving the joint space...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28910829/postoperative-computed-tomography-evaluation-of-posterior-tibial-plateau-fractures-mean-7-year-clinical-follow-up
#5
Dongzhe Li, Yue Fang, Yu Liang, Kunlong Ma, Chang Zou
No abstract text is available yet for this article.
September 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28910722/analysis-of-in-vivo-articular-cartilage-contact-surface-of-the-knee-during-a-step-up-motion
#6
Peng Yin, Jing-Sheng Li, Willem A Kernkamp, Tsung-Yuan Tsai, Seung-Hoon Baek, Ali Hosseini, Lin Lin, Peifu Tang, Guoan Li
BACKGROUND: Numerous studies have reported on the tibiofemoral articular cartilage contact kinematics, however, no data has been reported on the articular cartilage geometry at the contact area. This study investigated the in-vivo tibiofemoral articular cartilage contact biomechanics during a dynamic step-up motion. METHODS: Ten healthy subjects were imaged using a validated magnetic resonance and dual fluoroscopic imaging technique during a step-up motion. Three-dimensional bone and cartilage models were constructed from the magnetic resonance images...
September 8, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28899386/improved-clinical-outcome-measures-of-knee-pain-and-function-with-concurrent-resolution-of-subchondral-bone-marrow-edema-lesion-and-joint-effusion-in-an-osteoarthritic-patient-following-pentosan-polysulphate-sodium-treatment-a-case-report
#7
Matthew J Sampson, Margie Kabbani, Ravi Krishnan, Michael Nganga, Annika Theodoulou, Jeganath Krishnan
BACKGROUND: At present, there are no registered products for the treatment of subchondral Bone Marrow Edema Lesion (BML) and associated knee pain. Patients who do not respond to current anti-inflammatory therapies are left with limited treatment options, and may resort to operative management with Total Knee Arthroplasty (TKA). We report the use of Pentosan Polysulphate Sodium (PPS) for the treatment of BMLs of the knee. CASE PRESENTATION: We report the case of a 70-year-old female with knee osteoarthritis presenting with a high level of knee pain, scoring 8 on the Numerical Rating Scale (NRS), and functional limitation demonstrating a poor Lysholm Knee Score of 37...
September 12, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28888901/oral-administration-of-undenatured-native-chicken-type-ii-collagen-uc-ii-diminished-deterioration-of-articular-cartilage-in-a-rat-model-of-osteoarthritis-oa
#8
C M Bagi, E R Berryman, S Teo, N E Lane
OBJECTIVE: The aim of this study was to determine the ability of undenatured native chicken type II collagen (UC-II) to prevent excessive articular cartilage deterioration in a rat model of osteoarthritis (OA). METHODS: Twenty male rats were subjected to partial medial meniscectomy tear (PMMT) surgery to induce OA. Immediately after the surgery 10 rats received vehicle and another 10 rats oral daily dose of UC-II at 0.66 mg/kg for a period of 8 weeks. In addition 10 naïve rats were used as an intact control and another 10 rats received sham surgery...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28873488/corrective-intra-articular-osteotomies-for-tibial-plateau-malunion
#9
Mauricio Kfuri, Joseph Schatzker
No abstract text is available yet for this article.
September 5, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28856482/hyperextension-injuries-of-the-knee-do-patterns-of-bone-bruising-predict-soft-tissue-injury
#10
A M Ali, J K Pillai, V Gulati, C E R Gibbons, B J Roberton
OBJECTIVE: To establish whether patterns of soft tissue injury following knee hyperextension are associated with post-traumatic 'bone bruise' distribution. MATERIALS AND METHODS: Patients with a knee MRI within one year of hyperextension injury were identified at our institution over a 7 year period. MRIs, plain radiographs and clinical details of these patients were reviewed. RESULTS: Twenty-five patients were identified (median time from injury to MRI = 24 days)...
August 31, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28854768/efficacy-of-joins-on-cartilage-protection-in-knee-osteoarthritis-prospective-randomized-controlled-trial
#11
Joong Il Kim, Ja Young Choi, Kwang Gi Kim, Myung Chul Lee
Purpose: In this study, we compared the clinical efficacy of JOINS (SKI306X, SK Chemicals) with placebo on cartilage protection using magnetic resonance imaging (MRI). Materials and Methods: Sixty-nine patients were randomized to the JOINS group (200 mg, three times daily for 1 year; n=33) or the placebo group (n=36). Changes in cartilage volume and thickness were measured using MRI. Changes in the delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) index, subchondral bone marrow abnormality scores, and clinical scores including knee pain visual analog scale (VAS) score and Korean Western Ontario and McMaster Universities Osteoarthritis Index (K-WOMAC) were also evaluated...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28852336/tibial-plateau-fractures-a-new-rank-ordering-method-for-determining-to-what-degree-injury-severity-or-quality-of-reduction-correlate-with-clinical-outcome
#12
Katie Freeman, Jared L Michalson, Donald D Anderson, Thomas D Brown, Thomas A DeCoster, Douglas R Dirschl, Matthew D Karam, J Lawrence Marsh
BACKGROUND: Injury severity may be the most important factor in determining outcome after articular fractures, but there is a surprising paucity of clinical evidence to support this assertion. The purpose of this study was to utilize a new method for rank ordering a group of patient radiographs to assess the effect of injury severity and quality of reduction on patient outcomes after tibial plateau fractures. METHODS: Tibial plateau fractures in 64 patients were treated operatively or non-operatively based on physician preference from standard of care techniques...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28841730/corrective-osteotomies-for-complex-intra-articular-tibial-plateau-malunions-using-three-dimensional-virtual-planning-and-novel-patient-specific-guides
#13
Huixiang Wang, Simon Newman, Jiandong Wang, Qian Wang, Qiugen Wang
No abstract text is available yet for this article.
