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https://www.readbyqxmd.com/read/28236603/computational-modelling-of-bone-fracture-healing-under-partial-weight-bearing-exercise
#1
Lihai Zhang, Saeed Miramini, Martin Richardson, Peter Ebeling, David Little, Yi Yang, Zhiyong Huang
A great deal of evidence suggests that partial weight-bearing exercise plays an important role in bone fracture healing. However, current physiotherapy program tends to follow the "Let's try it and see" strategy due to the lack of a fundamental understanding of in vivo mechanical environment required for the better healing outcomes. The purpose of present study is to develop an innovative framework to predict the healing outcomes as a result of post-surgical physical therapy. The raw acceleration data corresponding to a series of walking tests is firstly captured by ActiGraph accelerometers, and then used as input to theoretically estimate the peak ground reaction force (PGRF) and peak loading rate (PLR)...
February 21, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28229193/osseointegrated-prostheses-for-rehabilitation-following-amputation-the-pioneering-swedish-model
#2
Yan Li, Rickard Brånemark
The direct attachment of osseointegrated (OI) prostheses to the skeleton avoids the inherent problems of socket suspension. It also provides physiological weight bearing, improved range of motion in the proximal joint, as well as osseoperceptive sensory feedback, enabling better control of the artificial limbs by amputees. The present article briefly reviews the pioneering efforts on extremity osseointegration surgeries in Sweden and the development of the OPRA (Osseointegrated Prostheses for the Rehabilitation of Amputees) program...
February 22, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28228787/fix-and-replace-an-emerging-paradigm-for-treating-acetabular-fractures
#3
Colin G Murphy, Andrew D Carrothers
Although technically challenging even for the experienced surgeon, simultaneous open reduction and internal fixation (ORIF) of acetabular fracture and total hip replacement (THR) have some potential advantages over the more traditional treatment options in specific patient subgroups; theoretically allowing immediate weight bearing and faster rehabilitation, reducing the cost of inpatient stay, and reducing the risks of early and late local complications associated with standard treatment for this type of injury...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28224272/biomechanical-evaluation-of-reconstruction-plates-with-locking-nonlocking-and-hybrid-screws-configurations-in-calcaneal-fracture-a-finite-element-model-study
#4
Ching-Hsuan Chen, Chinghua Hung, Yu-Chun Hsu, Chen-Sheng Chen, Chao-Ching Chiang
Calcaneal fractures are the most common fractures of the tarsal bones. The stability of fixation is an important factor for successful reconstruction of calcaneal fractures. The purpose of this study was to analyze the biomechanical influence of plate fixation with different combinations of locking and nonlocking screws during early weight-bearing phase. A three-dimensional FE foot model was established using ANSYS software, which comprised bones, cartilages, plantar fascia, and soft tissue. Calcaneal plate was fixed with whole locking (WLS), whole nonlocking (WNS), and hybrid screw configurations for FE analysis...
February 21, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28212661/partial-versus-early-full-weight-bearing-after-uncemented-total-hip-arthroplasty-a-meta-analysis
#5
Peng Tian, Zhi-Jun Li, Gui-Jun Xu, Xiao-Lei Sun, Xin-Long Ma
BACKGROUND: This meta-analysis aimed to investigate the efficacy and safety of partial weight bearing (PWB) versus early full weight bearing (FWB) after uncemented total hip arthroplasty (THA). METHODS: We conducted a search in PubMed, EMBASE, The Cochrane Library, and Web of Science for randomized controlled trials (RCTs) and non-RCTs comparing PWB and early FWB after uncemented THA. Two authors conducted the selection of studies, data extraction, and assessment of risk of bias independently...
February 17, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28196037/early-rather-than-late-weight-bearing-and-range-of-motion-exercise-improved-early-function-but-not-time-to-return-to-work-after-surgical-fixation-of-unstable-ankle-fractures
#6
John T Gorczyca
No abstract text is available yet for this article.
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28164055/proximal-tibial-epiphysis-injury-flexion-type-salter-harris-type-1
#7
Pratik Israni, Mangesh Panat
INTRODUCTION: Fractures of the proximal tibial epiphysis rare. It has been estimated that fractures of the upper tibial epiphysis account for 0.5-3.1% of all epiphyseal injuries. Who had no neurovascular deficit, with fixed extension deformity at the left knee was treated early with closed reduction techniques. CASE REPORT: We present a case of a 16-year-old boy who while playing cricket on the road was hit by a car. The patient presented in emergency room with extremely swollen knee and soft tissue swelling (hemarthrosis), he was unable to lift his leg actively due to severe pain because of hamstrings spasm, and he had no wound over his left knee and had no other associated injuries...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28160028/one-stage-bilateral-implantation-of-a%C3%A2-calcar-guided-short-stem-in%C3%A2-total-hip-arthroplasty-minimally-invasive-modified-anterolateral-approach-in-supine-position
#8
K P Kutzner, S Donner, M Schneider, J Pfeil, P Rehbein
OBJECTIVE: One-stage bilateral, muscle-preserving, calcar-guided implantation technique through the modified minimally invasive anterolateral approach in supine position. INDICATIONS: Bilateral primary/secondary osteoarthritis of the hip; bilateral femoral head necrosis; ASA I-III. CONTRAINDICATIONS: ASA IV; severe osteoporosis, other factors jeopardizing stable anchorage of cementless, calcar-guided short-stem; infection. SURGICAL TECHNIQUE: Supine position...
