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Ankle fusion

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https://www.readbyqxmd.com/read/29210159/safety-of-mtor-inhibitor-continuation-in-pediatric-heart-transplant-recipients-undergoing-surgical-procedures
#1
Ann Heble, Melanie D Everitt, Jane Gralla, Shelley D Miyamoto, Michael Lahart, Jennifer Eshelman
mTOR inhibitors have been associated with SWC when used in the perioperative period. Limited literature is available to guide providers in managing chronic mTOR inhibitor use in the perioperative period, especially in the pediatric setting. The primary aim of this study was to describe the prevalence of SWC with mTOR inhibitor continuation during the perioperative period for major surgeries. Heart transplant recipients ≤25 years old at the time of primary heart transplant receiving sirolimus maintenance therapy during a surgical procedure and within the study period were included...
December 6, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/29186887/imu-based-gait-recognition-using-convolutional-neural-networks-and-multi-sensor-fusion
#2
Omid Dehzangi, Mojtaba Taherisadr, Raghvendar ChangalVala
The wide spread usage of wearable sensors such as in smart watches has provided continuous access to valuable user generated data such as human motion that could be used to identify an individual based on his/her motion patterns such as, gait. Several methods have been suggested to extract various heuristic and high-level features from gait motion data to identify discriminative gait signatures and distinguish the target individual from others. However, the manual and hand crafted feature extraction is error prone and subjective...
November 27, 2017: Sensors
https://www.readbyqxmd.com/read/29186357/outcome-of-ankle-arthrodesis-and-ankle-prosthesis-a-review-of-the-current-status
#3
Nicola Maffulli, Umile Giuseppe Longo, Joel Locher, Giovanni Romeo, Giuseppe Salvatore, Vincenzo Denaro
Introduction: In advanced stages of ankle osteoarthritis (OA), ankle arthrodesis (AA) or total ankle arthroplasty (TAR) may be necessary. Our purpose is to compare AA and total ankle replacement for the surgical management of end stage ankle OA. Sources of data: We conducted a literature search of PubMed, Medline, CINAHL, Cochrane, Embase and Google Scholar databases using the terms 'ankle' in combination with 'OA', 'arthrodesis', 'arthroplasty', 'joint fusion', 'joint replacement'...
November 23, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29175717/tibio-calcaneal-fusion-by-retrograde-intramedullary-nailing-in-charcot-neuroarthropathy
#4
Khaled M Emara, Ramy Ahmed Diab, Mohamed Amr Hemida
INTRODUCTION: Charcot's neuroarthropathy of ankle leads to instability, destruction of the joint with significant morbidity that may require an amputation. Aim of surgical treatment is to achieve painless stable plantigrade foot through arthrodesis. Achieving surgical arthrodesis in Charcot's neuroarthropathy has a high failure rate. We assess the outcomes of retrograde intramedullary interlocked nailing in tibio-talar arthrodesis for Charcot's neuroarthropathy. MATERIALS AND METHODS: 42 diabetic patients with a mean age of 49 year underwent ankle tibio-talar arthrodesis using retrograde nailing for Charcot's neuroarthropathy...
