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https://www.readbyqxmd.com/read/28075051/bilateral-multifocal-upper-extremity-atypical-granular-cell-tumors-presenting-as-long-standing-right-wrist-and-left-hand-masses-in-a-15-year-old-african-american-female
#1
Michael DeWall, Corey O Montgomery, Jerad M Gardner
Granular cell tumor (GrCT) is a benign nerve sheath tumor. Atypical and malignant variants of GrCT are rare but have been well described. We report a case of multifocal symmetric atypical GrCT in the bilateral hand/wrists of a 15 year old African American female. The initial clinical impression for both masses were favored to be ganglion cysts. Ultrasound findings of both masses revealed hypoechoic soft tissue lesions with some internal echogenicity favoring complex cysts. On excision, both masses were histologically circumscribed, lobulated, and attached to tendon...
January 11, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28074671/effect-of-illusory-kinesthesia-on-hand-function-in-patients-with-distal-radius-fractures-a-quasi-randomized-controlled-study
#2
Ryota Imai, Michihiro Osumi, Tomoya Ishigaki, Shu Morioka
OBJECTIVES: We investigated the effects of the illusion of motion through tendon vibration on hand function in patients with distal radius fractures. SETTING: Kawachi General Hospital, Japan. SUBJECTS: A total of 22 patients with distal radius fractures were divided into either an illusory kinesthesia group ( n = 11) or a control group ( n = 11). INTERVENTION: We performed the intervention for seven consecutive days after surgery...
January 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28074645/highly-sensitive-bendable-and-foldable-paper-sensors-based-on-reduced-graphene-oxide
#3
Biswajit Saha, Sangwoong Baek, Junghoon Lee
Over the past decade, the demand for high-performance wearable sensors has increased because of their capability for interaction with humans. Such sensors have typically been prepared on conventional substrates, such as silicon, PDMS, and copper mesh. In this work, we propose a class of wearable sensors fabricated from reduced graphene oxide (rGO) patterned paper substrates (rGO-paper). These rGO-paper sensors are highly sensitive to various deformations and capable of measuring bending and folding angles as small as 0...
January 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28072711/the-coexistence-of-sapho-syndrome-and-rheumatoid-arthritis-a-case-report
#4
Wenrui Xu, Chen Li, Weihong Zhang
RATIONAL: SAPHO (Synovitis-Acne-Pustulosis-Hyperstosis-Osteitis) syndrome is a rare disease featured by its dermatological and osteoarthritic disorders, the latter of which mainly affecting the anterior chest wall, spine, and sacroiliac joint. However, rheumatoid arthritis (RA) is a chronic autoimmune disease, mainly affecting the synovial tissue of small joints in hands and feet. Here, we present an extremely rare case diagnosed with both SAPHO syndrome and RA, with an onset interval of 10 years...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28069028/robot-aided-developmental-assessment-of-wrist-proprioception-in-children
#5
Francesca Marini, Valentina Squeri, Pietro Morasso, Claudio Campus, Jürgen Konczak, Lorenzo Masia
BACKGROUND: Several neurodevelopmental disorders and brain injuries in children have been associated with proprioceptive dysfunction that will negatively affect their movement. Unfortunately, there is lack of reliable and objective clinical examination protocols and our current knowledge of how proprioception evolves in typically developing children is still sparse. METHODS: Using a robotic exoskeleton, we investigated proprioceptive acuity of the wrist in a group of 49 typically developing healthy children (8-15 years), and a group of 40 young adults...
January 9, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28068293/a-hybrid-bmi-based-exoskeleton-for-paresis-emg-control-for-assisting-arm-movements
#6
Toshihiro Kawase, Takeshi Sakurada, Yasuharu Koike, Kenji Kansaku
OBJECTIVE: Brain-machine interface (BMI) technologies have succeeded in controlling robotic exoskeletons, enabling some paralyzed people to control their own arms and hands. We have developed an exoskeleton asynchronously controlled by EEG signals. In this study, to enable real-time control of the exoskeleton for paresis, we developed a hybrid system with EEG and EMG signals, and the EMG signals were used to estimate its joint angles. APPROACH: Eleven able-bodied subjects and two patients with upper cervical spinal cord injuries (SCIs) performed hand and arm movements, and the angles of the metacarpophalangeal (MP) joint of the index finger, wrist, and elbow were estimated from EMG signals using a formula that we derived to calculate joint angles from EMG signals, based on a musculoskeletal model...
January 9, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28065641/mdct-of-hand-and-wrist-infections-emphasis-on-compartmental-anatomy
#7
REVIEW
S Ahlawat, F M Corl, D M LaPorte, E K Fishman, L M Fayad
Hand and wrist infections can present with a spectrum of manifestations ranging from cellulitis to deep-space collections. The various infectious processes can be categorised as superficial or deep infections based on their respective locations relative to the tendons. Superficial hand infections are located superficial to the tendons and are comprised of cellulitis, lymphangitis, paronychia, pulp-space infections, herpetic whitlow, and include volar as well as dorsal subcutaneous abscesses. Deep hand infections are located deep to the tendon sheaths and include synovial space infections, such as infectious tenosynovitis, deep fascial space infections, septic arthritis, necrotising fasciitis, and osteomyelitis...