February 3, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28138038/early-suppression-of-adipocyte-lipid-turnover-induces-immunometabolic-modulation-in-cancer-cachexia-syndrome
#9
Felipe Santos Henriques, Rogério Antônio Laurato Sertié, Felipe Oliveira Franco, Pamela Knobl, Rodrigo Xavier Neves, Sandra Andreotti, Fabio Bessa Lima, Adilson Guilherme, Marilia Seelaender, Miguel Luiz Batista
Cancer cachexia is a multifactorial syndrome characterized by body weight loss, atrophy of adipose tissue (AT) and systemic inflammation. However, there is restrict information regarding the mechanisms of immunometabolic response in AT from cancer cachexia. Male Wistar rats were inoculated with 2 × 10(7) of Walker 256 tumor cells [tumor bearing (TB)]. The mesenteric AT (MeAT) was collected on d 0, 4, 7 (early stage), and 14 (cachexia stage) after tumor cell injection. Surgical biopsies for MeAT were obtained from patients who had gastrointestinal cancer with cachexia...
January 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28137928/efficiency-of-physical-therapy-on-postural-imbalance-after-stroke-study-protocol-for-a-systematic-review-and-meta-analysis
#10
A Hugues, J Di Marco, P Janiaud, Y Xue, J Pires, H Khademi, M Cucherat, I Bonan, F Gueyffier, G Rode
INTRODUCTION: Stroke frequently results in balance disorders, leading to lower levels of activity and a diminution in autonomy. Current physical therapies (PT) aiming to reduce postural imbalance have shown a large variety of effects with low levels of evidence. The objectives are to determine the efficiency of PT in recovering from postural imbalance in patients after a stroke and to assess which PT is more effective. METHODS AND ANALYSIS: We will search several databases from inception to October 2015...
January 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28132085/tibial-condylar-valgus-osteotomy-tcvo-for-osteoarthritis-of-the-knee-5-year-clinical-and-radiological-results
#11
Ko Chiba, Akihiko Yonekura, Takashi Miyamoto, Makoto Osaki, Goji Chiba
PURPOSE: Tibial condylar valgus osteotomy (TCVO) is a type of opening-wedge high tibial osteotomy for advanced medial knee osteoarthritis (OA) with subluxated lateral joint. We report the concept, the current surgical technique with a locking plate, and the short-term clinical and radiological results of this procedure. METHODS: 11 knees with medial OA and a widened lateral joint were treated by TCVO (KL stage III: 6, IV: 5). In this procedure, by the L-shaped osteotomy from the medial side of the proximal tibia to the intercondylar eminence and the valgus correction, lateralization of the mechanical axis and reduction of the subluxated lateral joint are obtained with early postoperative weight-bearing...
January 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28127650/primary-surgical-repair-of-acute-achilles-tendon-rupture-comparative-results-of-three-surgical-techniques
#12
Dragan Lonzarić, Aleksandar Kruščić, Dejan Dinevski, Petra Povalej Bržan, Breda Jesenšek Papež
PURPOSE: To determine which of the three surgical techniques for acute unilateral complete rupture of Achilles tendons in use at the University Clinical Centre Maribor gives the best short-term functional results. METHODS: In the retrospective analysis of the results of 3 surgical techniques, 262 patients of which 244 (93.1%) were men (mean age 41.6 ± 10.0 years, range 21.5-83.0 years) operated on during the period from 2000 to 2008 were included. Group A (open technique with fascial augmentation) included 42 (16%) patients, group B (original modification of percutaneous suturing according to Čretnik and Kosanović) included 159 (60...
January 26, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28126693/differences-in-knee-adduction-moment-between-healthy-subjects-and-patients-with-osteoarthritis-depend-on-the-knee-axis-definition
#13
S Meireles, F De Groote, S Van Rossom, S Verschueren, I Jonkers
OBJECTIVE: This study, firstly, investigates the effect of using an anatomical versus a functional axis of rotation (FAR) on knee adduction moment (KAM) in healthy subjects and patients with knee osteoarthritis (KOA). Secondly, this study reports KAM for models with FAR calculated using weight-bearing and non-weight-bearing motion. DESIGN: Three musculoskeletal models were created using OpenSim with different knee axis of rotation (AR): transepicondylar axis (TEA); FAR calculated based on SARA algorithm using a weight-bearing motion (wFAR) and a non-weight-bearing motion (nwFAR)...