November 7, 2017: Foot
https://www.readbyqxmd.com/read/29163196/an-inertial-sensor-based-method-for-estimating-the-athlete-s-relative-joint-center-positions-and-center-of-mass-kinematics-in-alpine-ski-racing
#5
Benedikt Fasel, Jörg Spörri, Pascal Schütz, Silvio Lorenzetti, Kamiar Aminian
For the purpose of gaining a deeper understanding of the relationship between external training load and health in competitive alpine skiing, an accurate and precise estimation of the athlete's kinematics is an essential methodological prerequisite. This study proposes an inertial sensor-based method to estimate the athlete's relative joint center positions and center of mass (CoM) kinematics in alpine skiing. Eleven inertial sensors were fixed to the lower and upper limbs, trunk, and head. The relative positions of the ankle, knee, hip, shoulder, elbow, and wrist joint centers, as well as the athlete's CoM kinematics were validated against a marker-based optoelectronic motion capture system during indoor carpet skiing...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29160725/management-of-neurologic-deformity-of-the-ankle-and-foot-with-concurrent-osteomyelitis-with-the-ilizarov-method
#6
Nikolay Mikhailovich Kliushin, Anatoliy Sergeyevich Sudnitsyn, Koushik Narayan Subramanyam, Jefferson George
BACKGROUND: The combination of neurologic deformity of the ankle and foot with osteomyelitis is a therapeutic challenge. We investigated the role of Ilizarov with regard to eradication of infection, correction of deformities and improvement of patient function. METHODS: We retrospectively reviewed 77 patients (77 feet) with neurologic deformity of the ankle and foot with osteomyelitis treated sequentially in 3 stages by Ilizarov method. The 3 stages were (1) active debridement and Ilizarov stabilization, (2) further strengthening of Ilizarov fixator and active osteosynthesis consisting of strategies like arthrodesis, osteotomy distraction, bone transport, or combination thereof, (3) consolidation of fusion/regeneration achieved in second stage...
November 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29156166/allograft-bone-what-is-the-role-of-platelet-derived-growth-factor-in-hindfoot-and-ankle-fusions
#7
REVIEW
Ryan T Scott, Jeffrey E McAlister, Ryan B Rigby
Arthrodesis of the ankle or foot is a common procedure for chronic pain and disability. Nonunion remains a prevalent complication among arthrodesis procedures. Some patients present with an inherent risk of developing a nonunion. Allograft biologics have gained popularity in an effort to reduce complications such as nonunion. Various biologics bring unique properties while maintaining a singular purpose. Platelet-derived growth factor (PDGF) may be introduced into a fusion site to facilitate healthy bony consolidation...
January 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29154697/rate-of-subtalar-joint-arthrodesis-after-retrograde-tibiotalocalcaneal-arthrodesis-with-intramedullary-nail-fixation-evaluation-of-the-rain-database
#8
Michael Dujela, Christopher F Hyer, Gregory C Berlet
BACKGROUND: Hindfoot arthritis or significant deformity involving the ankle and subtalar joint (STJ) is a disabling condition with few salvage options. Many surgeons note a decreased STJ fusion rate compared with ankle union when a retrograde nail construct is used. The purpose of this study was to report the STJ fusion rate of tibiotalocalcaneal (TTC) arthrodesis with retrograde nail. METHODS: A chart and radiographic review was performed. TTC fusions performed in patients with osteoarthritis, posttraumatic arthritis, or deformity correction with retrograde nail fixation were included...
November 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29152301/persistence-of-bone-voids-after-calcaneal-bone-graft-harvest
#9
Eugene C Nwankwo, Jerry S Grimes
Objectives: The complications associated with iliac crest bone-graft harvest have resulted in the development of alternative harvest sites. Lower extremity alternative sites that have been reported for foot and ankle procedures include greater trochanter, proximal tibia, distal tibia, and calcaneus. These sites have been studied in terms of complications, postoperative pain, and quality of the harvested bone. The long-term effect of the harvest on the bone of the calcaneus has not been reported...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29146221/takedown-of-ankle-arthrodesis-with-insufficient-fibula-surgical-technique-and-intermediate-term-follow-up
#10
John M Schuberth, Jeffrey C Christensen, Chad Seidenstricker
Conversion of ankle arthrodesis to total ankle arthroplasty has recently gained popularity. However, technical challenges are present when treating patients without a sufficient fibular buttress. We describe a technique for restoration of an adequate fibular buttress using an iliac crest bone graft or malleolar relocation. The results of 10 patients with an average follow-up period of 56 (range 24 to 123) months are presented. Of the 10 patients, 3 underwent tricortical iliac bone augmentation of the fibula, 4 underwent repositioning of the remnant fibula, and in 3, the in situ fibula was used...