January 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28064351/orthopedic-trauma-surgery-and-hospital-cost-analysis-in-refugees-the-effect-of-the-syrian-civil-war
#8
Altuğ Duramaz, Mustafa Gökhan Bilgili, Berhan Bayram, Nezih Ziroğlu, Alkan Bayrak, Mustafa Cevdet Avkan
PURPOSE: The aim of this study was to evaluate the musculoskeletal injury types, injury mechanisms, surgical techniques and treatment costs of Syrian refugees. METHODS: Totally 158 patients (67 female, 91 male) treated in our clinic in 34 months period between January 2012 and October 2014 were included in the study. The mean age of the patients was 39.3 years (range: 18-82 years). The patients were evaluated for age, gender, mechanism of injury, location and type of fracture, presence of accompanying injuries, injury severity score, surgical technique, complications, mortality/morbidity and treatment cost...
January 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28063895/improvement-of-table-tennis-dystonia-by-stereotactic-ventro-oral-thalamotomy-a-case-report
#9
Takashi Asahi, Takaomi Taira, Kiyonobu Ikeda, Jiro Yamamoto, Shuji Sato
BACKGROUND: Task-specific focal dystonia, such as writer's cramp and musician's cramp, is a type of dystonia that affects performance of particular tasks. Such movement disorders have been treated with stereotactic ventro-oral (Vo) thalamotomy, with excellent outcomes. However, there has been no previous report of treatment of sport-related/athlete's dystonia by means of stereotactic surgery. We treated a patient with table tennis-related dystonia with Vo thalamotomy, and evaluated the outcome...
January 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28061779/a-motion-classification-strategy-based-on-semg-eeg-signal-combination-for-upper-limb-amputees
#10
Xiangxin Li, Oluwarotimi Williams Samuel, Xu Zhang, Hui Wang, Peng Fang, Guanglin Li
BACKGROUND: Most of the modern motorized prostheses are controlled with the surface electromyography (sEMG) recorded on the residual muscles of amputated limbs. However, the residual muscles are usually limited, especially after above-elbow amputations, which would not provide enough sEMG for the control of prostheses with multiple degrees of freedom. Signal fusion is a possible approach to solve the problem of insufficient control commands, where some non-EMG signals are combined with sEMG signals to provide sufficient information for motion intension decoding...
January 7, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28060689/-schwannoma-of-the-upper-extremity-retrospective-analysis-of-17-cases
#11
Ângelo Sá, Leandro Nobre Azevedo, Luísa Cunha
INTRODUCTION: Schwannoma or neurilemmoma is a benign peripheric nerve tumor that usually presents as a slow growing single lesion; it has origin in Schwann cells proliferation. Although it represents a small percentage of the benign tumors of the upper arm, it is the most frequent of neural origin. We present a retrospective study of upper limb schwannomas; our aim is establish the appropriate preoperative approach, to recognise the efficiency of the treatment and the pos-operative follow-up...
September 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28060387/reversible-median-nerve-impairment-after-three-weeks-of-repetitive-work
#12
Sorosh Tabatabaeifar, Susanne Wulff Svendsen, Birger Johnsen, Gert-Åke Hansson, Anders Fuglsang-Frederiksen, Poul Frost
Objectives The aim of this study was to evaluate the development of impaired median nerve function in relation to hand-intensive seasonal work. We hypothesized that at end-season, median nerve conduction would be impaired and then recover within weeks. Methods Using nerve conduction studies (NCS), we examined median nerve conduction before, during, and after engaging in 22 days of mink skinning. For a subgroup, we used goniometry and surface electromyography to characterize occupational mechanical exposures...
January 6, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/28059962/intraoperative-micro-breaks-with-targeted-stretching-enhance-surgeon-physical-function-and-mental-focus-a-multicenter-cohort-study
#13
Adrian E Park, Hamid R Zahiri, M Susan Hallbeck, Vedra Augenstein, Erica Sutton, Denny Yu, Bethany R Lowndes, Juliane Bingener
OBJECTIVE: The aim of this study was to investigate the effect of intraoperative targeted stretching micro breaks (TSMBs) on the experienced pain and fatigue, physical functions, and mental focus of surgeons. BACKGROUND: Surgeons are routinely subject to mental and physical stresses through the course of their work in the operating room. One of the factors most contributory to the shortening of a surgeon's career is work-related pain and its effects on patient safety and personal relationships...