August 25, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28840154/do-tibial-plateau-fractures-worsen-outcomes-of-knee-ligament-injuries-a-matched-cohort-analysis
#14
Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Bradley M Kruckeberg, Jonas Pogorzelski, Robert F LaPrade
BACKGROUND: Tibial plateau fractures account for a small portion of all fractures; however, these fractures can pose a surgical challenge when occurring concomitantly with ligament injuries. PURPOSE/HYPOTHESIS: The purpose of this study was to compare 2-year outcomes of soft tissue reconstruction with or without a concomitant tibial plateau fracture and open reduction internal fixation. We hypothesized that patients with a concomitant tibial plateau fracture at the time of soft tissue surgery would have inferior outcomes compared with patients without an associated tibial plateau fracture...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28839351/relationship-between-severity-of-knee-osteoarthritis-and-radiography-findings-of-lower-limbs-a-cross-sectional-study-from-the-toei-survey
#15
Mitsuru Hanada, Hironobu Hoshino, Hiroshi Koyama, Yukihiro Matsuyama
OBJECTIVE: This study aimed to compare radiographic parameters among radiographic severity of the medial knee osteoarthritis and between men and women in a rural Japanese population. METHODS: We measure nine radiographic parameters of the whole lower extremity in participants with neutral or varus alignment. RESULTS: Age and body mass index were related to the knee osteoarthritis severity. The knee osteoarthritis depended on not only varus alignment in the whole leg, but also varus deformity of proximal tibial condyle and the tibial plateau inclination, especially in women...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28835342/loss-of-acl-function-leads-to-alterations-in-tibial-plateau-common-dynamic-contact-stress-profiles
#16
Tony Chen, Hongsheng Wang, Russell Warren, Suzanne Maher
It has been suggested that the repetitive nature of altered joint tissue loading which occurs after anterior cruciate ligament (ACL) rupture can contribute to the development of osteoarthritis (OA). However, changes in dynamic knee joint contact stresses after ACL rupture have not been quantified for activities of daily living. Our objective was to characterize changes in dynamic contact stress profiles that occur across the tibial plateau immediately after ACL transection. By subjecting sensor-augmented cadaveric knees to simulated gait, and analyzing the resulting contact stress profiles using a normalized cross-correlation algorithm, we tested the hypothesis that common changes in dynamic contact stress profiles exist after ACL injury...
August 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28833285/a-novel-jig-arm-to-measure-tibial-plateau-angle-during-tibial-plateau-leveling-osteotomy
#17
Kyle N Restle, Jeffery J Biskup
OBJECTIVE: To determine the ability of a novel device attached to the proximal tibial plateau leveling osteotomy (TPLO) jig pin to accurately predict intraoperative change in tibial plateau angle (TPA). STUDY DESIGN: In vitro cadaveric study. SAMPLE POPULATION: Left hindlimbs of adult dogs (n = 9). METHODS: A modified Slocum tibial plateau leveling (TPL) jig with the Rotational Osteotomy Measuring Arm (ROMA) was placed on the tibia and a radial TPLO osteotomy was performed...
August 22, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28831554/the-impact-of-patient-specific-instrumentation-on-unicompartmental-knee-arthroplasty-a-prospective-randomised-controlled-study
#18
Abtin Alvand, Tanvir Khan, Cathy Jenkins, Jonathan L Rees, William F Jackson, Christopher A F Dodd, David W Murray, Andrew J Price
PURPOSE: Patient-specific instrumentation (PSI) has been proposed as a means of improving surgical accuracy and ease of implantation during technically challenging procedures such as unicompartmental knee arthroplasty (UKA). The purpose of this prospective randomised controlled trial was to compare the accuracy of implantation and functional outcome of mobile-bearing medial UKAs implanted with and without PSI by experienced UKA surgeons. METHODS: Mobile-bearing medial UKAs were implanted in 43 patients using either PSI guides or conventional instrumentation...
August 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28828263/the-effects-of-captive-versus-wild-rearing-environments-on-long-bone-articular-surfaces-in-common-chimpanzees-pan-troglodytes
#19
Kristi L Lewton
The physical environments of captive and wild animals frequently differ in substrate types and compliance. As a result, there is an assumption that differences in rearing environments between captive and wild individuals produce differences in skeletal morphology. Here, this hypothesis is tested using a sample of 42 captive and wild common chimpanzees (Pan troglodytes). Articular surface areas of the humerus, radius, ulna, femur, and tibia were calculated from linear breadth measurements, adjusted for size differences using Mosimann shape variables, and compared across sex and environmental groups using two-way ANOVA...
2017: PeerJ
https://www.readbyqxmd.com/read/28812041/anthropometric-and-skeletal-parameters-predict-2-strand-semitendinosus-tendon-size-in-double-bundle-anterior-cruciate-ligament-reconstruction
#20
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
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