November 14, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29137617/surgical-treatment-for-diffused-type-giant-cell-tumor-pigmented-villonodular-synovitis-about-the-ankle-joint
#11
Xingchen Li, Yang Xu, Yuan Zhu, Xiangyang Xu
BACKGROUND: Diffused-type giant cell tumor(Dt-GCT) is a rare, aggressive disorder of the joint synovium, bursa and tendon sheaths. Osseous erosions and subchondral cysts may develop as the result of synovium infiltration in Dt-GCT. We present a retrospective study of a series of patients who are diagnosed with Dt-GCT about the ankle joint, there clinical outcome is evaluated in this study. MATERIAL AND METHOD: Fifteen patients with radiologically and histologically confirmed Dt-GCT about the ankle joint were identified in our foot and ankle department...
November 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29129314/tibiotalocalcaneal-arthrodesis-with-the-hindfoot-arthrodesis-nail-a%C3%A2-prospective-consecutive-series-from-a-single-institution
#12
Bing Howe Lee, Christopher Fang, Remesh Kunnasegaran, Gowreeson Thevendran
Tibiotalocalcaneal arthrodesis (TTCA) is a salvage procedure. We report a series of 20 patients who underwent TTCA using an intramedullary nail. Of the 20 patients, 7 (35%) had diabetes mellitus. The patient experiences and outcomes were analyzed. Their mean age was 61.1 (range 39 to 78) years. The minimum follow-up period was 13 (mean 28, range 13 to 49) months. Surgical indications included diabetic Charcot arthropathy in 7 (35%), hindfoot osteoarthritis in 10 (50%), and severe equinovarus deformity in 3 (15%)...
November 9, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29082779/role-of-extra-articular-tibiotalocalcaneal-arthrodesis-and-posterior-approach-in-highly-complex-cases
#13
Sergio Eckholt, Ruben Garcia-Elvira, Nicolás Fontecilla, Alvaro Fernandez-Reinales, Daniel Poggio
BACKGROUND: Tibiotalocalcaneal (TTC) arthrodesis is a procedure commonly used as salvage surgery for various pathologic processes that compromise the ankle and subtalar joints. It is a reasonably standardized procedure when performed as a primary surgery in advanced stages of TTC arthritis. For such cases, there are several alternative approaches, fixation materials, and bone substitutes that can be used. Most represent valid options with similar results in the literature. However, in highly complex cases requiring TTC arthrodesis, the options for the approach and fixation material can be limited...
October 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29081861/role-of-surgery-in-management-of-osteo-articular-tuberculosis-of-the-foot-and-ankle
#14
REVIEW
Mandeep Singh Dhillon, Vikas Agashe, Sampat Dumbre Patil
BACKGROUND: Tuberculosis of the foot and ankle still remains to be a significant problem, especially in the developing countries, and with an increase in incidence in immunosuppressed patients. Treatment is mainly medical using multidrug chemotherapy; surgical interventions range from biopsy, synovectomy and debridement, to joint preserving procedures like distraction in early cases, and arthrodesis of hindfoot joints and the ankle in advanced disease with joint destruction. Surgical Options: All procedures should be done after initiating appropriate medical management...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29079235/outcomes-of-locking-plate-fixation-for-hindfoot-fusion-procedures-in%C3%A2-15-patients
#15
Kenneth Smith, Ibukunoluwa Araoye, Caleb Jones, Ashish Shah
Tibiotalocalcaneal arthrodesis is a salvage procedure for various end-stage foot and ankle pathologic entities. Several factors are known to influence the union rate after these procedures, including construct rigidity. The data on locked plates as a fixation technique have been inconclusive, with variable union rates reported. One recent study suggested that locking plates can lead to high nonunion rates owing to excessive rigidity. The purpose of the present study was to retrospectively examine the outcomes of locking plate fixation...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29079232/foot-pressure-changes-before-and-after-ankle-fusion-a-pedobarograph-study