February 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28058573/anterior-wrist-and-medial-malleolus-as-the-novel-sites-of-tissue-selection-a-retrospective-study-on-electric-shock-death-through-the-hand-to-foot-circuit-pathway
#14
Guangtao Xu, Ruibing Su, Junyao Lv, Bo Hu, Huan Gu, Xianxian Li, Jiang Gu, Xiaojun Yu
Our previous work demonstrated that characteristic changes could occur in the anterior wrist and medial malleolus in electric deaths through the hand-to-foot electric circuit pathway in an electric shock rat model. However, whether the same phenomenon occurs in humans is unknown. The aim of the present retrospective study was to ascertain whether the anterior wrist and medial malleolus could also be selected as the promising and significant sites in electric death through the hand-to-foot circuit pathway. Nineteen human cases from the autopsy and one clinical survivor who sustained a severe electric shock through the hand-to-foot circuit pathway were analyzed...
January 6, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28054301/ranking-hand-movements-for-myoelectric-pattern-recognition-considering-forearm-muscle-structure
#15
Youngjin Na, Sangjoon J Kim, Sungho Jo, Jung Kim
Previous pattern recognition algorithms using surface electromyography (sEMG) have been developed for subsets of predefined hand movements without considering muscle structure. In order to decode hand movements, it is important to know which movements are appropriate for PR due to the different independence of movements between individuals and the high correlated characteristics of sEMG patterns between movements. This paper proposes a method to personally rank the order of hand movements from subsets (31 finger flexion, 31 finger extension, and 4 wrist movements in this paper)...
January 4, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28053263/the-quality-of-randomised-controlled-trials-involving-surgery-from-the-hand-to-the-elbow-a-critical-analysis-of-the-literature
#16
J M Kim, R M Zimmerman, C M Jones, A Al Muhit, J P Higgins, K R Means
AIMS: Our purpose was to determine the quality of current randomised controlled trials (RCTs) in hand surgery using standardised metrics. MATERIALS AND METHODS: Based on five-year mean impact factors, we selected the six journals that routinely publish studies of upper extremity surgery. Using a journal-specific search query, 62 RCTs met our inclusion criteria. Then three blinded reviewers used the Jadad and revised Coleman Methodology Score (RCMS) to assess the quality of the manuscripts...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28052831/orthogonal-plate-fixation-with-corrective-osteotomy-for-treatment-of-distal-radius-fracture-malunion
#17
Michael P Gaspar, Jenniefer Y Kho, Patrick M Kane, Hesham M Abdelfattah, Randall W Culp
PURPOSE: To report outcomes of patients with distal radius fracture malunions treated with corrective osteotomy and orthogonal volar and radial "90-90" plate fixation. METHODS: We performed a retrospective review of all patients who underwent distal radius corrective osteotomy and 90-90 fixation from January 2008 through December 2014. Demographic data, injury history, prior treatments, and clinical examination values were recorded. Preoperative radiographic measurements were used to classify the type and severity of deformity...
January 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28050979/assessment-of-the-pubertal-growth-period-using-the-open-apices-of-the-lower-teeth
#18
Yousef N Issa, Ahmad S Burhan, Fehmieh R Nawaya, Lama G Massouh
AIM: The purpose of this study was to evaluate whether the open apex measurements of the lower teeth can be used for prediction of the pubertal growth spurt. MATERIALS AND METHODS: The study group consisted of 150 males and 142 females ranging in age from 10 to 16 years. A total of 292 panoramic and 292 hand-wrist radiographs were obtained and analyzed. The skeletal maturity was determined according to the skeletal maturity indicators (SMIs) developed by Fishman...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050946/diagnosing-carpal-tunnel-syndrome-with-doppler-ultrasonography-a-comparison-of-ultrasonographic-measurements-and-electrophysiological-severity
#19
Nihal Kutlar, Ayse Oytun Bayrak, İlkay Koray Bayrak, Sevgi Canbaz, Hande Türker
INTRODUCTION: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy. Diagnosis is based on clinical history, physical examination, and electrophysiological studies. Imaging techniques are performed for difficult-to-diagnose cases because they provide information about the morphology of the median nerve. More recently, it has been shown that Doppler ultrasonography can detect increased intraneural blood flow in CTS. The aim of our study is to evaluate the relationship between the severity of CTS, hypervascularization, and cross-sectional area (CSA) to determine the diagnostic value of Doppler ultrasonography...
January 4, 2017: Neurological Research
https://www.readbyqxmd.com/read/28050547/radial-head-fracture-associated-with-posterior-interosseous-nerve-injury
#20
Bernardo Barcellos Terra, Tannus Jorge Sassine, Guilherme de Freitas Lima, Leandro Marano Rodrigues, David Victoria Hoffmann Padua, Anderson de Nadai
: Fractures of the radial head and radial neck correspond to 1.7-5.4% of all fractures and approximately 30% may present associated injuries. In the literature, there are few reports of radial head fracture with posterior interosseous nerve injury. This study aimed to report a case of radial head fracture associated with posterior interosseous nerve injury. CASE REPORT: A male patient, aged 42 years, sought medical care after falling from a skateboard. The patient related pain and limitation of movement in the right elbow and difficulty to extend the fingers of the right hand...
November 2016: Revista Brasileira de Ortopedia
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