January 19, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28116276/is-early-weight-bearing-allowed-in-surgically-treated-talar-neck-fractures
#14
P H S Kalmet, S Sanduleanu, Y Y V Horn, M Poeze, P R G Brink
INTRODUCTION: Non-or partial weight bearing is frequently the standard treatment after peri-articular lower extremity fractures. Displaced talar neck fractures are severe injuries compromising vascularity of the corpus and consequently are at risk for non-union and avascular necrosis, the main reason to restrict weight bearing for up to three months according to most literature. CASE PRESENTATION: We report a case of a 31-year old male with a high impact car accident...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28111703/total-hip-replacement-in-complex-acetabular-fractures-using-a-coned-hemipelvic-acetabular-component
#15
Samuel E McMahon, Laurence A Cusick
Acetabular fractures in the elderly are a challenging clinical problem due to both the complex nature of operative intervention, osteoporotic bone and the multiple comorbidities of the patients involved. They are associated with poor functional outcomes and high levels of morbidity and mortality. Treatment currently ranges from conservative treatment, open reduction internal fixation and variations of total hip arthroplasty. We present the surgical technique and early results of the use of a coned hemipelvic acetabular component in the primary treatment of these complex injuries...
January 23, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28104228/the-efficacy-of-posterior-plating-and-anterior-column-screw-fixation-in-the-management-of-t-shaped-acetabular-fractures-cart-analysis-of-prospective-cohort-study
#16
A S Hammad, T A El-Khadrawe, A H Waly, G A Abu-Sheasha
T-shaped acetabular fractures are challenging injuries. The goal of surgical treatment is to achieve a stable and a concentric reduction of the femoral head under the anatomically reduced weight-bearing dome. There is an ongoing debate about the ideal approach and fixation method for T-shaped fractures. In this study, a group of 34 patients with T-shaped acetabular fractures were treated by posterior plating and anterior column screw. All patients, were followed for at least two years or until hip replacement...
January 9, 2017: Injury
https://www.readbyqxmd.com/read/28101776/plyometric-exercise-and-bone-health-in-children-and-adolescents-a-systematic-review
#17
REVIEW
Alejandro Gómez-Bruton, Ángel Matute-Llorente, Alejandro González-Agüero, José A Casajús, Germán Vicente-Rodríguez
BACKGROUND: Many jumping interventions have been performed in children and adolescents in order to improve bone-related variables and thus, ensure a healthy bone development during these periods and later in life. This systematic review aims to summarize and update present knowledge regarding the effects that jumping interventions may have on bone mass, structure and metabolism in order to ascertain the efficacy and durability (duration of the effects caused by the intervention) of the interventions...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28097423/rehabilitation-of-achilles-tendon-ruptures-is-early-functional-rehabilitation-daily-routine
#18
B Frankewycz, W Krutsch, J Weber, A Ernstberger, M Nerlich, Christian G Pfeifer
INTRODUCTION: Ruptures of the Achilles tendon are the most common tendon injuries of the lower extremities. Besides the initial operative or non-operative treatment, rehabilitation of patients plays a crucial role for tendon healing and long-term outcome. As only limited evidence is available for optimized rehabilitation regimen and guidelines for the initial (e.g., first 6 weeks) rehabilitation are limited, this study investigated the current rehabilitation concepts after Achilles tendon rupture...
January 17, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28090441/principal-component-analysis-t1%C3%AF-voxel-based-relaxometry-of-the-articular-cartilage-a-comparison-of-biochemical-patterns-in-osteoarthritis-and-anterior-cruciate-ligament-subjects
#19
Valentina Pedoia, Colin Russell, Allison Randolph, Xiaojuan Li, Sharmila Majumdar
BACKGROUND: Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28051969/effects-of-adding-neuromuscular-electrical-stimulation-to-traditional-military-amputee-rehabilitation
#20
Laura A Talbot, Emily Brede, E Jeffrey Metter
BACKGROUND: Traumatic transtibial amputations lead to an early decline in the use and weight bearing of the residual limb. These changes result in progressive quadriceps muscle atrophy with strength loss that affects standing and walking. Neuromuscular electrical stimulation (NMES) may be useful as an adjunct to amputee prosthetic rehabilitation to maintain quadriceps muscle strength and mass. The objective of this pilot study was to compare the effects of a home-based NMES rehabilitation program plus the traditional military amputee rehabilitation program (TMARP) to the effects of TMARP alone on quadriceps muscle strength, functional mobility, and pain in military service members after a combat-related lower extremity amputation...
January 2017: Military Medicine
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