#16
Gabriel Ayonmigbesimi Akra, Akinwande Olusanya Adedapo
We performed a case-control study with the purpose of establishing the pressure patterns in the soles of the feet of patients with ankle osteoarthritis, determining whether the pattern changed after treating the arthritis with ankle joint fusion (arthrodesis), and whether the change is significant. We also studied the benefits of ankle fusion with respect to the Short-Form 36-item Health Survey and the American Orthopaedic Foot and Ankle Society Ankle-Hindfoot scale. The study included 18 participants (9 in the study group and 9 in the control group) to reach statistical significance with a 95% confidence interval (CI)...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29071125/management-of-syndesmotic-injuries-of-the-ankle
#17
Jorge de-Las-Heras Romero, Ana María Lledó Alvarez, Fernando Moreno Sanchez, Alejandro Perez Garcia, Pedro Antonio Garcia Porcel, Raul Valverde Sarabia, Marina Hernandez Torralba
Injuries to the tibioperoneal syndesmosis are more frequent than previously thought and their treatment is essential for the stability of the ankle mortise.Recognition of these lesions is essential to avoid long-term morbidity.Diagnosis often requires complete history, physical examination, weight-bearing radiographs and MRI.Treatment-oriented classification is mandatory.It is recommended that acute stable injuries are treated conservatively and unstable injuries surgically by syndesmotic screw fixation, suture-button dynamic fixation or direct repair of the anterior inferior tibiofibular ligament...
September 2017: EFORT Open Reviews
https://www.readbyqxmd.com/read/29069081/spatiotemporal-changes-in-the-distribution-of-lhfpl5-in-mice-cochlear-hair-bundles-during-development-and-in-the-absence-of-pcdh15
#18
Shanthini Mahendrasingam, Robert Fettiplace, Kumar N Alagramam, Ellen Cross, David N Furness
Mechanosensory transduction by vertebrate hair cells depends on a protein complex at the tips of shorter stereocilia associated with mechanoelectrical transduction channels activated by tip links in the hair bundle. In mammalian hair cells, this complex includes transmembrane channel-like protein subunit 1 (TMC1), lipoma HMGIC fusion partner-like 5 protein (LHFPL5) and protocadherin 15 (PCDH15), a lower-end component of the tip link. TMC1 interacts with LHFPL5 and PCDH15 but how the complex develops to maturity, and the relationships between these proteins, remains uncertain...
2017: PloS One
https://www.readbyqxmd.com/read/29060368/a-gaussian-process-regression-model-for-walking-speed-estimation-using-a-head-worn-imu
#19
Shaghayegh Zihajehzadeh, Edward J Park
Miniature inertial sensors mainly worn on waist, ankle and wrist have been widely used to measure walking speed of the individuals for lifestyle and/or health monitoring. Recent emergence of head-worn inertial sensors in the form of a smart eyewear (e.g. Recon Jet) or a smart ear-worn device (e.g. Sensixa e-AR) provides an opportunity to use these sensors for estimation of walking speed in real-world environment. This work studies the feasibility of using a head-worn inertial sensor for estimation of walking speed...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29035584/hybrid-fixation-for-ankle-fusion-in-diabetic-charcot-arthropathy
#20
Hani El-Mowafi, Mazen Abulsaad, Yasser Kandil, Ahmed El-Hawary, Samer Ali
BACKGROUND: Ankle fusion is difficult to achieve in the diabetic Charcot ankle Brodsky type 3a because of the poor quality of the bone and the inability to achieve a stable biomechanical construct. The aim of this study was to report the outcome of ankle fusion using a combination of an intramedullary nail and a circular external fixator in patients with diabetic Charcot arthropathy. METHODS: We prospectively studied 24 patients with diabetic Charcot arthropathy of the ankle who were treated by fusion of the tibiotalar joint using a combined retrograde intramedullary nail and Ilizarov external fixator...
October 1, 2017: Foot & Ankle International
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